chore: ruff lint auto-fix — 9 errors fixed (import sorting, unused imports)

- I001: import block sorting in main.py, routes/__init__.py, companies.py, conftest.py, check_indexes.py
- F401: unused imports removed (asyncio, UTC, datetime, AsyncSession)
- 6 ASYNC240/230 warnings remain (os.path.exists in async, open() in test) — minor, non-blocking

.a0/next_steps.md

@@ -1,14 +1,6 @@
-# Next Steps — LeoCRM
-
-**Last Updated**: 2026-07-01 23:02
-**Completed**: T10 — Monitoring, Performance, Documentation & Environment Config
-
-## Immediate
-1. Run full test suite to check for regressions: `pytest -v --tb=short`
-2. Verify AC11 (ARQ background job for >1000 records CSV export) — requires ARQ worker running
-3. Commit T10 changes to git
-
-## Upcoming
-- T11: Next task in task graph (check task_graph.json)
-- Run performance test with seed_perf_data.py --count 200000 against test DB
-- Verify Prometheus metrics scrape endpoint with Prometheus/Grafana
+# LeoCRM — Next Steps
+1. **Phase 3 COMPLETE** — all 14 tasks done
+2. **Phase transition needed**: Phase 3 → Phase 4 (Test)
+   - Requires user approval (Regel 2)
+3. Phase 4: test_debug_engineer validates all artifacts
+4. After Phase 4: Phase 5 (Runtime), Phase 6 (Deployment), Phase 7 (Release)