Fix CI failures: remove unicode and fix lean build

- Replace all unicode (emojis, checkmarks, arrows, em-dashes) with ASCII in .claude/ docs
- Comment out OperatingSystemsList route in core.js - breaks lean builds without computers plugin
- Comment out Operating Systems tab in ModelCatalogHub
- TODO: Plugins should dynamically register their settings routes

Fixes #2 CI check failures on wj branch

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.claude/plans/AI-COLLABORATION.md

@@ -371,9 +371,9 @@ curl -X POST $SLACK_WEBHOOK_URL -d '{
 ## Recommended Setup for ShopDB Team
 
 ### Phase 1: Minimal (This Week)
-1. ✅ Create `memory/active_work.md` (5 min)
-2. ✅ Adopt branch naming: `<user>/<ai-tool>/<feature>` (0 min)
-3. ✅ Add AI commit prefix: `[AI: tool] message` (0 min)
+1. [X] Create `memory/active_work.md` (5 min)
+2. [X] Adopt branch naming: `<user>/<ai-tool>/<feature>` (0 min)
+3. [X] Add AI commit prefix: `[AI: tool] message` (0 min)
 
 ### Phase 2: Enhanced (Next Sprint)
 4. Create `.claude/sessions/` with session notes (15 min)