fix(manager): restore report filters

[lumberman]

Summary

• Preserve the Manager Report language query when moving between Report, Jobs, and Agents dashboard tabs.
• Canonicalize legacy languageIds handoffs to languageId while dropping unrelated dashboard query keys.
• Preserve the selected Report language on Coverage-originated Jobs feedback links and document the reusable pattern.

Work Loop

• ce:plan done
• ce:work done
• ce:review done
• ce:compound done

Testing

• Red first: pnpm --filter @forge/manager test -- src/features/nav/dashboard-nav-model.test.ts failed before the helper existed.
• pnpm --filter @forge/manager test -- src/features/nav/dashboard-nav-model.test.ts src/features/coverage/enrich-action-controls.test.ts
• pnpm --filter @forge/manager test
• pnpm --filter @forge/manager lint
• pnpm --filter @forge/manager typecheck
• CI=1 pnpm --filter @forge/manager build
• pnpm format:check
• git diff --check
• User-like browser smoke against this branch on http://localhost:3012 with temporary mock Strapi on localhost:1337:
  • /dashboard/coverage?languageId=529 -> Jobs -> /dashboard/jobs?languageId=529 -> Report -> /dashboard/coverage?languageId=529
  • Report -> Agents -> /dashboard/agents?languageId=529 -> Report -> /dashboard/coverage?languageId=529
  • legacy /dashboard/coverage?languageIds=529,21028 carries canonical languageId=529%2C21028
  • clearing English rewrites to /dashboard/coverage, then Jobs -> Report stays query-free
  • agent-browser errors returned no page errors; console output was limited to Next/React dev HMR messages

Post-Deploy Monitoring & Validation

• What to monitor/search
  • Logs: search Manager web logs for GET /dashboard/coverage, GET /dashboard/jobs, GET /dashboard/agents, and unexpected /login redirects during dashboard tab navigation.
  • Metrics/Dashboards: standard Manager app request/error dashboard for 4xx/5xx changes on dashboard routes.
• Validation checks
  • Open /dashboard/coverage?languageId=529, click Jobs, click Report, and confirm the browser URL remains /dashboard/coverage?languageId=529.
  • Open /dashboard/coverage?languageIds=529,21028, click Jobs, and confirm the browser URL uses languageId=529%2C21028.
  • Remove the selected language and confirm Jobs -> Report returns to /dashboard/coverage with no language query.
• Expected healthy behavior
  • Dashboard tab links carry only canonical Report language query state.
  • Direct /dashboard/coverage remains the default language-first Report state.
• Failure signals / rollback trigger
  • Operators report losing Report language context after Jobs/Agents navigation.
  • Dashboard tab navigation starts carrying unrelated Jobs/Agents query keys into Report.
  • Unexpected redirect loops or elevated 4xx/5xx on /dashboard/* routes after deploy.
• Validation window & owner
  • Window: first production verification pass after deploy, then normal Manager monitoring for 24 hours.
  • Owner: Manager dashboard deploy owner.

Notes

• Plan: docs/plans/2026-04-13-fix-manager-report-filter-restoration-plan.md
• Compound doc: docs/solutions/ui-bugs/manager-report-filter-dashboard-tab-handoff-20260413.md
• Local smoke screenshots captured under output/playwright/report-filter-smoke/ during validation.

[railway-app]

🚅 Deployed to the forge-pr-751 environment in forge

Service	Status	Web	Updated (UTC)
@forge/manager	✅ Success (View Logs)		Apr 13, 2026 at 4:43 pm
@forge/cms	✅ Success (View Logs)		Apr 13, 2026 at 4:42 pm

1 service not affected by this PR

• @forge/web