feat: virtual company M2 control + tier-3/4 capabilities + per-dept session fix
- M2-a/b/c: stop/pause/resume/skip dept, plan/rework approval gates,
budget & timeout circuit breakers, per-dept cancel and on-demand rework
- tier-3: batched event persistence (_EventBuffer), project/dept
concurrency semaphores, company_ws event streaming
- tier-4: cross-dept deliverable handoff, CEO memory feedback loop,
per-dept model override, one-click Markdown report export (RFC5987)
- fix: per-department independent SQLAlchemy session in parallel waves
(shared Session race across asyncio tasks in company_orchestrator)
- fix: rename process_open_fds gauge to app_process_open_fds
(collides with prometheus_client ProcessCollector on Linux)
- fix: dept role resolution ladder, real token usage & cost tracking,
deliverable file capture (mtime scan of dept workspace)
- tests: test_company_orchestrator.py 22 cases with mocked LLM
- frontend: CompanyControlRoom, companyExecution store, EChart,
dept model config dialog, ws proxy, build/typecheck decoupling
- docs: virtual company design/usage docs, M2 control plan,
deepseek4pro handover docs
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
renjianbo
495eafcd78