Docs: update all documentation and add overview

- README: add Frontend section, deploy script, docs links, status
- docs/README.md: new documentation overview (entry points, frontend, deployment)
- docs/EXPLORER_API_ACCESS.md: reference deploy-frontend-to-vmid5000.sh for frontend-only deploy
- docs/INDEX.md: add Frontend & Explorer section, fix Quick Start, Last Updated
- README_DEPLOYMENT: add docs/README, EXPLORER_API_ACCESS, deploy script, deployment guide
- frontend/FRONTEND_REVIEW.md: add post-review update (C1–L4 implemented)

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/INDEX.md

@@ -1,13 +1,24 @@
 # Documentation Index
 
-**Complete Guide to All Bridge System Documentation**
+**Complete Guide to Explorer Monorepo Documentation**
 
 ---
 
 ## 🚀 Quick Start
 
-1. **[Complete Setup Guide](./COMPLETE_SETUP_GUIDE.md)** - Start here for complete setup
-2. **[README Bridge](../README_BRIDGE.md)** - Quick reference at project root
+1. **[../README.md](../README.md)** - Project overview, quick start, frontend deploy
+2. **[EXPLORER_API_ACCESS.md](./EXPLORER_API_ACCESS.md)** - API access, 502 fix, CSP, frontend deploy
+3. **[README Bridge](../README_BRIDGE.md)** - Quick reference at project root
+4. **[Complete Setup Guide](./COMPLETE_SETUP_GUIDE.md)** - Complete setup (if present)
+
+---
+
+## Frontend & Explorer
+
+- **[../frontend/FRONTEND_REVIEW.md](../frontend/FRONTEND_REVIEW.md)** - Frontend code review (SPA + React)
+- **[../frontend/FRONTEND_TASKS_AND_REVIEW.md](../frontend/FRONTEND_TASKS_AND_REVIEW.md)** - Task list (C1–L4) and detail review
+- **Deploy frontend:** From repo root run `./scripts/deploy-frontend-to-vmid5000.sh`
+- **Full fix (API + frontend):** `./scripts/complete-explorer-api-access.sh`
 
 ---
 
@@ -186,5 +197,5 @@
 
 ---
 
-**Last Updated**: $(date)
+**Last Updated:** 2025-02-09