docs: update README for current state

- .env location: cortex/.env + cortex/.env.example (not project root)
- Webhook endpoints: per-user /webhook/nextcloud/{username} and /channels/google-chat/{username}
- Personas table: added brian/wintermute and scott/developer
- Docs table: added GOOGLE_CHAT_BOT.md, cortex/static/HELP.md
- Channels section: per-user webhook note + links to setup docs
- User management: added google-add command and channels.json note
- Removed stale Inara/Tina-only framing

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

README.md

@@ -6,7 +6,7 @@
 
 > *"You can't stop the signal."*
 
-Cortex is a self-hosted multi-agent AI platform. It supports multiple users, each with their own named AI persona. Inara (Scott's persona) and Tina (Holly's persona) are the initial instances.
+Cortex is a self-hosted multi-agent AI platform. It supports multiple users, each with their own named AI persona.
 
 ---
 
@@ -16,9 +16,7 @@ Cortex is a self-hosted multi-agent AI platform. It supports multiple users, eac
 |---|---|
 | `cortex/` | FastAPI service — dispatcher, routing, LLM backends, session management |
 | `home/` | User and persona data (`home/{username}/persona/{name}/`) |
-| `home/scott/persona/inara/` | Inara identity, memory, and context files |
-| `home/holly/persona/tina/` | Tina identity, memory, and context files |
-| `docs/` | Integration reference docs (NC Talk bot, etc.) |
+| `docs/` | Integration reference docs (NC Talk bot, Google Chat bot) |
 | `documentation/` | Architecture decisions, project plans, agent task lists |
 
 ---
@@ -69,7 +67,7 @@ http://localhost:8000   (or cortex.dgrzone.com on WireGuard)
 The service starts automatically at boot via `loginctl enable-linger`.
 Service file: `~/.config/systemd/user/cortex.service`
 
-Config lives in `cortex/config.py` and a `.env` file at the project root (not tracked — see `.env.default`).
+Config lives in `cortex/config.py` and `cortex/.env` (not tracked — see `cortex/.env.example`).
 
 ---
 
@@ -79,10 +77,10 @@ Config lives in `cortex/config.py` and a `.env` file at the project root (not tr
 |---|---|
 | `documentation/TODO__Agents.md` | Active task list — read first |
 | `documentation/ARCH__Intelligence_Layer.md` | Intelligence layer architecture (orchestrator, dev agents, knowledge) |
-| `docs/NEXTCLOUD_TALK_BOT.md` | NC Talk bot setup |
-| `home/scott/persona/inara/IDENTITY.md` | Inara persona and identity |
-| `home/scott/persona/inara/HELP.md` | In-app help content (rendered in UI) |
-| `home/scott/persona/inara/PROTOCOLS.md` | Inara behavioral protocols |
+| `docs/NEXTCLOUD_TALK_BOT.md` | NC Talk bot setup and troubleshooting |
+| `docs/GOOGLE_CHAT_BOT.md` | Google Chat Add-on setup and troubleshooting |
+| `cortex/static/HELP.md` | Shared in-app help content (rendered in UI for all users) |
+| `home/scott/persona/inara/PROTOCOLS.md` | Inara behavioral protocols (template for all personas) |
 | `~/agents_sync/projects/CORTEX.md` | High-level project vision and phases |
 
 ---
@@ -93,10 +91,10 @@ Config lives in `cortex/config.py` and a `.env` file at the project root (not tr
 [User / Cron / Webhook]
         ↓
   Cortex Dispatcher  (FastAPI, cortex/)
-    ├─ POST /chat            — direct to LLM (streaming SSE)
-    ├─ POST /orchestrate     — Gemini tool loop → Claude response
-    ├─ POST /webhook/nextcloud  — Nextcloud Talk bot
-    └─ POST /webhook/google     — Google Chat Add-on
+    ├─ POST /chat                          — direct to LLM (streaming SSE)
+    ├─ POST /orchestrate                   — Gemini tool loop → Claude response
+    ├─ POST /webhook/nextcloud/{username}  — Nextcloud Talk bot (per-user)
+    └─ POST /channels/google-chat/{username} — Google Chat Add-on (per-user)
         ↓
   LLM Backend(s)
   • Claude CLI   — primary reasoning, coding, long-context
@@ -111,7 +109,7 @@ See `documentation/ARCH__Intelligence_Layer.md` for the orchestrator/responder a
 
 ---
 
-## Inara / Tina
+## Personas
 
 Each persona has its own identity, memory, and session history.
 They are not tied to a specific LLM model — the name is fixed, the backend varies.
@@ -120,17 +118,23 @@ Context is loaded at request time from `home/{user}/persona/{name}/` via `cortex
 | User | Persona | Description |
 |---|---|---|
 | scott | inara | Scott's primary AI assistant |
+| scott | developer | Scott's dev-focused persona |
 | holly | tina | Holly's primary AI assistant |
+| brian | wintermute | Brian's primary AI assistant |
 
 ---
 
 ## Channels
 
-| Channel | Status | Notes |
+Webhook endpoints are per-user — each user configures their own secrets in `home/{username}/channels.json`.
+
+| Channel | Status | Endpoint |
 |---|---|---|
 | Web UI | Live | `https://cortex.dgrzone.com` — session auth (login form + JWT cookie) |
-| Nextcloud Talk | Live | HMAC-signed webhook, async reply |
-| Google Chat | Live | Workspace Add-on, JWT auth |
+| Nextcloud Talk | Live | `POST /webhook/nextcloud/{username}` — HMAC-signed, async reply |
+| Google Chat | Live | `POST /channels/google-chat/{username}` — Workspace Add-on, JWT auth |
+
+See `docs/NEXTCLOUD_TALK_BOT.md` and `docs/GOOGLE_CHAT_BOT.md` for setup instructions.
 
 ---
 
@@ -142,7 +146,10 @@ cd cortex
 # Create a user directory and send an invite email
 .venv/bin/python manage_passwords.py invite <username> <email>
 
-# List users with password and email status
+# Register a Google account for sign-in (run after user completes onboarding)
+.venv/bin/python manage_passwords.py google-add <username> <email>
+
+# List users with password, Google, and email status
 .venv/bin/python manage_passwords.py list
 
 # Set/check a password directly
@@ -152,6 +159,8 @@ cd cortex
 
 New users receive a link to `/setup/{token}` where they set their own password and create their first persona. Invite tokens expire in 72 hours and are one-time-use.
 
+To enable a channel for a user, create `home/{username}/channels.json` — see the relevant doc in `docs/`.
+
 ---
 
 ## Testing