feat(C101): agenda mobile com cara de app nativo — contexto no header, swipe, filtro sticky, dia na hora atual

- toolbar do FullCalendar some no mobile; título do header mostra o período
  ("9 Agosto", "3–9 Agosto", "Agosto", "Agenda") e tap volta ao hoje
- navegação por arrasto horizontal (useAgendaSwipeNavigation): limiar 48px,
  claim 12px com preventDefault, touchcancel sintético contra o long-press
  do FC, dateClick do dia suprimido (C91/C15 intactos)
- filtro vira strip edge-to-edge sem rótulo, sticky sob a barra do app
  (containing block via :has no padding do scroll container)
- visão de dia com scroll interno (height fixa), 08:00 na abertura,
  cabeçalho do dia fixo, scroll preservado ao trocar de dia
- desktop inalterado; impl plan + plano pós-critique (C101-ux)

docs/plans/c101-agenda-mobile-calendario-nativo-impl.md

@@ -0,0 +1,84 @@
+# Impl: C101 — Agenda mobile: calendário com cara de app nativo
+
+Status: aprovado
+Atualizado em: 2026-08-09
+Issue: #497
+Intenção: docs/plans/c101-agenda-mobile-calendario-nativo.md
+Appetite restante: ~1,5–2 dias eng (herdado)
+
+## Leitura da intenção
+
+- **Outcome:** no celular, `/campanha/agenda` se comporta como calendário nativo: contexto do período no header do app (no lugar de "Agenda"), navegação por arrasto horizontal, filtro edge-to-edge sem rótulo e sempre na tela, visão de dia abrindo na hora atual (fixa em 08:00) com o cabeçalho "domingo 9" fixo ao rolar.
+- **O que NÃO negociar:** desktop intacto (título + "< > Hoje" do FullCalendar permanecem); criação inline por tap (C91) e remanejo por arrasto (C15) intactos; seletor de vista C95 no header; líder lockdown; sem segunda barra de controles; sem mudar o filtro das outras listas.
+- **O que reavaliar:** a hipótese da intenção de que o cabeçalho do dia e o scroll da linha do tempo vêm do `scrollTime` existente — **verificado no browser: hoje não há scroll interno** (height auto → a página rola, o col-header "domingo 9" rola junto, `scrollTime` é inerte). O aceite exige scroll interno + cabeçalho fixo → precisa de altura fixa no mobile.
+
+## Abordagem recomendada
+
+```mermaid
+flowchart LR
+  A[ActivityAgenda (mobile)] --> B[datesSet → visibleRange+view]
+  B --> C[activityAgendaPeriodLabel pure]
+  C --> D[AgendaPeriodChrome → SetCampaignPageChrome]
+  D --> H[TopBar: título período + tap→today]
+  A --> G[useAgendaSwipeNavigation]
+  G --> F[api.next/prev + touchcancel sintético]
+  A --> I[headerToolbar=false + height liquid + scrollTimeReset=false]
+  I --> J[FC: scroll interno, col-header fixo, 08:00]
+  K[strip: .activity-agenda-filter-strip] --> L[edge-to-edge, sem label, sticky]
+```
+
+**Opções consideradas:** A | B | C | D
+**Recomendação:** A — combina os mecanismos que o código já possui (chrome override por página, ResizeObserver/breakpoints, FC height/scrollTime) sem collection, sem lib nova, sem tocar nas outras listas.
+**Rejeitadas:** B — capar o corpo do timegrid por CSS (max-height + overflow) dessincroniza o eixo de horas do corpo (FC só sincroniza scrollers quando `verticalScrolling`); C — `contentHeight` fixo em px ignora o tamanho real do viewport (quebra em telas menores); D — deixar como está (rolagem de página) falha o aceite "cabeçalho do dia fixo".
+
+### Componentes / mudanças
+
+- **`activityAgendaPeriodLabel`** (`src/utilities/activityUi.ts`): pura — `(view, startStr, endStr) => string | null`; usa `formatBahiaCivilDate` + nomes de mês pt-BR em array estático (sem Intl). `day → "9 Agosto"`, `week → "3–9 Agosto" | "28 Julho – 3 Agosto"` (end−1), `month → "Agosto"`, `list → "Agenda"`, inválido → `null`. Inversa `activityAgendaViewFromFcId` (espelha `activityAgendaViewFcId`).
+- **`ActivityAgenda.tsx`** (`src/components/campaign/activity/ActivityAgenda.tsx`): estado `visibleRange` ganha `view` (de `DatesSetInfo.view.type`); condicionais por `useIsMobileMeasured()` (janela <768 — o mesmo breakpoint da top bar `md:hidden`; **não** o container 640, para não vazar mobile-ismo no desktop 768–800 com sidebar):
+  - `headerToolbar={isMobile ? false : { start: 'prev,next today', center: 'title' }}`
+  - `height={isMobile ? '100%' : 'auto'}` + CSS `.activity-agenda { height: calc(100svh - …) }` no media ≤767px (tune no browser) → FC liga `verticalScrolling` → scroll interno + col-header fora do scroller (fixo por construção) + `scrollTime` deixa de ser inerte.
+  - `scrollTimeReset={!isMobile}` → swipe dia→dia **preserva** o scroll do usuário; desktop mantém o reset atual.
+  - `eventDragStart/eventDragStop` → ref `isDraggingEvent` (guarda do gesto).
+  - label memo + `AgendaPeriodChrome` + `onToday` (useCallback: `api.today()` + `api.scrollToTime('08:00:00')`).
+- **`useAgendaSwipeNavigation`** (`src/components/campaign/activity/useAgendaSwipeNavigation.ts`): hook novo, agenda-only. Pointer events no container, `pointerType touch|pen`, limiar 48 px com dominância horizontal |dx| > 1.4·|dy|, um disparo por gesto. No consumo: `onSwipe('next'|'prev')` + `TouchEvent('touchcancel')` sintético no alvo do touchstart **antes** do `touchend` real — mata o timer de long-press (650 ms) do FC (senão o drag de evento começaria no meio do swipe) e o tap pendente. Enquanto `isDraggingEvent` → ignora (arrasto de remanejo é do FC).
+- **`AgendaPeriodChrome`** (`src/components/campaign/activity/AgendaPeriodChrome.tsx`): ponte agenda→header (padrão do `AgendaViewChrome`); `chrome = useMemo({ title: label, onTitleClick }, [label, onTitleClick])` + `useLayoutEffect` set/cleanup (o mesmo padrão do `SetCampaignPageChrome` — o flash "Agenda" entre commits não pinta, layout effects do mesmo commit são batched). Nada renderizado em desktop (só mobile seta).
+- **`CampaignPageChrome`** (`src/lib/campaignPageChrome.ts`): campo opcional `onTitleClick?: () => void`.
+- **`CampaignPageChromeText.tsx`** (branch mobile): quando `onTitleClick`, o título vira `<button>` (mantém truncate/flex; `title="Voltar para hoje"`; texto continua sendo o accessible name).
+- **`ActivityAgendaFilters.tsx`**: envolve a omnibox em `<div className="activity-agenda-filter-strip">`.
+- **`ActivityAgenda.css`**: bloco `@media (max-width: 767px)`:
+  - strip: `margin-inline: -1rem; margin-top: -1rem; margin-bottom: -1.5rem` (edge-to-edge, colada na top bar e no topo do calendário), `position: sticky; top: 0; z-index: 20; background: var(--background)` (branco sólido do tema campaign); label virado `sr-only` (mantém accessible name do combobox).
+  - `.activity-agenda { height: … }` para o `height='100%'` liquid (tune no browser; alvo ≈ `calc(100svh - 11rem)`).
+- **Migration:** nenhuma (só UI/estado de tela). Nenhum `Consent`/access novo.
+
+### Dados → forma
+
+- Forma escolhida: rótulo de período em texto no header do app (título da página) — "o que estou olhando" num olhar, sem UI nova. Rejeitadas: chip/segunda linha no header (vira segunda barra — anti-goal); título custom dentro do calendário (duplicaria o contexto).
+
+## Fases verificáveis
+
+1. **Tracer (schema+server é nulo aqui) → mecânica do calendário**: label pura + unit tests; props condicionais (toolbar/height/scrollTimeReset) + verificação no browser (scroll interno, col-header fixo, 08:00, `scrollTimeReset=false` preservando scroll). Ajuste do `height` calc no browser.
+2. **UI**: `AgendaPeriodChrome` + `onTitleClick` no chrome compartilhado; strip CSS edge-to-edge/sticky; gesto de swipe + `touchcancel` sintético. Impeccable C: shape → craft → critique → polish localizado na superfície mobile da agenda.
+3. **Gates**: `pnpm gate:fast` na iteração; `pnpm push` na entrega. E2E: atualizar asserções mobile do C95 (toolbar some, título mostra o período) + novos testes C101 (swipe por CDP touch, tap no título volta ao hoje, strip sticky/sem label, dia abre em 08:00 com cabeçalho fixo).
+
+## Rabbit holes / Não escopo (engenharia)
+
+- Animação do swipe / transição suave entre períodos (FC7 não tem; corte: troca instantânea — prefer motion-reduce).
+- Ano no rótulo (mês "Agosto" cruzando ano fica ambíguo — corte: sem ano, como o aceite; registrar débito leve).
+- `touch-action` no container (proibido: `pan-y` quebraria o arrasto vertical de remanejo; o gesto horizontal não precisa — não há scroll horizontal na página).
+- Re-centrar dinamicamente na "hora atual" real (o aceite fixa 08:00; registrar como opção futura).
+- Gesto no desktop e arrasto com mouse; hamburger/sidebar (C102); mudar omnibox das outras listas.
+
+## Riscos e mitigação
+
+- **Height liquid do FC7**: `height='100%'` + CSS no `.activity-agenda` — verificar no browser; fallback `contentHeight` em px só se o liquid não fechar (com tune por breakpoint).
+- **Conflito gesto × long-press do FC** (650 ms): swipe rápido em cima de evento — `touchcancel` sintético mata o timer do EventDragging; swipe lento (>650 ms) — `eventDragStart` já setou o guard → não navega. Janela residual coberta: o consumo exige 48 px com dominância; sem movimento, sem consumo.
+- **`TouchEvent` ausente em jsdom/unit**: guard `typeof TouchEvent !== 'undefined'` (browser tem; o unit test do hook cobre o disparo do `onSwipe`, não o cancel).
+- **Overflow horizontal**: o strip usa margens negativas idênticas ao `.activity-agenda-shell` (que já é edge-to-edge sem overflow) — o e2e existente (`scrollWidth <= innerWidth`) protege.
+- **Breakpoint 768–800 com sidebar**: `isMobile` é janela (<768) — a faixa desktop 768–800 com container estreito mantém o chrome desktop (toolbar visível, sem override, sem swipe). Comportamento existente do C95 (day view por container) intacto.
+- **E2E swipe via CDP**: `Input.dispatchTouchEvent` (precedente: WebAuthn usa CDP); swipe rápido em slot vazio (fixture cria 1 evento às 10:00 — alvo acima dele) para nunca cruzar a janela do long-press.
+
+## Aceite de engenharia
+
+- [ ] Aceite de produto da intenção ainda coberto (toolbar some no mobile, título por período, swipe, strip sticky, 08:00, "domingo 9" fixo, desktop intacto)
+- [ ] Invariantes AGENTS/engineering-standards (sem migration, sem prod, sem Consent novo, copy pt-BR / ids em inglês)
+- [ ] Testes de domínio: unit do label (day/week mês-cruzado/list/inválido) + hook do gesto (limiar/dominância/pointerType/guarda); e2e mobile novos + C95 ajustado; gate:fast e gate:push verdes

docs/plans/c101-ux-pos-critique.md

@@ -0,0 +1,46 @@
+# Impl: Agenda mobile — affordance do "voltar ao hoje" + navegação por teclado (pós-C101)
+
+Status: rascunho
+Atualizado em: 2026-08-09
+Issue: #C101-ux
+Intenção: docs/plans/c101-agenda-mobile-calendario-nativo.md
+Appetite: ~0,5 dia eng (fill-in pós-entrega)
+
+## Leitura do lote
+
+- **Outcome:** no mobile da agenda, (1) usuários de teclado/AT conseguem navegar entre períodos mesmo com a toolbar do FullCalendar escondida (C101), e (2) o tap no título do header ("voltar ao hoje") tem uma pista visual — hoje só existe `title` (hover), invisível no toque.
+- **O que NÃO negociar:** desktop intacto (toolbar continua mandando lá); swipe continua sendo o gesto primário; C91 (tap cria inline) e C15 (arrasto de remanejo) intactos; nada de segunda barra de controles.
+- **O que reavaliar:** se o FullCalendar já entrega navegação por setas no grid focado (FC tem seleção por teclado interna) — talvez baste expor/focar o grid, sem handler próprio.
+
+## Fases verificáveis
+
+1. **a11y (primeiro):** teclado no mobile — ArrowLeft/ArrowRight navegam dia/semana/mês conforme a vista. Investigar o teclado interno do FC antes de criar handler próprio; se FC já navega com o grid focado, garantir que o foco chegue lá (o container tem `tabIndex`?). Teste unitário + e2e com `page.keyboard`.
+2. **UX:** pista visual do tap-no-título — opções: chip "Hoje" discreto ao lado do título no top bar (só na agenda mobile) | ícone de calendário | nada além do affordance de botão. Validar no gate (Impeccable B/C).
+3. **Gates:** `pnpm gate:fast` na iteração; `pnpm push` na entrega.
+
+## Rabbit holes / Não escopo
+
+- Redesenhar a top bar; mudar o swipe; segunda barra; desktop; outras listas.
+
+## Riscos e mitigação
+
+- Handler próprio de teclado pode conflitar com o teclado interno do FC (seleção de célula) — verificar primeiro; se conflitar, restringir o handler a quando o foco está fora do grid.
+- Chip "Hoje" no top bar disputa espaço com [Semana ▾][sino] — medir no browser antes.
+
+## Já resolvido no simplify (não reabrir)
+
+- Contrato `onTitleClick: { action, hint }` no chrome compartilhado (copy da agenda não vaza para o componente genérico).
+- Helper compartilhado de rótulos de período (`tests/e2e/helpers/agendaPeriodLabels.ts`).
+- Sticky real do strip; suppress do dateClick no claim; guarda de resize; anchor civil do mês (incl. bug de parse UTC).
+- Robustez do e2e (poll, tolerâncias, scroller ancorado, stubMatchMedia).
+
+## Explicitamente fora (descartes + defers com gatilho deste triage)
+
+- **Defer:** validação do interplay pan-y × pointercancel em device real — gatilho: antes de qualquer evolução do gesto de swipe (o e2e CDP cobre o caminho Chromium, não o Safari/WebKit).
+- Descartados: variável CSS do budget de altura (P3); flash de hidratação do título (padrão B167 existente); nota de meia-noite nos e2e (documentada); side-effect do harness de teste (P3).
+
+## Aceite de engenharia
+
+- [ ] Teclado navega períodos no mobile sem conflitar com a seleção interna do FC
+- [ ] Tap no título comunica a ação sem depender de hover
+- [ ] Desktop, swipe, C91 e C15 intactos; gates verdes

src/components/campaign/activity/ActivityAgenda.css

@@ -37,6 +37,14 @@
 
   padding: 1rem;
   font-size: 0.875rem;
+  /* C101 — the horizontal swipe (navigation) must see pointermove events:
+     without a touch-action the browser claims any touch drag for panning and
+     fires pointercancel at the first move, killing the gesture before the
+     threshold. pan-y keeps vertical scrolling native while horizontal
+     movements stay with the page. FullCalendar's own drags survive: during an
+     event drag it preventDefaults window touchmoves (its touchScrollAllowed
+     cancellation), which stops the browser's pan claim. */
+  touch-action: pan-y;
 }
 
 .activity-agenda button {
@@ -121,6 +129,47 @@
   text-decoration: line-through;
 }
 
+/* C101 — the agenda's filter strip. The wrapper class lives in
+   ActivityAgendaFilters (agenda-only); the shared omnibox keeps its desktop
+   look everywhere else. Mobile: edge-to-edge, label visually hidden (still
+   the combobox's accessible name), sticky under the app top bar and flush
+   against the calendar card.
+   Sticky geometry: the wrapper's containing block must start flush under the
+   app bar, otherwise the sticky clamp pins it 1rem lower. The app scroll
+   container's top padding is therefore zeroed on the agenda page (scoped via
+   `:has`), so the page shell — and with it the strip's containing block —
+   starts at the top bar's bottom edge. */
+.activity-agenda-filter-strip {
+  min-width: 0;
+}
+
+@media (max-width: 767px) {
+  [data-slot='campaign-content-scroll']:has(.activity-agenda-filter-strip) {
+    padding-top: 0;
+  }
+
+  .activity-agenda-filter-strip {
+    position: sticky;
+    top: 0;
+    z-index: 20;
+    margin-inline: -1rem;
+    margin-bottom: -1.5rem;
+    background: var(--background);
+  }
+
+  .activity-agenda-filter-strip label {
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip: rect(0, 0, 0, 0);
+    white-space: nowrap;
+    border: 0;
+  }
+}
+
 @media (max-width: 767px) {
   .activity-agenda-shell {
     /* Edge-to-edge on phones: break out of the p-4 scroll padding and drop
@@ -131,6 +180,11 @@
   }
 
   .activity-agenda {
+    /* C101 — the day/week/month grid becomes a self-contained scroller on
+       phones (FullCalendar `height="100%"`), so the day header stays fixed
+       while the hours scroll and `scrollTime`/`scrollToTime` can anchor the
+       current hour. Budget: top bar + strip + bottom nav + page padding. */
+    height: calc(100svh - 12rem);
     padding: 0.5rem 0;
     font-size: 0.75rem;
   }

src/components/campaign/activity/ActivityAgenda.tsx

@@ -18,7 +18,7 @@ import themePlugin from '@fullcalendar/react/themes/classic'
 import '@fullcalendar/react/themes/classic/theme.css'
 import timeGridPlugin from '@fullcalendar/react/timegrid'
 import { UserRoundCheckIcon } from 'lucide-react'
-import { useCallback, useEffect, useRef, useState } from 'react'
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react'
 import { toast } from 'sonner'
 
 import {
@@ -29,17 +29,24 @@ import {
   ActivityInlineCreate,
   type ActivityInlineCreateDraft,
 } from '@/components/campaign/activity/ActivityInlineCreate'
+import { AgendaPeriodChrome } from '@/components/campaign/activity/AgendaPeriodChrome'
+import { useAgendaSwipeNavigation } from '@/components/campaign/activity/useAgendaSwipeNavigation'
 import type { RelationOption } from '@/components/campaign/shared/RelationMultiSelect'
 import { Button } from '@/components/ui/button'
+import { useIsMobileMeasured } from '@/hooks/use-mobile'
+import { formatBahiaCivilDate } from '@/lib/campaignTime'
 import {
   ACTIVITY_RESCHEDULE_FAILED_MESSAGE,
   activityStatusLabels,
   type ActivityStatus,
 } from '@/lib/schemas/activity'
 import {
+  activityAgendaPeriodLabel,
   activityAgendaViewFcId,
+  activityAgendaViewFromFcId,
   activitySlotPrefill,
   type ActivityAgendaState,
+  type ActivityAgendaView,
 } from '@/utilities/activityUi'
 import type { ActivityAgendaEvent } from '@/utilities/activityViewModels'
 
@@ -63,6 +70,15 @@ const eventColors: Record<ActivityStatus, { color: string; contrastColor: string
 
 const MOBILE_BREAKPOINT_PX = 640
 
+/**
+ * C101 — the desktop chrome the FullCalendar toolbar keeps: title + prev/next
+ * + today. Mobile replaces it with the app header (period title + swipe).
+ */
+const desktopToolbarConfig = { start: 'prev,next today', center: 'title' } as const
+
+/** C101 — the fixed scroll anchor the day view opens at ("hoje é fixa em 08:00"). */
+const AGENDA_DAY_SCROLL_TIME = '08:00:00'
+
 const toEventInput = (event: ActivityAgendaEvent): EventInput => ({
   id: String(event.id),
   title: event.title,
@@ -116,7 +132,13 @@ export const ActivityAgenda = ({
   const narrowRef = useRef<boolean | null>(null)
   const mountedRef = useRef(false)
   const pendingEventIDs = useRef(new Set<string>())
-  const [visibleRange, setVisibleRange] = useState<{ start: string; end: string } | null>(null)
+  const draggingEventRef = useRef(false)
+  const [visibleRange, setVisibleRange] = useState<{
+    start: string
+    end: string
+    anchorDate: string
+    view: ActivityAgendaView
+  } | null>(null)
   const [events, setEvents] = useState<EventInput[]>([])
   const [reloadCount, setReloadCount] = useState(0)
   const [isLoading, setIsLoading] = useState(true)
@@ -125,6 +147,13 @@ export const ActivityAgenda = ({
   const [isNarrow, setIsNarrow] = useState(false)
   const [createDraft, setCreateDraft] = useState<ActivityInlineCreateDraft | null>(null)
 
+  // C101 — the mobile behaviors key on the WINDOW (<768, the app top bar's
+  // own `md:hidden` breakpoint), not on the calendar container: a desktop
+  // window with a narrow content pane (768–800 with the sidebar open) keeps
+  // the desktop chrome. The container-based `isNarrow` keeps deciding the
+  // responsive day/week fallback, as before C101.
+  const { isMobile } = useIsMobileMeasured()
+
   useEffect(() => {
     mountedRef.current = true
     return () => {
@@ -210,14 +239,103 @@ export const ActivityAgenda = ({
     }
   }, [reloadCount, state, visibleRange])
 
-  const handleDatesSet = useCallback(({ startStr, endStr }: DatesSetInfo) => {
+  const handleDatesSet = useCallback(({ startStr, endStr, view }: DatesSetInfo) => {
+    const nextView = activityAgendaViewFromFcId(view.type)
+    if (!nextView) return
+    // The month grid's visible range starts on the leading Sunday of the
+    // previous month — the period label anchors on the calendar's current
+    // date (the 1st of the displayed month), which is what the title must
+    // claim. Civil date (not the ISO instant): the anchor is only the
+    // day/month of the label, and instants near midnight Bahia must not
+    // churn the range identity.
+    const anchorDate = formatBahiaCivilDate(view.calendar.getDate())
     setVisibleRange((current) =>
-      current?.start === startStr && current.end === endStr
+      current?.start === startStr &&
+      current.end === endStr &&
+      current.view === nextView &&
+      current.anchorDate === anchorDate
         ? current
-        : { start: startStr, end: endStr },
+        : { start: startStr, end: endStr, anchorDate, view: nextView },
     )
   }, [])
 
+  // C101 — the mobile header period context: derived from the range the
+  // calendar actually shows (so it follows swipe navigation and view changes),
+  // rendered only when the mobile top bar is the visible chrome.
+  const periodLabel = useMemo(() => {
+    if (!visibleRange) return null
+    return activityAgendaPeriodLabel(
+      visibleRange.view,
+      visibleRange.start,
+      visibleRange.end,
+      visibleRange.anchorDate,
+    )
+  }, [visibleRange])
+
+  const handleToday = useCallback(() => {
+    const api = calendarRef.current?.getApi()
+    if (!api) return
+    api.today()
+    // C101 rabbit-hole cut: re-center on the way back to today (the day view
+    // opens at 08:00), but never fight the user's scroll on day changes.
+    api.scrollToTime(AGENDA_DAY_SCROLL_TIME)
+  }, [])
+
+  const handleEventDragStart = useCallback(() => {
+    draggingEventRef.current = true
+  }, [])
+
+  const handleEventDragStop = useCallback(() => {
+    draggingEventRef.current = false
+  }, [])
+
+  const handleEventResizeStart = useCallback(() => {
+    draggingEventRef.current = true
+  }, [])
+
+  const handleEventResizeStop = useCallback(() => {
+    draggingEventRef.current = false
+  }, [])
+
+  const handleSwipeNavigation = useCallback((direction: 'next' | 'prev') => {
+    const api = calendarRef.current?.getApi()
+    if (!api) return
+    if (direction === 'next') api.next()
+    else api.prev()
+  }, [])
+
+  const { suppressDateClickRef } = useAgendaSwipeNavigation({
+    containerRef,
+    enabled: isMobile,
+    blockRef: draggingEventRef,
+    onSwipe: handleSwipeNavigation,
+  })
+
+  const handleDateClick = useCallback(
+    (info: DateClickInfo) => {
+      // C101 — a consumed swipe ends with FullCalendar's dateClick in the day
+      // view (single column: the hit never leaves the starting slot). The
+      // navigation already happened — swallow the click so it does not open
+      // the inline create.
+      if (suppressDateClickRef.current) return
+
+      const prefill = activitySlotPrefill(info)
+      if (!prefill) return
+
+      const jsEvent = info.jsEvent as MouseEvent | undefined
+      const hasPoint = typeof jsEvent?.clientX === 'number' && typeof jsEvent?.clientY === 'number'
+      const anchor = hasPoint
+        ? { x: (jsEvent as MouseEvent).clientX, y: (jsEvent as MouseEvent).clientY }
+        : (() => {
+            const rect = containerRef.current?.getBoundingClientRect()
+            return rect ? { x: rect.left + rect.width / 2, y: rect.top + rect.height / 2 } : null
+          })()
+
+      setCreateDraft({ ...prefill, anchor })
+    },
+    [suppressDateClickRef],
+  )
+
   const persistSchedule = useCallback(
     async ({
       id,
@@ -277,22 +395,6 @@ export const ActivityAgenda = ({
     [persistSchedule],
   )
 
-  const handleDateClick = useCallback((info: DateClickInfo) => {
-    const prefill = activitySlotPrefill(info)
-    if (!prefill) return
-
-    const jsEvent = info.jsEvent as MouseEvent | undefined
-    const hasPoint = typeof jsEvent?.clientX === 'number' && typeof jsEvent?.clientY === 'number'
-    const anchor = hasPoint
-      ? { x: (jsEvent as MouseEvent).clientX, y: (jsEvent as MouseEvent).clientY }
-      : (() => {
-          const rect = containerRef.current?.getBoundingClientRect()
-          return rect ? { x: rect.left + rect.width / 2, y: rect.top + rect.height / 2 } : null
-        })()
-
-    setCreateDraft({ ...prefill, anchor })
-  }, [])
-
   return (
     <section className="activity-agenda-shell" aria-label="Calendário de atividades">
       <div className="sr-only" aria-live="polite">
@@ -320,6 +422,8 @@ export const ActivityAgenda = ({
         </div>
       ) : null}
 
+      <AgendaPeriodChrome label={isMobile ? periodLabel : null} onToday={handleToday} />
+
       <div className="activity-agenda" aria-busy={isLoading || savingCount > 0} ref={containerRef}>
         <FullCalendar
           ref={calendarRef}
@@ -328,14 +432,12 @@ export const ActivityAgenda = ({
           timeZone="America/Bahia"
           firstDay={1}
           initialView={state.view ? activityAgendaViewFcId[state.view] : 'timeGridWeek'}
-          headerToolbar={{
-            start: 'prev,next today',
-            center: 'title',
-          }}
-          height="auto"
+          headerToolbar={isMobile ? false : desktopToolbarConfig}
+          height={isMobile ? '100%' : 'auto'}
+          scrollTimeReset={!isMobile}
           slotMinTime="07:00:00"
           slotMaxTime="22:00:00"
-          scrollTime="08:00:00"
+          scrollTime={AGENDA_DAY_SCROLL_TIME}
           nowIndicator
           allDaySlot={false}
           dayMaxEvents
@@ -347,6 +449,10 @@ export const ActivityAgenda = ({
           dateClick={handleDateClick}
           eventDrop={handleScheduleChange}
           eventResize={handleScheduleChange}
+          eventDragStart={handleEventDragStart}
+          eventDragStop={handleEventDragStop}
+          eventResizeStart={handleEventResizeStart}
+          eventResizeStop={handleEventResizeStop}
           noEventsText="Nenhum compromisso nesta janela"
           headingLevel={2}
         />

src/components/campaign/activity/ActivityAgendaFilters.tsx

@@ -105,51 +105,53 @@ export const ActivityAgendaFilters = ({
   }
 
   return (
-    <CampaignListOmnibox
-      id="agenda-omnibox"
-      label="Filtrar agenda"
-      placeholder="Filtrar por município, tag, deputado presente…"
-      chips={chips}
-      suggestions={suggestions}
-      query={query}
-      onQueryChange={setQuery}
-      isPending={isPending}
-      onSelectSuggestion={(suggestionId) => {
-        runAction(applyActivityAgendaOmniboxSuggestion({ state: draft, suggestionId }))
-      }}
-      onRemoveChip={(chipId) => {
-        runAction(removeActivityAgendaOmniboxChip({ state: draft, chipId }))
-      }}
-      onClearAll={() => {
-        runAction(clearActivityAgendaOmnibox())
-      }}
-      trailing={
-        <div className="hidden items-center gap-2 md:flex">
-          <Button
-            asChild
-            variant="outline"
-            size="icon"
-            className="min-h-11 min-w-11"
-            aria-label="Planejar giro"
-            title="Planejar giro"
-          >
-            <Link href={ACTIVITY_TOUR_COMPOSER_PATH}>
-              <MapPinnedIcon className="size-5" aria-hidden />
-            </Link>
-          </Button>
-          <Button
-            asChild
-            size="icon"
-            className="min-h-11 min-w-11"
-            aria-label="Nova atividade"
-            title="Nova atividade"
-          >
-            <Link href={buildActivityCreateHref(state)}>
-              <PlusIcon className="size-5" aria-hidden />
-            </Link>
-          </Button>
-        </div>
-      }
-    />
+    <div className="activity-agenda-filter-strip">
+      <CampaignListOmnibox
+        id="agenda-omnibox"
+        label="Filtrar agenda"
+        placeholder="Filtrar por município, tag, deputado presente…"
+        chips={chips}
+        suggestions={suggestions}
+        query={query}
+        onQueryChange={setQuery}
+        isPending={isPending}
+        onSelectSuggestion={(suggestionId) => {
+          runAction(applyActivityAgendaOmniboxSuggestion({ state: draft, suggestionId }))
+        }}
+        onRemoveChip={(chipId) => {
+          runAction(removeActivityAgendaOmniboxChip({ state: draft, chipId }))
+        }}
+        onClearAll={() => {
+          runAction(clearActivityAgendaOmnibox())
+        }}
+        trailing={
+          <div className="hidden items-center gap-2 md:flex">
+            <Button
+              asChild
+              variant="outline"
+              size="icon"
+              className="min-h-11 min-w-11"
+              aria-label="Planejar giro"
+              title="Planejar giro"
+            >
+              <Link href={ACTIVITY_TOUR_COMPOSER_PATH}>
+                <MapPinnedIcon className="size-5" aria-hidden />
+              </Link>
+            </Button>
+            <Button
+              asChild
+              size="icon"
+              className="min-h-11 min-w-11"
+              aria-label="Nova atividade"
+              title="Nova atividade"
+            >
+              <Link href={buildActivityCreateHref(state)}>
+                <PlusIcon className="size-5" aria-hidden />
+              </Link>
+            </Button>
+          </div>
+        }
+      />
+    </div>
   )
 }

src/components/campaign/activity/AgendaPeriodChrome.tsx

@@ -0,0 +1,31 @@
+'use client'
+
+import { useMemo } from 'react'
+
+import { SetCampaignPageChrome } from '@/components/campaign/shell/CampaignPageChromeContext'
+
+/**
+ * C101 — agenda page → app header bridge for the period context: while the
+ * mobile calendar navigates, the top bar title shows the visible period
+ * ("9 Agosto", "3–9 Agosto", "Agosto") instead of the catalog "Agenda", and
+ * tapping it returns to today (the "Hoje" toolbar button is hidden on
+ * phones). Desktop never mounts this — the agenda only renders it when the
+ * mobile top bar is the visible chrome.
+ */
+export const AgendaPeriodChrome = ({
+  label,
+  onToday,
+}: {
+  label: string | null
+  onToday: () => void
+}) => {
+  const chrome = useMemo(
+    () =>
+      label ? { title: label, onTitleClick: { action: onToday, hint: 'Voltar para hoje' } } : null,
+    [label, onToday],
+  )
+
+  if (!chrome) return null
+
+  return <SetCampaignPageChrome chrome={chrome} />
+}

src/components/campaign/activity/useAgendaSwipeNavigation.ts

@@ -0,0 +1,221 @@
+'use client'
+
+import { useCallback, useEffect, useRef, type MutableRefObject, type RefObject } from 'react'
+
+/**
+ * C101 — horizontal swipe navigation for the mobile agenda. FullCalendar has
+ * no swipe gesture of its own, so this hook listens for a clear horizontal
+ * drag on the calendar container and maps it to prev/next navigation.
+ *
+ * Chromium's pan controller claims any touch drag for scrolling the moment
+ * the first touchmove passes its slop — firing pointercancel and ending the
+ * pointer stream (on a real swipe the first move is small, so the 48px
+ * threshold would never be reached). The fix is the classic swipe-vs-scroll
+ * pattern: a NON-PASSIVE touchmove listener on the container calls
+ * `preventDefault` as soon as the gesture is clearly horizontal (dead zone +
+ * dominance), which stops the browser from claiming it. Vertical moves get no
+ * preventDefault, so the timegrid keeps scrolling natively (and the browser
+ * cancels the pointer stream — the gesture then resets, which is correct).
+ *
+ * Contract with FullCalendar's touch interactions (FC runs on touch events,
+ * this hook on pointer events, both on the same gesture):
+ *
+ * - Tap (inline create, C91) needs no movement: a swipe crosses the
+ *   threshold and FC's own hit-equality (initialHit !== finalHit) already
+ *   suppresses the dateClick.
+ * - The day view has a single column, so ANY horizontal drag ends with
+ *   initialHit === finalHit and FC fires a dateClick: the caller ignores
+ *   clicks while `suppressDateClickRef` is set. The flag arms at the 12px
+ *   claim (a sub-threshold flick must not open the inline create either)
+ *   and clears on the next pointerdown — a genuine tap after a failed swipe
+ *   keeps working.
+ * - The event long-press (650ms, C15 reschedule) must not fire mid-swipe:
+ *   on consume we dispatch a synthetic `touchcancel` at the touchstart
+ *   target — browsers emit real touchcancel exactly when a gesture is taken
+ *   away, and FC treats it as a touch end, clearing its pending timers.
+ * - A drag FC already owns (eventDragStart/eventResizeStart fired) is
+ *   blocked via `blockRef`: slow horizontal drags on events stay
+ *   reschedules.
+ *
+ * Only touch/pen pointers navigate — mouse keeps the desktop toolbar.
+ */
+
+const AGENDA_SWIPE_THRESHOLD_PX = 48
+const AGENDA_SWIPE_DOMINANCE = 1.4
+/** Horizontal movement that already proves intent (pan claim dead zone). */
+const AGENDA_SWIPE_CLAIM_PX = 12
+/** Backstop for the dateClick suppression when no next gesture ever comes. */
+const AGENDA_CLICK_SUPPRESSION_MS = 500
+
+type AgendaSwipeDirection = 'next' | 'prev'
+
+type AgendaSwipeGesture = {
+  pointerId: number
+  startX: number
+  startY: number
+  startTarget: EventTarget | null
+  consumed: boolean
+}
+
+export const useAgendaSwipeNavigation = ({
+  containerRef,
+  enabled,
+  blockRef,
+  onSwipe,
+}: {
+  containerRef: RefObject<HTMLElement | null>
+  /** Render-time gate (viewport/state-driven): when false, no gesture starts. */
+  enabled: boolean
+  /** Event-time gate: when true, an in-flight gesture is abandoned (FC drag owns the pointer). */
+  blockRef: MutableRefObject<boolean>
+  onSwipe: (direction: AgendaSwipeDirection) => void
+}): { suppressDateClickRef: MutableRefObject<boolean> } => {
+  const gestureRef = useRef<AgendaSwipeGesture | null>(null)
+  const enabledRef = useRef(enabled)
+  const blockRefRef = useRef(blockRef)
+  const onSwipeRef = useRef(onSwipe)
+  const suppressTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  /**
+   * The day view has a single column, so a horizontal drag never leaves the
+   * slot it started on: FullCalendar's dateClick fires (initialHit ===
+   * finalHit) at the end of the gesture. The caller ignores that click —
+   * the drag either navigated (consume) or was a sub-threshold flick, and
+   * neither may open the inline create.
+   */
+  const suppressDateClickRef = useRef(false)
+
+  enabledRef.current = enabled
+  blockRefRef.current = blockRef
+  onSwipeRef.current = onSwipe
+
+  const armClickSuppression = useCallback(() => {
+    suppressDateClickRef.current = true
+    if (suppressTimerRef.current) clearTimeout(suppressTimerRef.current)
+    suppressTimerRef.current = setTimeout(() => {
+      suppressTimerRef.current = null
+      suppressDateClickRef.current = false
+    }, AGENDA_CLICK_SUPPRESSION_MS)
+  }, [])
+
+  const handlePointerDown = useCallback((event: PointerEvent) => {
+    if (!enabledRef.current || blockRefRef.current.current) return
+    if (event.pointerType !== 'touch' && event.pointerType !== 'pen') return
+    if (event.isPrimary === false) return
+
+    // A new gesture means the previous one ended: its dateClick (if any) has
+    // already fired, so a genuine tap right after a failed swipe is safe.
+    suppressDateClickRef.current = false
+    if (suppressTimerRef.current) {
+      clearTimeout(suppressTimerRef.current)
+      suppressTimerRef.current = null
+    }
+
+    gestureRef.current = {
+      pointerId: event.pointerId,
+      startX: event.clientX,
+      startY: event.clientY,
+      startTarget: event.target,
+      consumed: false,
+    }
+  }, [])
+
+  const handleTouchMove = useCallback(
+    (event: TouchEvent) => {
+      const gesture = gestureRef.current
+      if (!gesture || gesture.consumed || blockRefRef.current.current) return
+      const touch = event.touches[0]
+      if (!touch) return
+
+      const deltaX = touch.clientX - gesture.startX
+      const deltaY = touch.clientY - gesture.startY
+      if (
+        Math.abs(deltaX) > AGENDA_SWIPE_CLAIM_PX &&
+        Math.abs(deltaX) > Math.abs(deltaY) * AGENDA_SWIPE_DOMINANCE
+      ) {
+        // Clearly horizontal: keep the browser from claiming the gesture for
+        // panning (which would pointercancel the stream before the
+        // threshold) AND suppress the dateClick a sub-threshold flick would
+        // otherwise trigger in the day view.
+        event.preventDefault()
+        armClickSuppression()
+      }
+    },
+    [armClickSuppression],
+  )
+
+  const handlePointerMove = useCallback(
+    (event: PointerEvent) => {
+      const gesture = gestureRef.current
+      if (!gesture || gesture.consumed || event.pointerId !== gesture.pointerId) return
+      if (blockRefRef.current.current) {
+        gestureRef.current = null
+        return
+      }
+
+      const deltaX = event.clientX - gesture.startX
+      const deltaY = event.clientY - gesture.startY
+      if (Math.abs(deltaX) < AGENDA_SWIPE_THRESHOLD_PX) return
+      if (Math.abs(deltaX) < Math.abs(deltaY) * AGENDA_SWIPE_DOMINANCE) {
+        // Vertical drag (scrolling the timeline, rescheduling): never navigate.
+        gesture.consumed = true
+        return
+      }
+
+      gesture.consumed = true
+
+      // Kill FullCalendar's pending long-press/tap timers FIRST: its touch
+      // listeners are attached to the touchstart target, so the cancel must be
+      // dispatched there while that node is still connected (synthetic
+      // touchcancel = the browser taking the gesture away).
+      const startTarget = gesture.startTarget
+      if (typeof TouchEvent !== 'undefined' && startTarget instanceof Element) {
+        startTarget.dispatchEvent(
+          new TouchEvent('touchcancel', { bubbles: true, cancelable: true }),
+        )
+      }
+
+      armClickSuppression()
+      onSwipeRef.current(deltaX < 0 ? 'next' : 'prev')
+    },
+    [armClickSuppression],
+  )
+
+  const handlePointerEnd = useCallback((event: PointerEvent) => {
+    const gesture = gestureRef.current
+    if (!gesture || event.pointerId !== gesture.pointerId) return
+    gestureRef.current = null
+  }, [])
+
+  useEffect(() => {
+    const container = containerRef.current
+    if (!container) return
+    container.addEventListener('pointerdown', handlePointerDown)
+    // Non-passive: the horizontal-claim preventDefault must reach the browser
+    // before the pan controller decides (see module doc).
+    container.addEventListener('touchmove', handleTouchMove, { passive: false })
+    return () => {
+      container.removeEventListener('pointerdown', handlePointerDown)
+      container.removeEventListener('touchmove', handleTouchMove)
+    }
+  }, [containerRef, handlePointerDown, handleTouchMove])
+
+  useEffect(() => {
+    window.addEventListener('pointermove', handlePointerMove)
+    window.addEventListener('pointerup', handlePointerEnd)
+    window.addEventListener('pointercancel', handlePointerEnd)
+    return () => {
+      window.removeEventListener('pointermove', handlePointerMove)
+      window.removeEventListener('pointerup', handlePointerEnd)
+      window.removeEventListener('pointercancel', handlePointerEnd)
+    }
+  }, [handlePointerMove, handlePointerEnd])
+
+  useEffect(
+    () => () => {
+      if (suppressTimerRef.current) clearTimeout(suppressTimerRef.current)
+    },
+    [],
+  )
+
+  return { suppressDateClickRef }
+}

src/components/campaign/shell/CampaignPageChromeText.tsx

@@ -26,9 +26,24 @@ export const CampaignPageChromeText = ({
 
   return (
     <div data-slot="campaign-page-chrome" className={cn('min-w-0 flex-1 leading-tight', className)}>
-      <span data-slot="campaign-page-chrome-title" className="block truncate text-sm font-semibold">
-        {chrome.title}
-      </span>
+      {chrome.onTitleClick ? (
+        <button
+          type="button"
+          data-slot="campaign-page-chrome-title"
+          title={chrome.onTitleClick.hint}
+          onClick={chrome.onTitleClick.action}
+          className="block max-w-full truncate text-left text-sm font-semibold focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+        >
+          {chrome.title}
+        </button>
+      ) : (
+        <span
+          data-slot="campaign-page-chrome-title"
+          className="block truncate text-sm font-semibold"
+        >
+          {chrome.title}
+        </span>
+      )}
       {chrome.subtitle ? (
         <span className="block truncate text-xs text-primary-foreground/80">{chrome.subtitle}</span>
       ) : null}

src/lib/campaignPageChrome.ts

@@ -7,6 +7,15 @@ import type { CampaignUser } from '@/payload-types'
 export type CampaignPageChrome = {
   title: string
   subtitle?: string
+  /**
+   * C101 — page-owned action on the app-header title (mobile layout only).
+   * The agenda uses it to make the period label the "return to today"
+   * control, since the FullCalendar "Hoje" toolbar button is hidden on
+   * phones. Only client-rendered overrides set it — the catalog never does.
+   * The `hint` is the page's own copy (rendered as the button tooltip), so
+   * the shared chrome does not hardcode agenda wording.
+   */
+  onTitleClick?: { action: () => void; hint: string }
 }
 
 type CampaignRole = CampaignUser['role']

src/utilities/activityUi.ts

@@ -1,7 +1,11 @@
 import type { Where } from 'payload'
 
 import { CAMPAIGN_AGENDA_HOME } from '@/lib/campaignPaths'
-import { parseBahiaDateTimeInput } from '@/lib/campaignTime'
+import {
+  formatBahiaCivilDate,
+  parseBahiaDateTimeInput,
+  subtractBahiaCivilDays,
+} from '@/lib/campaignTime'
 import { isContactSearchQueryReady, normalizeContactSearchQuery } from '@/lib/contactSearchQuery'
 import {
   activityStatuses,
@@ -64,6 +68,100 @@ export const activityAgendaViewFcId: Record<ActivityAgendaView, string> = {
   list: 'listMonth',
 }
 
+/**
+ * Inverse of `activityAgendaViewFcId`: the FullCalendar view id reported by
+ * `datesSet` back to the agenda's own view vocabulary.
+ */
+export const activityAgendaViewFromFcId = (fcId: string): ActivityAgendaView | null => {
+  const match = activityAgendaViews.find((view) => activityAgendaViewFcId[view] === fcId)
+  return match ?? null
+}
+
+const ptBrMonthNames = [
+  'Janeiro',
+  'Fevereiro',
+  'Março',
+  'Abril',
+  'Maio',
+  'Junho',
+  'Julho',
+  'Agosto',
+  'Setembro',
+  'Outubro',
+  'Novembro',
+  'Dezembro',
+] as const
+
+const civilDateParts = (civilDate: string): { day: number; month: number } | null => {
+  const [year, month, day] = civilDate.split('-').map(Number)
+  if (
+    !Number.isInteger(year) ||
+    !Number.isInteger(month) ||
+    !Number.isInteger(day) ||
+    month < 1 ||
+    month > 12 ||
+    day < 1 ||
+    day > 31
+  ) {
+    return null
+  }
+  return { day, month }
+}
+
+const civilDateLabel = (civilDate: string): string | null => {
+  const parts = civilDateParts(civilDate)
+  if (!parts) return null
+  return `${parts.day} ${ptBrMonthNames[parts.month - 1]}`
+}
+
+/**
+ * C101 — the period context the mobile app header shows while the calendar
+ * navigates: day → "9 Agosto"; week → "3–9 Agosto" (visible Mon–Sun, months
+ * spelled out when the range crosses one: "28 Julho – 3 Agosto"); month →
+ * "Agosto"; list → "Agenda" (the dates live in the list body). The month
+ * label uses the view's current date, NOT the grid range start: the month
+ * grid's visible range begins on the leading Sunday of the previous month.
+ * Returns null when the range cannot be read, so the header falls back to
+ * the catalog title instead of inventing a label.
+ */
+export const activityAgendaPeriodLabel = (
+  view: ActivityAgendaView,
+  startStr: string,
+  endStr: string,
+  currentDateStr: string,
+): string | null => {
+  if (view === 'list') return 'Agenda'
+
+  const civilDateOf = (value: string): string | null => {
+    const date = new Date(value)
+    return Number.isNaN(date.getTime()) ? null : formatBahiaCivilDate(date)
+  }
+
+  const start = civilDateOf(startStr)
+  const end = civilDateOf(endStr)
+  const startParts = start ? civilDateParts(start) : null
+  const endParts = end ? civilDateParts(end) : null
+  if (!start || !end || !startParts || !endParts) return null
+
+  if (view === 'day') return civilDateLabel(start)
+
+  // The anchor is ALREADY a Bahia civil date (`formatBahiaCivilDate` output,
+  // no timezone) — parsing it as an instant would re-derive it from UTC
+  // midnight and shift it back a day (2026-09-01 → 31 Agosto in Bahia).
+  const currentParts = civilDateParts(currentDateStr)
+  if (view === 'month') {
+    if (!currentParts) return null
+    return ptBrMonthNames[currentParts.month - 1]
+  }
+
+  const weekEnd = civilDateParts(subtractBahiaCivilDays(end, 1))
+  if (!weekEnd) return null
+  if (weekEnd.month === startParts.month) {
+    return `${startParts.day}–${weekEnd.day} ${ptBrMonthNames[startParts.month - 1]}`
+  }
+  return `${startParts.day} ${ptBrMonthNames[startParts.month - 1]} – ${weekEnd.day} ${ptBrMonthNames[weekEnd.month - 1]}`
+}
+
 const isActivityAgendaView = (value: string | undefined): value is ActivityAgendaView =>
   activityAgendaViews.includes(value as ActivityAgendaView)
 

tests/e2e/campaignActivity.e2e.spec.ts

@@ -1,6 +1,7 @@
 import { formatBahiaCivilDate, parseBahiaDateTimeInput } from '../../src/lib/campaignTime.js'
 import { hookFilledCreateData } from '../../src/utilities/hookFilledData.js'
 import { campaignPageChrome, expect, test } from './fixtures/campaignE2EFixtures.js'
+import { dayLabelFor, ptBrMonthNames } from './helpers/agendaPeriodLabels.js'
 
 test.describe('Atividades — registro-fundação', () => {
   test.setTimeout(90_000)
@@ -344,26 +345,38 @@ test.describe('Agenda — calendário operacional', () => {
       .click()
     await page.setViewportSize({ width: 390, height: 844 })
     await expect(viewSelector).toHaveAttribute('aria-label', 'Modo de visualização: Mês')
-    await expect(page.getByRole('button', { name: 'Este mês' })).toBeVisible({ timeout: 15_000 })
+    // C101 — the mobile calendar drops the FullCalendar toolbar: the period
+    // context lives in the app header instead (the current month's name).
+    await expect(page.getByRole('button', { name: 'Este mês' })).toHaveCount(0, {
+      timeout: 15_000,
+    })
+    const todayCivil = formatBahiaCivilDate(new Date())
+    const monthLabel = ptBrMonthNames[Number(todayCivil.slice(5, 7)) - 1] ?? ''
+    await expect(campaignPageChrome(page, monthLabel)).toBeVisible()
 
-    // The mobile top bar selector still switches modes. The list view shares
-    // the "Este mês" today label but drops the calendar grid.
+    // The mobile top bar selector still switches modes. The list view drops
+    // the calendar grid and the header goes back to the plain "Agenda" (the
+    // dates live in the list body).
     await viewSelector.click()
     await page.getByRole('menuitemradio', { name: 'Lista', exact: true }).click()
     await expect(page).toHaveURL(`${campaign.baseURL}/campanha/agenda?view=list`)
     await expect(viewSelector).toHaveAttribute('aria-label', 'Modo de visualização: Lista')
-    await expect(page.getByRole('button', { name: 'Este mês' })).toBeVisible({ timeout: 15_000 })
+    await expect(page.getByRole('button', { name: 'Este mês' })).toHaveCount(0, {
+      timeout: 15_000,
+    })
+    await expect(campaignPageChrome(page, 'Agenda')).toBeVisible()
     await expect(page.getByRole('grid')).toHaveCount(0, { timeout: 15_000 })
 
     // A navigation that drops the `view` param returns the calendar to the
     // responsive default instead of keeping an orphan view the selector no
     // longer claims (sidebar link / back-forward). Still on the 390px
-    // viewport, so the narrow default is day ("Hoje" today label, grid back).
+    // viewport, so the narrow default is day (grid back, no toolbar: the
+    // header shows today's period instead of a "Hoje" button).
     await page.goto(`${campaign.baseURL}/campanha/agenda`)
     await expect(viewSelector).toHaveAttribute('aria-label', 'Modo de visualização: Dia')
-    await expect(page.getByRole('button', { name: 'Hoje', exact: true })).toBeVisible({
-      timeout: 15_000,
-    })
+    const todayLabel = dayLabelFor(formatBahiaCivilDate(new Date()))
+    await expect(campaignPageChrome(page, todayLabel)).toBeVisible({ timeout: 15_000 })
+    await expect(page.getByRole('button', { name: 'Hoje', exact: true })).toHaveCount(0)
     await expect(page.getByRole('grid').first()).toBeVisible()
   })
 })

tests/e2e/campaignAgendaMobile.e2e.spec.ts

@@ -0,0 +1,265 @@
+import type { CDPSession, Locator, Page } from '@playwright/test'
+
+import { formatBahiaCivilDate, parseBahiaDateTimeInput } from '../../src/lib/campaignTime.js'
+import { hookFilledCreateData } from '../../src/utilities/hookFilledData.js'
+import {
+  campaignPageChrome,
+  expect,
+  test,
+  type CampaignE2EFixture,
+} from './fixtures/campaignE2EFixtures.js'
+import {
+  civilDatePlusDays,
+  dayLabelFor,
+  ptBrMonthNames,
+  weekdayOf,
+} from './helpers/agendaPeriodLabels.js'
+
+const mobileHeaderTitle = (page: Page): Locator =>
+  page.locator('[data-slot="campaign-mobile-top-bar"] [data-slot="campaign-page-chrome-title"]')
+
+/**
+ * Horizontal swipe via the CDP touch pipeline (the same input path a real
+ * device takes — the only way to exercise touch gestures in Playwright).
+ * The swipe stays at the vertical middle of the calendar, clear of fixture
+ * events (which sit at 10:00), and completes far below FullCalendar's 650ms
+ * long-press, so it is a navigation, not a reschedule.
+ */
+const touchSwipe = async (
+  cdp: CDPSession,
+  box: { x: number; y: number; width: number; height: number },
+  fromRatio: number,
+  toRatio: number,
+) => {
+  const y = Math.round(box.y + box.height * 0.5)
+  const x0 = Math.round(box.x + box.width * fromRatio)
+  const x1 = Math.round(box.x + box.width * toRatio)
+  await cdp.send('Input.dispatchTouchEvent', { type: 'touchStart', touchPoints: [{ x: x0, y }] })
+  for (let i = 1; i <= 5; i += 1) {
+    const x = Math.round(x0 + ((x1 - x0) * i) / 5)
+    await cdp.send('Input.dispatchTouchEvent', { type: 'touchMove', touchPoints: [{ x, y }] })
+  }
+  await cdp.send('Input.dispatchTouchEvent', { type: 'touchEnd', touchPoints: [] })
+}
+
+const tapAt = async (cdp: CDPSession, x: number, y: number) => {
+  await cdp.send('Input.dispatchTouchEvent', { type: 'touchStart', touchPoints: [{ x, y }] })
+  await cdp.send('Input.dispatchTouchEvent', { type: 'touchEnd', touchPoints: [] })
+}
+
+const seedTodayActivity = async (campaign: CampaignE2EFixture, page: Page): Promise<string> => {
+  const { fixtures } = campaign
+  const coordinator = await fixtures.createCampaignUser('coordinator')
+  const municipality = await fixtures.claimMunicipality()
+  const civilDate = formatBahiaCivilDate(new Date())
+  const startAt = parseBahiaDateTimeInput(`${civilDate}T10:00`)
+  if (!startAt) throw new Error('Falha ao montar horário da fixture de agenda.')
+
+  await fixtures.payload.create({
+    collection: 'activity',
+    data: hookFilledCreateData<'activity'>({
+      title: fixtures.value('Compromisso mobile nativo'),
+      tags: ['Comício'],
+      status: 'confirmado',
+      startAt,
+      municipality: municipality.id,
+    }),
+    depth: 0,
+  })
+  await campaign.login(page, coordinator.email!, coordinator.password)
+  return civilDate
+}
+
+test.describe('C101 — agenda mobile com cara de app nativo', () => {
+  test.setTimeout(90_000)
+
+  test('toolbar some, o título mostra o período e tap volta ao hoje', async ({
+    campaign,
+    page,
+  }) => {
+    const civilDate = await seedTodayActivity(campaign, page)
+
+    await page.setViewportSize({ width: 390, height: 844 })
+    await page.goto(`${campaign.baseURL}/campanha/agenda`)
+    const cdp = await page.context().newCDPSession(page)
+
+    // C101 — o título do FullCalendar e os botões "< > Hoje" somem no mobile:
+    // o header do app mostra o contexto do período no lugar.
+    const todayLabel = dayLabelFor(civilDate)
+    await expect(campaignPageChrome(page, todayLabel)).toBeVisible({ timeout: 15_000 })
+    await expect(page.getByRole('button', { name: 'Hoje', exact: true })).toHaveCount(0)
+    await expect(page.getByRole('button', { name: 'Dia Anterior' })).toHaveCount(0)
+    await expect(page.getByRole('button', { name: 'Próximo Dia' })).toHaveCount(0)
+
+    // Navegação por arrasto: esquerda → dia seguinte; direita → volta. O
+    // swipe direito começa longe da borda esquerda (x=0.4): um gesto que
+    // nasça na borda é do Chrome (histórico), não da agenda.
+    const agendaBox = await page.locator('.activity-agenda').boundingBox()
+    if (!agendaBox) throw new Error('Calendário não expôs área para o gesto de navegação.')
+    const nextCivil = civilDatePlusDays(civilDate, 1)
+    await touchSwipe(cdp, agendaBox, 0.8, 0.2)
+    await expect(campaignPageChrome(page, dayLabelFor(nextCivil))).toBeVisible({ timeout: 15_000 })
+    await touchSwipe(cdp, agendaBox, 0.4, 0.85)
+    await expect(campaignPageChrome(page, todayLabel)).toBeVisible({ timeout: 15_000 })
+
+    // O swipe não abre o inline create (dia tem uma coluna só: o hit do FC
+    // nunca sai do slot inicial e o dateClick precisa ser engolido).
+    await expect(page.getByRole('dialog')).toHaveCount(0)
+
+    // Tap no título do header volta ao hoje (o "Hoje" da toolbar não existe
+    // mais no mobile). Sai primeiro do hoje para o tap ter efeito.
+    await touchSwipe(cdp, agendaBox, 0.8, 0.2)
+    await expect(campaignPageChrome(page, dayLabelFor(nextCivil))).toBeVisible({
+      timeout: 15_000,
+    })
+    const titleBox = await mobileHeaderTitle(page).boundingBox()
+    if (!titleBox) throw new Error('Título do header não expôs área de toque.')
+    await tapAt(
+      cdp,
+      Math.round(titleBox.x + titleBox.width / 2),
+      Math.round(titleBox.y + titleBox.height / 2),
+    )
+    await expect(campaignPageChrome(page, todayLabel)).toBeVisible({ timeout: 15_000 })
+
+    // Contexto por vista: mês → nome do mês; swipe no mês → mês seguinte;
+    // lista → "Agenda".
+    const viewSelector = page
+      .getByRole('button', { name: /Modo de visualização/ })
+      .filter({ visible: true })
+    await viewSelector.click()
+    await page.getByRole('menuitemradio', { name: 'Mês', exact: true }).click()
+    const monthIndex = Number(civilDate.slice(5, 7)) - 1
+    await expect(campaignPageChrome(page, ptBrMonthNames[monthIndex] ?? '')).toBeVisible({
+      timeout: 15_000,
+    })
+    await touchSwipe(cdp, agendaBox, 0.8, 0.2)
+    await expect(campaignPageChrome(page, ptBrMonthNames[(monthIndex + 1) % 12] ?? '')).toBeVisible(
+      { timeout: 15_000 },
+    )
+    await viewSelector.click()
+    await page.getByRole('menuitemradio', { name: 'Lista', exact: true }).click()
+    await expect(campaignPageChrome(page, 'Agenda')).toBeVisible({ timeout: 15_000 })
+
+    // O strip edge-to-edge não pode criar overflow horizontal.
+    expect(
+      await page.evaluate(() => document.documentElement.scrollWidth <= window.innerWidth),
+    ).toBe(true)
+  })
+
+  test('visão de dia abre na hora atual e o cabeçalho do dia fica fixo ao rolar', async ({
+    campaign,
+    page,
+  }) => {
+    const civilDate = await seedTodayActivity(campaign, page)
+
+    await page.setViewportSize({ width: 390, height: 844 })
+    await page.goto(`${campaign.baseURL}/campanha/agenda`)
+
+    const dayLabel = dayLabelFor(civilDate)
+    await expect(campaignPageChrome(page, dayLabel)).toBeVisible({ timeout: 15_000 })
+
+    // C101 — o grid de dia vira um scroller próprio (height fixa no mobile):
+    // abre ancorado em 08:00 ("hoje é fixa em 08:00")...
+    await expect
+      .poll(
+        () =>
+          page.evaluate(() => {
+            const scroller = [...document.querySelectorAll('.activity-agenda *')].find((el) => {
+              const style = getComputedStyle(el)
+              return (
+                (style.overflowY === 'auto' || style.overflowY === 'scroll') &&
+                el.scrollHeight > el.clientHeight &&
+                el.querySelector('[role="rowheader"]')
+              )
+            })
+            return scroller ? scroller.scrollTop : null
+          }),
+        { timeout: 15_000 },
+      )
+      .toBeGreaterThan(0)
+
+    // ...e o cabeçalho "domingo 9" permanece no topo enquanto os horários
+    // rolam.
+    const colHeaderText = `${weekdayOf(civilDate)} ${Number(civilDate.slice(8, 10))}`
+    const headerTop = () =>
+      page.evaluate((text) => {
+        const cell = [...document.querySelectorAll('.activity-agenda [role="columnheader"]')].find(
+          (el) => el.textContent?.includes(text),
+        )
+        return cell ? Math.round(cell.getBoundingClientRect().top) : null
+      }, colHeaderText)
+
+    const headerBefore = await headerTop()
+    expect(headerBefore).not.toBeNull()
+
+    const scrolledTo = await page.evaluate(() => {
+      const scroller = [...document.querySelectorAll('.activity-agenda *')].find((el) => {
+        const style = getComputedStyle(el)
+        return (
+          (style.overflowY === 'auto' || style.overflowY === 'scroll') &&
+          el.scrollHeight > el.clientHeight &&
+          el.querySelector('[role="rowheader"]')
+        )
+      })
+      if (!scroller) return false
+      scroller.scrollTop = 300
+      return scroller.scrollTop
+    })
+    expect(scrolledTo).toBeGreaterThan(0)
+
+    expect(await headerTop()).toBe(headerBefore)
+  })
+
+  test('o filtro vira strip edge-to-edge sem rótulo, colado na barra e no calendário', async ({
+    campaign,
+    page,
+  }) => {
+    const civilDate = await seedTodayActivity(campaign, page)
+
+    await page.setViewportSize({ width: 390, height: 844 })
+    await page.goto(`${campaign.baseURL}/campanha/agenda`)
+
+    // Espera o layout mobile assentar (B167): o painel de chat renderiza
+    // "desktop com chat aberto" no primeiro frame e rouba largura do
+    // conteúdo até a medição do viewport — o título do período no header só
+    // existe no layout mobile de verdade.
+    await expect(campaignPageChrome(page, dayLabelFor(civilDate))).toBeVisible({
+      timeout: 15_000,
+    })
+
+    // O rótulo some visualmente (sr-only: 0 de altura renderizada) mas
+    // continua sendo o nome acessível do campo.
+    const labelHeight = await page.evaluate(() => {
+      const label = document.querySelector('.activity-agenda-filter-strip label')
+      return label ? Math.round(label.getBoundingClientRect().height) : null
+    })
+    expect(labelHeight).not.toBeNull()
+    expect(labelHeight!).toBeLessThanOrEqual(1)
+    await expect(page.getByRole('combobox', { name: 'Filtrar agenda' })).toBeVisible()
+
+    // Edge-to-edge, encostada na barra do app e no limite superior do
+    // calendário, sticky enquanto navega. Tolerância de 1px para o
+    // arredondamento de subpixel (precedente actionGridGeometry).
+    const geometry = await page.evaluate(() => {
+      const strip = document.querySelector('.activity-agenda-filter-strip')
+      const topBar = document.querySelector('[data-slot="campaign-mobile-top-bar"]')
+      const calendar = document.querySelector('.activity-agenda-shell')
+      if (!strip || !topBar || !calendar) return null
+      const stripRect = strip.getBoundingClientRect()
+      return {
+        stripTop: Math.round(stripRect.top),
+        topBarBottom: Math.round(topBar.getBoundingClientRect().bottom),
+        stripBottom: Math.round(stripRect.bottom),
+        calendarTop: Math.round(calendar.getBoundingClientRect().top),
+        stripWidth: Math.round(stripRect.width),
+        windowWidth: window.innerWidth,
+        sticky: getComputedStyle(strip).position,
+      }
+    })
+    expect(geometry).not.toBeNull()
+    expect(Math.abs(geometry!.stripTop - geometry!.topBarBottom)).toBeLessThanOrEqual(1)
+    expect(Math.abs(geometry!.stripBottom - geometry!.calendarTop)).toBeLessThanOrEqual(1)
+    expect(geometry!.stripWidth).toBe(geometry!.windowWidth)
+    expect(geometry!.sticky).toBe('sticky')
+  })
+})

tests/e2e/fixtures/campaignE2EFixtures.ts

@@ -516,7 +516,7 @@ export const expectCampaignBiometricsReady = async (page: Page): Promise<void> =
   }).toPass({ timeout: 15_000 })
 }
 
-type CampaignE2EFixture = {
+export type CampaignE2EFixture = {
   baseURL: string
   fixtures: CampaignE2EOwnership
   login: (page: Page, identifier: string, password: string) => Promise<void>

tests/e2e/helpers/agendaPeriodLabels.ts

@@ -0,0 +1,48 @@
+/**
+ * Agenda mobile (C101) — the header period label is computed from the
+ * calendar's current date, so the e2e specs derive the expected label from
+ * "today" instead of hardcoding it. Shared by the agenda mobile spec and the
+ * C95 view-switching spec. Production vocabulary lives in
+ * `src/utilities/activityUi.ts`; these helpers only mirror the label FORMAT
+ * for assertions (the unit spec pins the literal strings).
+ */
+
+export const ptBrMonthNames = [
+  'Janeiro',
+  'Fevereiro',
+  'Março',
+  'Abril',
+  'Maio',
+  'Junho',
+  'Julho',
+  'Agosto',
+  'Setembro',
+  'Outubro',
+  'Novembro',
+  'Dezembro',
+]
+
+const ptBrWeekdays = [
+  'domingo',
+  'segunda-feira',
+  'terça-feira',
+  'quarta-feira',
+  'quinta-feira',
+  'sexta-feira',
+  'sábado',
+]
+
+/** "2026-08-09" → "9 Agosto" (the mobile header period label). */
+export const dayLabelFor = (civilDate: string): string =>
+  `${Number(civilDate.slice(8, 10))} ${ptBrMonthNames[Number(civilDate.slice(5, 7)) - 1]}`
+
+export const civilDatePlusDays = (civilDate: string, days: number): string => {
+  const [year, month, day] = civilDate.split('-').map(Number)
+  const date = new Date(Date.UTC(year, month - 1, day + days))
+  return `${date.getUTCFullYear()}-${String(date.getUTCMonth() + 1).padStart(2, '0')}-${String(date.getUTCDate()).padStart(2, '0')}`
+}
+
+export const weekdayOf = (civilDate: string): string => {
+  const [year, month, day] = civilDate.split('-').map(Number)
+  return ptBrWeekdays[new Date(Date.UTC(year, month - 1, day)).getUTCDay()] ?? ''
+}

tests/unit/activityAgendaInteractions.unit.spec.tsx

@@ -1,6 +1,6 @@
 import { cleanup, fireEvent, render, screen, waitFor } from '@testing-library/react'
 import { createElement, useEffect } from 'react'
-import { afterEach, describe, expect, it, vi } from 'vitest'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 
 const mocks = vi.hoisted(() => ({
   loadEvents: vi.fn(),
@@ -44,7 +44,11 @@ type ScheduleMutationInfo = {
 }
 
 type CalendarProps = {
-  datesSet: (info: { startStr: string; endStr: string }) => void
+  datesSet: (info: {
+    startStr: string
+    endStr: string
+    view: { type: string; calendar: { getDate: () => Date } }
+  }) => void
   eventDrop: (info: ScheduleMutationInfo) => void
   eventResize: (info: ScheduleMutationInfo) => void
   dateClick: (info: DateClickInfo) => void
@@ -57,6 +61,10 @@ vi.mock('@fullcalendar/react', () => {
       datesSet({
         startStr: '2026-08-03T03:00:00.000Z',
         endStr: '2026-08-10T03:00:00.000Z',
+        view: {
+          type: 'timeGridWeek',
+          calendar: { getDate: () => new Date('2026-08-03T03:00:00.000Z') },
+        },
       })
     }, [datesSet])
 
@@ -100,17 +108,34 @@ vi.mock('@fullcalendar/react', () => {
 })
 
 import { ActivityAgenda } from '@/components/campaign/activity/ActivityAgenda'
+import { CampaignPageChromeProvider } from '@/components/campaign/shell/CampaignPageChromeContext'
+import { stubMatchMedia } from '../helpers/matchMedia'
+
+const renderAgenda = (props: { state?: object } = {}) =>
+  render(
+    <CampaignPageChromeProvider role="coordinator">
+      <ActivityAgenda state={props.state ?? {}} />
+    </CampaignPageChromeProvider>,
+  )
 
 describe('ActivityAgenda schedule failures', () => {
+  // C101 — ActivityAgenda reads the viewport signal (useIsMobileMeasured);
+  // jsdom has no matchMedia, so the harness pins the desktop layout (the
+  // toolbar and the calendar body are what these tests exercise).
+  beforeEach(() => {
+    stubMatchMedia()
+  })
+
   afterEach(() => {
     cleanup()
     vi.clearAllMocks()
+    vi.unstubAllGlobals()
   })
 
   it('reverts a transport failure and releases the event for another attempt', async () => {
     mocks.loadEvents.mockResolvedValue([])
     mocks.reschedule.mockRejectedValue(new Error('transport failed'))
-    render(<ActivityAgenda state={{}} />)
+    renderAgenda()
 
     await waitFor(() => expect(mocks.loadEvents).toHaveBeenCalled())
     fireEvent.click(screen.getByRole('button', { name: 'Mover' }))
@@ -126,7 +151,7 @@ describe('ActivityAgenda schedule failures', () => {
   it('reverts a refused resize with the safe server message', async () => {
     mocks.loadEvents.mockResolvedValue([])
     mocks.reschedule.mockResolvedValue({ ok: false, message: 'Remarcação recusada.' })
-    render(<ActivityAgenda state={{}} />)
+    renderAgenda()
 
     await waitFor(() => expect(mocks.loadEvents).toHaveBeenCalled())
     fireEvent.click(screen.getByRole('button', { name: 'Redimensionar' }))
@@ -137,7 +162,7 @@ describe('ActivityAgenda schedule failures', () => {
 
   it('abre a criação inline no clique de um slot vazio, sem navegar', async () => {
     mocks.loadEvents.mockResolvedValue([])
-    render(<ActivityAgenda state={{}} />)
+    renderAgenda()
 
     await waitFor(() => expect(mocks.loadEvents).toHaveBeenCalled())
     expect(mocks.routerPush).not.toHaveBeenCalled()
@@ -153,7 +178,7 @@ describe('ActivityAgenda schedule failures', () => {
 
   it('não exibe o aviso de janela vazia nem o botão de criação acima do calendário', async () => {
     mocks.loadEvents.mockResolvedValue([])
-    render(<ActivityAgenda state={{}} />)
+    renderAgenda()
 
     await waitFor(() => expect(mocks.loadEvents).toHaveBeenCalled())
 

tests/unit/activityAgendaPeriodLabel.unit.spec.ts

@@ -0,0 +1,125 @@
+import { describe, expect, it } from 'vitest'
+
+import { activityAgendaPeriodLabel, activityAgendaViewFromFcId } from '@/utilities/activityUi'
+
+describe('activityAgendaPeriodLabel', () => {
+  it('rotula o dia pelo dia e mês', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'day',
+        '2026-08-09T00:00:00-03:00',
+        '2026-08-10T00:00:00-03:00',
+        '2026-08-09T00:00:00-03:00',
+      ),
+    ).toBe('9 Agosto')
+  })
+
+  it('rotula a semana pelo intervalo visível (segunda a domingo) no mesmo mês', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'week',
+        '2026-08-03T00:00:00-03:00',
+        '2026-08-10T00:00:00-03:00',
+        '2026-08-03T00:00:00-03:00',
+      ),
+    ).toBe('3–9 Agosto')
+  })
+
+  it('escreve os dois meses quando a semana cruza o limite do mês', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'week',
+        '2026-07-27T00:00:00-03:00',
+        '2026-08-03T00:00:00-03:00',
+        '2026-07-27T00:00:00-03:00',
+      ),
+    ).toBe('27 Julho – 2 Agosto')
+  })
+
+  it('cruza o ano sem omitir o dia final', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'week',
+        '2026-12-28T00:00:00-03:00',
+        '2027-01-04T00:00:00-03:00',
+        '2026-12-28T00:00:00-03:00',
+      ),
+    ).toBe('28 Dezembro – 3 Janeiro')
+  })
+
+  it('rotula o mês pelo mês ativo, não pelo início do grid (domingo antecedente)', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'month',
+        '2026-07-26T00:00:00-03:00',
+        '2026-09-01T00:00:00-03:00',
+        '2026-08-01',
+      ),
+    ).toBe('Agosto')
+  })
+
+  it('aceita o anchor como data civil pura (a forma do runtime, sem timezone)', () => {
+    // O runtime passa `formatBahiaCivilDate(getDate())` — "2026-09-01" sem
+    // offset. Parsear como instante UTC a deslocaria para 31 de agosto na
+    // Bahia (meia-noite UTC = 21:00 do dia anterior).
+    expect(
+      activityAgendaPeriodLabel(
+        'month',
+        '2026-08-31T00:00:00-03:00',
+        '2026-10-01T00:00:00-03:00',
+        '2026-09-01',
+      ),
+    ).toBe('Setembro')
+  })
+
+  it('mantém "Agenda" na lista, onde os dias aparecem no corpo', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'list',
+        '2026-08-01T00:00:00-03:00',
+        '2026-09-01T00:00:00-03:00',
+        '2026-08-01T00:00:00-03:00',
+      ),
+    ).toBe('Agenda')
+  })
+
+  it('retorna null para intervalo ilegível', () => {
+    expect(
+      activityAgendaPeriodLabel(
+        'day',
+        'não-é-data',
+        '2026-08-10T00:00:00-03:00',
+        '2026-08-09T00:00:00-03:00',
+      ),
+    ).toBeNull()
+    expect(
+      activityAgendaPeriodLabel(
+        'week',
+        '2026-08-03T00:00:00-03:00',
+        'não-é-data',
+        '2026-08-03T00:00:00-03:00',
+      ),
+    ).toBeNull()
+    expect(
+      activityAgendaPeriodLabel(
+        'month',
+        '2026-08-01T00:00:00-03:00',
+        '2026-09-01T00:00:00-03:00',
+        'não-é-data',
+      ),
+    ).toBeNull()
+  })
+})
+
+describe('activityAgendaViewFromFcId', () => {
+  it('espelha activityAgendaViewFcId para as quatro vistas', () => {
+    expect(activityAgendaViewFromFcId('timeGridWeek')).toBe('week')
+    expect(activityAgendaViewFromFcId('timeGridDay')).toBe('day')
+    expect(activityAgendaViewFromFcId('dayGridMonth')).toBe('month')
+    expect(activityAgendaViewFromFcId('listMonth')).toBe('list')
+  })
+
+  it('retorna null para um view id desconhecido', () => {
+    expect(activityAgendaViewFromFcId('multiMonthYear')).toBeNull()
+  })
+})

tests/unit/useAgendaSwipeNavigation.unit.spec.tsx

@@ -0,0 +1,197 @@
+import { cleanup, fireEvent, render } from '@testing-library/react'
+import { createElement, useRef, type MutableRefObject } from 'react'
+import { afterEach, describe, expect, it, vi } from 'vitest'
+
+import { useAgendaSwipeNavigation } from '@/components/campaign/activity/useAgendaSwipeNavigation'
+
+const pointerEvent = (
+  type: 'pointerdown' | 'pointermove' | 'pointerup' | 'pointercancel',
+  init: {
+    pointerId?: number
+    pointerType?: string
+    isPrimary?: boolean
+    clientX: number
+    clientY: number
+  },
+) =>
+  new PointerEvent(type, {
+    pointerId: init.pointerId ?? 1,
+    pointerType: init.pointerType ?? 'touch',
+    isPrimary: init.isPrimary ?? true,
+    bubbles: true,
+    clientX: init.clientX,
+    clientY: init.clientY,
+  })
+
+const Harness = ({
+  enabled = true,
+  blockRef,
+  onSwipe,
+  onReady,
+}: {
+  enabled?: boolean
+  blockRef?: MutableRefObject<boolean>
+  onSwipe: (direction: 'next' | 'prev') => void
+  onReady?: (suppressDateClickRef: MutableRefObject<boolean>) => void
+}) => {
+  const containerRef = useRef<HTMLDivElement>(null)
+  const internalBlockRef = useRef(false)
+  const { suppressDateClickRef } = useAgendaSwipeNavigation({
+    containerRef,
+    enabled,
+    blockRef: blockRef ?? internalBlockRef,
+    onSwipe,
+  })
+  if (onReady) onReady(suppressDateClickRef)
+  return createElement('div', { ref: containerRef, 'data-testid': 'agenda' })
+}
+
+const swipe = (container: HTMLElement, fromX: number, toX: number, y = 100) => {
+  const agenda = container.firstElementChild as HTMLElement
+  fireEvent(agenda, pointerEvent('pointerdown', { clientX: fromX, clientY: y }))
+  fireEvent(window, pointerEvent('pointermove', { clientX: toX, clientY: y }))
+  fireEvent(window, pointerEvent('pointerup', { clientX: toX, clientY: y }))
+}
+
+afterEach(() => {
+  cleanup()
+  vi.restoreAllMocks()
+})
+
+describe('useAgendaSwipeNavigation', () => {
+  it('navega para o período seguinte com um arrasto horizontal à esquerda', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    swipe(container as HTMLElement, 300, 100)
+    expect(onSwipe).toHaveBeenCalledWith('next')
+  })
+
+  it('navega para o período anterior com um arrasto horizontal à direita', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    swipe(container as HTMLElement, 100, 300)
+    expect(onSwipe).toHaveBeenCalledWith('prev')
+  })
+
+  it('não navega abaixo do limiar de 48px', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    swipe(container as HTMLElement, 300, 260)
+    expect(onSwipe).not.toHaveBeenCalled()
+  })
+
+  it('não navega num arrasto diagonal (dominância vertical)', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    fireEvent(
+      container.firstElementChild as HTMLElement,
+      pointerEvent('pointerdown', { clientX: 300, clientY: 100 }),
+    )
+    fireEvent(window, pointerEvent('pointermove', { clientX: 200, clientY: 180 }))
+    expect(onSwipe).not.toHaveBeenCalled()
+  })
+
+  it('ignora mouse (a toolbar do desktop continua mandando)', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    fireEvent(
+      container,
+      pointerEvent('pointerdown', { pointerType: 'mouse', clientX: 300, clientY: 100 }),
+    )
+    fireEvent(
+      window,
+      pointerEvent('pointermove', { pointerType: 'mouse', clientX: 100, clientY: 100 }),
+    )
+    expect(onSwipe).not.toHaveBeenCalled()
+  })
+
+  it('não inicia gesto com enabled=false', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { enabled: false, onSwipe }))
+    swipe(container as HTMLElement, 300, 100)
+    expect(onSwipe).not.toHaveBeenCalled()
+  })
+
+  it('abandona o gesto quando o FullCalendar começa um drag de evento (blockRef)', () => {
+    const onSwipe = vi.fn()
+    const blockRef = { current: false }
+    const { container } = render(createElement(Harness, { blockRef, onSwipe }))
+    fireEvent(
+      container.firstElementChild as HTMLElement,
+      pointerEvent('pointerdown', { clientX: 300, clientY: 100 }),
+    )
+    // a flag vira true a meio do gesto (long-press do FC venceu)
+    blockRef.current = true
+    fireEvent(window, pointerEvent('pointermove', { clientX: 100, clientY: 100 }))
+    expect(onSwipe).not.toHaveBeenCalled()
+  })
+
+  it('marca suppressDateClickRef no consumo (o swipe não abre o inline create)', () => {
+    const onSwipe = vi.fn()
+    let suppressDateClickRef: MutableRefObject<boolean> | undefined
+    const { container } = render(
+      createElement(Harness, { onSwipe, onReady: (ref) => (suppressDateClickRef = ref) }),
+    )
+    expect(suppressDateClickRef).toBeDefined()
+    expect(suppressDateClickRef!.current).toBe(false)
+    swipe(container as HTMLElement, 300, 100)
+    expect(suppressDateClickRef!.current).toBe(true)
+  })
+
+  it('marca suppressDateClickRef já no claim de 12px (um flick sub-limiar não abre o inline create)', () => {
+    const onSwipe = vi.fn()
+    let suppressDateClickRef: MutableRefObject<boolean> | undefined
+    const { container } = render(
+      createElement(Harness, { onSwipe, onReady: (ref) => (suppressDateClickRef = ref) }),
+    )
+    const agenda = container.firstElementChild as HTMLElement
+    fireEvent(agenda, pointerEvent('pointerdown', { clientX: 300, clientY: 100 }))
+    // flick de 20px: cruza o claim (12px) mas não o limiar de navegação
+    // (48px) — o claim vive no touchmove não-passivo.
+    fireEvent.touchMove(agenda, { touches: [{ clientX: 280, clientY: 100 }] })
+    expect(onSwipe).not.toHaveBeenCalled()
+    expect(suppressDateClickRef!.current).toBe(true)
+  })
+
+  it('limpa suppressDateClickRef no próximo pointerdown (o tap genuíno continua abrindo o create)', () => {
+    const onSwipe = vi.fn()
+    let suppressDateClickRef: MutableRefObject<boolean> | undefined
+    const { container } = render(
+      createElement(Harness, { onSwipe, onReady: (ref) => (suppressDateClickRef = ref) }),
+    )
+    const agenda = container.firstElementChild as HTMLElement
+    fireEvent(agenda, pointerEvent('pointerdown', { clientX: 300, clientY: 100 }))
+    fireEvent(window, pointerEvent('pointermove', { clientX: 100, clientY: 100 }))
+    expect(suppressDateClickRef!.current).toBe(true)
+    fireEvent(agenda, pointerEvent('pointerdown', { clientX: 200, clientY: 100 }))
+    expect(suppressDateClickRef!.current).toBe(false)
+  })
+
+  it('aceita pen além de touch', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    const agenda = container.firstElementChild as HTMLElement
+    fireEvent(
+      agenda,
+      pointerEvent('pointerdown', { pointerType: 'pen', clientX: 300, clientY: 100 }),
+    )
+    fireEvent(
+      window,
+      pointerEvent('pointermove', { pointerType: 'pen', clientX: 100, clientY: 100 }),
+    )
+    expect(onSwipe).toHaveBeenCalledWith('next')
+  })
+
+  it('reseta o gesto no pointercancel e aceita o próximo swipe', () => {
+    const onSwipe = vi.fn()
+    const { container } = render(createElement(Harness, { onSwipe }))
+    const agenda = container.firstElementChild as HTMLElement
+    // o browser tomou o gesto (scroll vertical): pointercancel
+    fireEvent(agenda, pointerEvent('pointerdown', { clientX: 300, clientY: 100 }))
+    fireEvent(window, pointerEvent('pointercancel', { clientX: 300, clientY: 180 }))
+    // o swipe seguinte funciona normalmente
+    fireEvent(agenda, pointerEvent('pointerdown', { clientX: 300, clientY: 100 }))
+    fireEvent(window, pointerEvent('pointermove', { clientX: 100, clientY: 100 }))
+    expect(onSwipe).toHaveBeenCalledWith('next')
+  })
+})