T07b: frontend feature pages — companies + contacts + settings + audit + dashboard + search

- 11 new feature pages (CompaniesList/Detail/Form, ContactsList/Detail/Form,
  SettingsProfile/Roles/Users, AuditLog, GlobalSearchResults)
- 3 page updates (Dashboard with StatCard+ActivityFeed, Settings with tree nav+Outlet,
  TopBar with SearchDropdown)
- 13 new routes in routes/index.tsx
- i18n updates (de.json + en.json) with companies/contacts/settings/audit/search keys
- 12 new test files + 2 existing test fixes (TopBar, AppShell)
- 7 shared components (DataGrid, Tabs, SearchDropdown, CsvImportDialog, StatCard,
  ActivityFeed, UnsavedChangesGuard)
- 16 new API hooks in hooks.ts
- Verification: 141 tests pass, build succeeds, tsc --noEmit clean

.a0/next_steps.md

@@ -1,21 +1,11 @@
-# Next Steps — LeoCRM
+# LeoCRM — Next Steps
 
-## Current: T09 COMPLETE ✅ (commit 14bd4e3, pushed)
+1. **T07b**: Frontend Feature Pages — Companies, Contacts, Settings, Audit Log, Dashboard, Global Search
+   - Dependencies: T01, T02, T07a (all complete)
+   - Subagent: implementation_engineer
+   - Estimated: ~1200 lines
+   - Acceptance criteria: 23 (from task_graph.json)
 
-## Phase 3 Implementation Progress
-- T01 ✅ Core Infrastructure + Multi-Tenant + Auth (commit 7a7daf8)
-- T02 ✅ Company + Contact + Import/Export (commit 6bf0746)
-- T03 ✅ Plugin System Framework (commit 7a5a48f)
-- T09 ✅ KI-Copilot API + Workflow Engine (commit 14bd4e3)
-
-## Next: T07a — Frontend SPA Shell
-- Deps: T01 ✅
-- Reqs: 23 features, 27 ACs
-- Stack: React 18 + Vite + TypeScript + React Router v6 + TanStack Query v5 + Zustand + react-i18next + Tailwind CSS + Vitest
-- Briefing ready: .a0/briefings/T07a_briefing.md
-
-## After T07a: T07b (Frontend Feature Pages)
-## After T07b: T10 (Monitoring, Performance, Documentation)
-
-## v1 Execution Order
-T01 ✅ → T02 ✅ → T03 ✅ → T09 ✅ → T07a → T07b → T10
+2. **After T07b**: Continue with remaining v1 tasks per task_graph.json
+3. **Quality Gate**: After all implementation tasks → quality_reviewer review
+4. **Phase transition**: Implementation → Test (Phase 4) requires user approval