T-800 Agent v1.21.4 — P1–P2 upgrade

Summary

Линейка 1.21.0 → 1.21.4 (поэтапно с тестами):

1. 1.21.0 Cloud hooks matrix + smoke (Cursor 3.11 conversation hooks)
2. 1.21.1 KPI telemetry (duration_ms / tokens / retries + --summarize)
3. 1.21.2 Router Cost/Balance/Intelligence policy для DEEP
4. 1.21.3 Prompt-eval gate (3 behavioral surfaces)
5. 1.21.4 Side chats / Slack / async operator docs

Tests

• tests/test_cloud_hooks_smoke.py
• tests/test_telemetry_kpi.py
• tests/test_router_policy_note.py
• tests/test_prompt_eval_gate.py
• tests/test_operator_docs_gate.py
• verify-install + agents_mirror + golden

After install

Reload Window.