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/build-iso/SKILL.md

@@ -0,0 +1,28 @@
+---
+name: build-iso
+description: Build a new Archipelago auto-installer ISO image
+disable-model-invocation: true
+allowed-tools: Bash, Read
+---
+
+Build a new Archipelago auto-installer ISO.
+
+## Pre-build checklist
+
+1. Latest code deployed to server (`/deploy` first)
+2. System configs synced (`/sync-configs` first)
+3. Everything tested and working on live server
+
+## Build (on target server — recommended)
+
+```bash
+sshpass -p 'EwPDR8q45l0Upx@' ssh -o StrictHostKeyChecking=no archipelago@192.168.1.228 'cd ~/archy/image-recipe && sudo ./build-auto-installer-iso.sh'
+```
+
+## Copy ISO back to Mac
+
+```bash
+sshpass -p 'EwPDR8q45l0Upx@' scp -o StrictHostKeyChecking=no archipelago@192.168.1.228:~/archy/image-recipe/results/archipelago-auto-installer-*.iso .
+```
+
+**IMPORTANT**: Use `build-auto-installer-iso.sh` only. The deprecated `build-debian-iso.sh` causes boot-to-prompt issues.