feat: complete AIUI integration — all 31 overnight tasks

- Protocol: 10 context categories (apps, system, network, bitcoin, media, files, notes, search, ai-local, wallet)
- ContextBroker: real data wiring for all categories with sanitization
- Permissions: user toggles for all categories in Settings
- Nginx: Claude API, OpenRouter, SearXNG proxy pass-through
- Actions: launch-app, search-web, install-app handlers
- Chat.vue: loading state + connection indicator
- Integration test page: test-aiui.html

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

.claude/skills/diagnose/SKILL.md

@@ -0,0 +1,21 @@
+---
+name: diagnose
+description: Run a full diagnostic check on the Archipelago dev server
+allowed-tools: Bash
+---
+
+SSH into the dev server and run a comprehensive diagnostic. Use `sshpass -p 'EwPDR8q45l0Upx@' ssh -o StrictHostKeyChecking=no archipelago@192.168.1.228` for all commands.
+
+## Checks to run
+
+1. **Services**: `systemctl is-active archipelago nginx`
+2. **Backend status**: `sudo systemctl status archipelago --no-pager`
+3. **Containers**: `sudo podman ps -a`
+4. **Backend logs** (last 50): `sudo journalctl -u archipelago -n 50 --no-pager`
+5. **Nginx errors**: `sudo tail -20 /var/log/nginx/error.log`
+6. **RPC test**: `curl -s -X POST http://127.0.0.1:5678/rpc/v1 -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":1,"method":"echo","params":{}}'`
+7. **Tor hostname**: `sudo cat /var/lib/archipelago/tor/hidden_service_archipelago/hostname`
+8. **Disk space**: `df -h /`
+9. **Memory**: `free -h`
+
+Report findings clearly and suggest fixes for any issues found. If $ARGUMENTS is provided, focus the diagnosis on that specific area.