docs: correct doc-vs-code drift across the canonical docs

A documentation audit against the code surfaced several stale claims:

- Agent count: the roster is 19 AI agents (the UX/UI cell has two devs,
  ux-dev-1 + ux-dev-2), not 18 / a single UX dev. Fixed in README,
  CLAUDE.md, base.md, and docs/ux_ui.
- API: domain routes are mounted under /api, not /api/v1 (the /api/v1
  prefix is the agent gateway only); dropped the non-existent /api/v1/test
  group; fixed the orchestrator-status path in deployment.md.
- Quick Start uvicorn target is roboco.api.app:app (the api package
  deliberately does not export app).
- Verb table: the developer PR verb is open_pr (renamed from
  submit_for_qa); the lifecycle's canonical module is
  foundation/policy/lifecycle.py (enforcement/task_lifecycle.py is a shim).
- Backend team stack: vector store is PostgreSQL + pgvector (via piragi),
  not Qdrant; mypy targets roboco/, not src/.
- .env.example: replaced the phantom Qdrant/OpenAI blocks with the real
  Ollama/RAG settings.

.env.example

@@ -65,15 +65,13 @@ ROBOCO_REDIS_DB=0
 # ROBOCO_REDIS_PASSWORD=
 
 # =============================================================================
-# Qdrant (Vector DB) - Optional
-# =============================================================================
-ROBOCO_QDRANT_HOST=localhost
-ROBOCO_QDRANT_PORT=6333
-# ROBOCO_QDRANT_API_KEY=
-
-# =============================================================================
-# OpenAI (optional, for embeddings)
+# RAG / Local LLM (Ollama + pgvector via piragi)
 # =============================================================================
+# For docker compose use the container name (roboco-ollama); locally, localhost.
+ROBOCO_OLLAMA_BASE_URL=http://localhost:11434
+ROBOCO_LOCAL_LLM_BASE_URL=http://localhost:11434/v1
+ROBOCO_LOCAL_LLM_MODEL=glm-5:cloud
+ROBOCO_DEFAULT_EMBEDDING_MODEL=qwen3-embedding:0.6b
 
 # =============================================================================
 # Security