chore: drop unused search-only omnibox exports; finish B147 simplify notes

Knip: remove dead suggestions/remove/clear helpers after organizações moved
to a typed omnibox. Land deferred-helper note + empty-sinal int coverage.

docs/plans/municipio-v2-shell-status-impl.md

@@ -91,6 +91,7 @@ flowchart LR
 - Scrub histórico de `reversalSignals` em snapshots.
 - Dual-path / ops-sync.
 - Redesign hysteresis UI beyond override/shock checkboxes already in list (keep minimal in modal when violations apply).
+- Extrair helper compartilhado `confirmLevel`/`ListLevelControl.submit` — 2 call sites; gatilho: 3º writer do mesmo endpoint+blocked path.
 
 ## Riscos e mitigação
 

tests/int/campaignMunicipalityUpdate.int.spec.ts

@@ -219,6 +219,19 @@ describe('campaign municipality update domain', () => {
     expect(visible.docs.map(({ id }) => id)).toContain(created.id)
   })
 
+  it('accepts a sinal with type and empty motivo', async () => {
+    const coordinator = await campaignFixtures().createCampaignUser('coordinator')
+    const municipality = await campaignFixtures().getMunicipality()
+
+    const created = await createMunicipalityUpdateRecord(payload, coordinator, {
+      municipality: municipality.id,
+      kind: 'sinal',
+      signalType: 'invasao',
+    })
+    expect(created.signalType).toBe('invasao')
+    expect(created.body).toBeFalsy()
+  })
+
   it('limits advisors to administered municipalities for create and read', async () => {
     const advisor = await campaignFixtures().createCampaignUser('advisor')
     const otherAdvisor = await campaignFixtures().createCampaignUser('advisor')