feat: local LLM multi-model, session search, cron proactive types, notifications, docs overhaul

Local LLM:
- user_settings.py: per-user hosts/models config (local_llm.json)
- routers/local_llm.py + static/local_llm.html: dedicated settings page
- llm_client.py: local OpenAI-compatible backend via httpx
- config.py: LOCAL_API_URL/KEY/MODEL + per-backend timeouts
- Active model shown near backend toggle (amber hint text)

Memory distillation:
- memory_distiller.py: DISTILL_BACKEND_MID/LONG .env overrides
- scheduler.py + notification.py: notify NC Talk after mid/long distill
- notification.py: outbound channel abstraction (NC Talk, extensible)

Session search:
- routers/files.py: GET /sessions/search?q= with excerpts grouped by date
- static/index.html + app.js: search UI in file sidebar with highlight
- _esc() helper to prevent XSS in search results

Proactive cron:
- cron_runner.py: new job types — message (send directly) and brief (LLM + send)
- Both support optional per-job channel override

Channels:
- routers/nextcloud_talk.py: consolidated using notification._send_nct_message()
- routers/auth.py: local backend status in /auth/status
- routers/chat.py: /backend returns {primary, fallback, local_model} object

UI / UX:
- Copy button for user messages (matching assistant)
- Autocomplete disabled on sensitive form fields
- settings.html: local model section replaced with link to /settings/local

Docs overhaul:
- MASTER.md hub + ARCH__SYSTEM/BACKENDS/PERSONA/CHANNELS/FUTURE.md
- ARCH__Intelligence_Layer.md replaced with redirect table
- CORTEX.md trimmed to vision only; README updated
- OPEN_WEBUI_API.md added to docs/

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -82,6 +82,7 @@ Cortex_and_Inara_dev/
 
   docs/                  ← Integration reference docs
     NEXTCLOUD_TALK_BOT.md
+    OPEN_WEBUI_API.md    ← Open WebUI API: tool calling, RAG, model management
 
   documentation/         ← Architecture decisions and agent task list
     TODO__Agents.md      ← READ THIS FIRST — active task list
@@ -211,7 +212,7 @@ clearly asked for a directory to be unblocked.
 
 ---
 
-## Current State (2026-03-27)
+## Current State (2026-04-03)
 
 Cortex is running and stable. All three primary channels are live:
 
@@ -220,34 +221,12 @@ Cortex is running and stable. All three primary channels are live:
 | Web UI | ✅ Live | `https://cortex.dgrzone.com` |
 | Nextcloud Talk | ✅ Live | HMAC-signed webhook, async reply |
 | Google Chat | ✅ Live | Workspace Add-on, `hostAppDataAction` response format |
+| Local backend | ✅ Live | Open WebUI/Ollama, per-user multi-model config |
 
-### Active Tasks
+Active users: scott (inara, developer), holly (tina), brian (wintermute)
 
-See `documentation/TODO__Agents.md` for the full list. Current priorities:
-
-- **[High]** Ollama backend — local LLM via `scott_gaming` over WireGuard
-- **[Medium]** NC Talk — complete bot registration docs (`docs/NEXTCLOUD_TALK_BOT.md`)
-- **[Medium]** Knowledge consolidation — markdown → AE Journals
-
-### Recently Completed
-
-- ✅ Help & Reference shared base — `cortex/static/HELP.md` served to all users; persona-specific additions appended if present — 2026-03-27
-- ✅ Google OAuth sign-in — `/auth/google` flow, pre-register via `manage_passwords.py google-add` — 2026-03-27
-- ✅ Per-user Gemini API key — stored in `auth.json`, used by orchestrator, manageable in `/settings` — 2026-03-27
-- ✅ Connected accounts + Gemini key in settings UI — `/settings` shows Google account, key hint, remove link — 2026-03-27
-- ✅ `/{username}` persona picker page — card grid instead of 404 — 2026-03-26
-- ✅ Session persistence across navigation — localStorage TTL 30 min, auto-restore on page load — 2026-03-26
-- ✅ Lucide icons throughout UI — mode selector, send/stop/action buttons, edit/del/copy/save/cancel — 2026-03-25
-- ✅ Persona-specific favicon — emoji SVG set from persona config — 2026-03-25
-- ✅ Session auth — bcrypt passwords, JWT cookies, login/logout, `SessionAuthMiddleware` — 2026-03-20
-- ✅ Persona onboarding — invite tokens, self-service password setup, persona creation form — 2026-03-20
-- ✅ Multi-user/multi-persona support (`home/{username}/persona/{name}/` two-level layout) — 2026-03-20
-- ✅ SMTP invite email — `noreply@oneskyit.com`, HTML + plain text, `manage_passwords.py invite` — 2026-03-20
-- ✅ Scratchpad, task management, and cron/scheduled job tools — 2026-03-20
-- ✅ Test suite (80 tests) covering API, persona routing, tools, security — 2026-03-20
-- ✅ Google Chat bot (Workspace Add-on, JWT auth, `hostAppDataAction` format) — 2026-03-20
-- ✅ Orchestrator Agent mode UI + session persistence — 2026-03-18
-- ✅ Memory distiller (APScheduler, short/mid/long) — 2026-03
+See `documentation/TODO__Agents.md` for the active task list.
+See `documentation/ROADMAP.md` for phases and what's next.
 
 ---
 
@@ -255,8 +234,14 @@ See `documentation/TODO__Agents.md` for the full list. Current priorities:
 
 | File | Purpose |
 |---|---|
+| `documentation/MASTER.md` | **Start here** — index, current state, all doc links |
 | `documentation/TODO__Agents.md` | Active task list — read before starting work |
-| `documentation/ARCH__Intelligence_Layer.md` | Full architecture design |
-| `~/agents_sync/projects/CORTEX.md` | High-level project vision and phases |
+| `documentation/ROADMAP.md` | Phases — what's done, what's next |
+| `documentation/ARCH__SYSTEM.md` | System architecture and component map |
+| `documentation/ARCH__BACKENDS.md` | LLM backends, routing, per-user config |
+| `documentation/ARCH__PERSONA.md` | Persona system, context tiers, memory distillation |
+| `documentation/ARCH__CHANNELS.md` | Input channels — web, NC Talk, Google Chat, cron |
+| `documentation/ARCH__FUTURE.md` | Planned: local orchestrator, dev agents, knowledge layer |
+| `~/agents_sync/projects/CORTEX.md` | Project vision and philosophy |
 | `~/agents_sync/CLAUDE.md` | Fleet coordination rules |
 | `~/CLAUDE.md` | Machine identity (`scott_lpt`) |