diff --git a/.a0/current_status.md b/.a0/current_status.md
index f22d9f7..91b2d33 100644
--- a/.a0/current_status.md
+++ b/.a0/current_status.md
@@ -1,15 +1,16 @@
 # Current Status — LeoCRM
 
 **Phase**: 3 — Implementation
-**Status**: T03 COMPLETE — 103/103 tests pass, 85.92% plugin coverage
-**Commit**: 7a5a48f (pushed to Forgejo)
-**Date**: 2026-06-29 01:20 CEST
+**Status**: T09 COMPLETE — 238/238 tests pass, 84.12% T09 coverage
+**Commit**: 14bd4e3 (pushed to Forgejo)
+**Date**: 2026-06-29 02:46 CEST
 
 ## Completed Tasks
 - T01 ✅ Core Infrastructure + Auth (29 tests)
 - T02 ✅ Companies + Contacts + Import/Export (27 tests)
 - T03 ✅ Plugin System Framework (47 tests)
+- T09 ✅ KI-Copilot API + Workflow Engine (135 tests: 30 AC + 105 coverage)
 
 ## Next Action
-- Delegate T07a (Frontend SPA Shell) + T09 (KI-Copilot API) in parallel
-- Awaiting user approval
+- Delegate T07a (Frontend SPA Shell — React 18 + Vite + TypeScript)
+- T07a briefing ready at .a0/briefings/T07a_briefing.md
diff --git a/.a0/next_steps.md b/.a0/next_steps.md
index ccc46cf..29c16a2 100644
--- a/.a0/next_steps.md
+++ b/.a0/next_steps.md
@@ -1,26 +1,21 @@
 # Next Steps — LeoCRM
 
-## Current: T03 COMPLETE ✅ (commit 7a5a48f, pushed)
+## Current: T09 COMPLETE ✅ (commit 14bd4e3, pushed)
 
 ## 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 ∥ T09 (Parallel)
-### T07a — Frontend SPA Shell
+## Next: T07a — Frontend SPA Shell
 - Deps: T01 ✅
 - Reqs: 23 features, 27 ACs
-- Vue 3 + Vite + Pinia + Vue Router + TailwindCSS
-- Auth flow, layout, navigation, dashboard, settings
+- Stack: React 18 + Vite + TypeScript + React Router v6 + TanStack Query v5 + Zustand + react-i18next + Tailwind CSS + Vitest
+- Briefing ready: .a0/briefings/T07a_briefing.md
 
-### T09 — KI-Copilot API + Hybrid Workflow Engine Backend
-- Deps: T01 ✅, T02 ✅
-- Reqs: 5 features, 22 ACs
-- LLM integration, workflow engine, task automation
-
-## After T07a + T09: T07b (Frontend Feature Pages)
+## After T07a: T07b (Frontend Feature Pages)
 ## After T07b: T10 (Monitoring, Performance, Documentation)
 
 ## v1 Execution Order
-T01 ✅ → T02 ✅ → T03 ✅ → (T07a ∥ T09) → T07b → T10
+T01 ✅ → T02 ✅ → T03 ✅ → T09 ✅ → T07a → T07b → T10
diff --git a/.a0/worklog.md b/.a0/worklog.md
index 3d8b4ca..827d80f 100644
--- a/.a0/worklog.md
+++ b/.a0/worklog.md
@@ -34,3 +34,53 @@
 - Pushed to Forgejo: 6bf0746..7a5a48f
 
 ### Next: T07a (Frontend SPA Shell) ∥ T09 (KI-Copilot API) — parallel delegation
+
+## T09 — KI-Copilot API + Hybrid Workflow Engine Backend — COMPLETE ✅
+**Date**: 2026-06-29 02:46
+**Commit**: 14bd4e3 (pushed to Forgejo)
+**Tests**: 238/238 full suite pass (30 AC + 105 coverage + 103 existing)
+**Coverage**: 84.12% for T09 modules (target: 80% ✅)
+**Migration**: 0004_ai_workflows.py applied (5 tables with RLS)
+
+### Files Created (24 new)
+- app/models/ai_conversation.py, app/models/workflow.py
+- app/schemas/ai_copilot.py, app/schemas/workflow.py
+- app/ai/__init__.py, app/ai/llm_client.py, app/ai/action_mapper.py
+- app/services/ai_copilot_service.py (~500 lines), app/services/workflow_service.py (~675 lines)
+- app/routes/ai_copilot.py, app/routes/workflows.py
+- app/workflows/__init__.py, app/workflows/engine.py
+- app/workflows/code/__init__.py, app/workflows/code/onboarding.py
+- alembic/versions/0004_ai_workflows.py
+- tests/test_ai_copilot.py (67 tests), tests/test_workflows.py (68 tests)
+- test_report.md
+
+### Files Modified (7)
+- app/models/__init__.py, app/routes/__init__.py, app/schemas/__init__.py, app/services/__init__.py
+- app/main.py (added ai_copilot + workflows routers)
+- tests/conftest.py (added new tables to TRUNCATE + model imports)
+- app/core/event_bus.py (added workflow event handler registration)
+
+### Bugs Fixed
+1. MissingGreenlet on async lazy-load of updated_at/created_at — fixed with _safe_iso() and _get_attr() helpers
+2. _message_to_dict in ai_copilot_service.py — patched by orchestrator (m.created_at.isoformat() → _safe_iso(_get_attr(m, "created_at")))
+
+### Coverage Breakdown
+- app/workflows/engine.py: 0% → 90.00%
+- app/services/ai_copilot_service.py: 38.89% → 98.61%
+- app/ai/action_mapper.py: 43.44% → 96.72%
+- app/ai/llm_client.py: 64.62% → 81.54%
+- app/services/workflow_service.py: 62.54% → 75.95%
+- app/routes/workflows.py: 59.48% → 62.93%
+- app/routes/ai_copilot.py: 65% → 65.00%
+- **Overall: 45.37% → 84.12%** ✅
+
+### Verification (Orchestrator Independent)
+- pytest tests/: 238/238 PASS (zero regressions)
+- Migration 0004 applied via alembic upgrade head
+- RLS policies on all 5 new tables (ai_conversations, ai_messages, workflows, workflow_instances, workflow_step_history)
+- No forbidden patterns (.test TLD, SET LOCAL, raise HTTPException in middleware, POST without status_code)
+- POST action endpoints (query/execute/advance/cancel) correctly use 200 default
+- POST creation endpoints (workflows, instances) correctly use 201
+- Pushed to Forgejo: 7a5a48f..14bd4e3
+
+### Next: T07a (Frontend SPA Shell — React 18)