diff --git a/docker-compose.yml b/docker-compose.yml
index 204478df..b469ebb2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,6 +13,10 @@ services:
       POSTGRES_DB: teqo
     ports:
       - '5432:5432'
+    # Default max_connections=100 is tight for vitest forks (≈CPUs × pg pool)
+    # plus a leftover `next start` from local repro. Raise the ceiling so the
+    # int gate fails on real assertions, not "too many clients already".
+    command: ['postgres', '-c', 'max_connections=200']
     volumes:
       - pgdata:/var/lib/postgresql/data
       # Runs only on first initialization of the volume. Creates the dedicated
diff --git a/src/app/(campaign)/campanha/(app)/dobradinhas/page.tsx b/src/app/(campaign)/campanha/(app)/dobradinhas/page.tsx
index 161f47a4..e27ea4f3 100644
--- a/src/app/(campaign)/campanha/(app)/dobradinhas/page.tsx
+++ b/src/app/(campaign)/campanha/(app)/dobradinhas/page.tsx
@@ -184,15 +184,11 @@ const stateDeputyColumns = (
   {
     id: 'advisors',
     label: 'Assessores',
-    head: canEditAdvisors ? (
-      <CampaignTableHead description="Edite aqui: passe o mouse em um chip para remover, ou busque para adicionar. Quem responde por esta dobradinha.">
-        Assessores
-      </CampaignTableHead>
-    ) : (
-      <CampaignTableHead description="Quem responde por esta dobradinha.">
-        Assessores
-      </CampaignTableHead>
-    ),
+    // No `description` here: `CampaignTableHead`'s hover tooltip
+    // (`CampaignHoverTooltip`) plus `StateDeputyAdvisorRelationCell` on this
+    // list breaks production SSR with "Element type is invalid … undefined".
+    // Municípios keeps its tooltip; Assessores relies on the cell chrome.
+    head: <CampaignTableHead>Assessores</CampaignTableHead>,
     cellClassName: 'max-w-72 whitespace-normal',
     cell: (row) => (
       <StateDeputyAdvisorRelationCell
diff --git a/vitest.config.mts b/vitest.config.mts
index 2915ee18..6e879666 100644
--- a/vitest.config.mts
+++ b/vitest.config.mts
@@ -1,9 +1,18 @@
+import os from 'node:os'
 import path from 'node:path'
 
 import react from '@vitejs/plugin-react'
 import tsconfigPaths from 'vite-tsconfig-paths'
 import { defineConfig } from 'vitest/config'
 
+// Cap forks on high-core local machines so Payload pools stay under Docker
+// Postgres max_connections (default worker count ≈ CPUs; 16× pool-max-10 ≈
+// 160 clients → "too many clients already"). Do NOT set a literal
+// `maxWorkers: 8` on CI: Vitest treats that as "use up to 8" even on 2–4
+// vCPU runners, which starves shared advisory leases (invite/consent) and
+// times out at 15s. Leave CI on Vitest's CPU-relative default.
+const maxWorkers = process.env.CI ? undefined : Math.min(8, os.availableParallelism())
+
 export default defineConfig({
   resolve: {
     alias: {
@@ -15,9 +24,10 @@ export default defineConfig({
     environment: 'jsdom',
     setupFiles: ['./vitest.setup.ts'],
     include: ['tests/int/**/*.int.spec.ts'],
-    // Int specs hit a real Postgres under a ~48-way parallel suite, so wall
-    // time is dominated by pool contention, not by the code under test. The
-    // 5s default made legitimately heavy RSC-composition tests flake as the
+    ...(maxWorkers === undefined ? {} : { maxWorkers }),
+    // Int specs hit a real Postgres under a parallel suite, so wall time is
+    // dominated by pool contention, not by the code under test. The 5s
+    // default made legitimately heavy RSC-composition tests flake as the
     // suite grew (municipalityPageData was the first); one global budget
     // beats per-test overrides. Genuinely hung tests still fail — just 10s
     // later. The unit suite keeps the 5s default.