docs: update roadmap and todo with dashboard v2 features

ROADMAP.md

@@ -291,12 +291,21 @@ PPF (Proxy Fetcher) is a Python 2 proxy scraping and validation framework design
 ### Web Dashboard (Done)
 - [x] /dashboard endpoint with dark theme HTML UI
 - [x] /api/stats endpoint for JSON runtime statistics
-- [x] Auto-refresh with JavaScript fetch every 5 seconds
+- [x] Auto-refresh with JavaScript fetch every 3 seconds
 - [x] Stats provider callback from proxywatchd.py to httpd.py
 - [x] Displays: tested/passed/success rate, thread count, uptime
 - [x] Tor pool health: per-host latency, success rate, availability
 - [x] Failure categories breakdown: timeout, proxy, ssl, closed
 
+### Dashboard Enhancements v2 (Done)
+- [x] Prominent check type badge in header (SSL/JUDGES/HTTP/IRC)
+- [x] System monitor bar: load, memory, disk, process RSS
+- [x] Anonymity breakdown: elite/anonymous/transparent counts
+- [x] Database health: size, tested/hour, added/day, dead count
+- [x] Enhanced Tor pool stats: requests, success rate, healthy nodes, latency
+- [x] SQLite ANALYZE/VACUUM functions for query optimization
+- [x] Lightweight design: client-side polling, minimal DOM updates
+
 ---
 
 ## Technical Debt

TODO.md

@@ -239,6 +239,52 @@ if __name__ == '__main__':
 - Failure categories: timeout, proxy, ssl, closed, etc.
 - proxywatchd.py: get_runtime_stats() method provides stats callback
 
+### [x] 21. Dashboard Enhancements (v2)
+
+**Completed.** Major dashboard improvements for better visibility.
+- Prominent check type badge in header (SSL/JUDGES/HTTP/IRC with color coding)
+- System monitor bar: load average, memory usage, disk usage, process RSS
+- Anonymity breakdown: elite/anonymous/transparent proxy counts
+- Database health indicators: size, tested/hour, added/day, dead count
+- Enhanced Tor pool: total requests, success rate, healthy nodes, avg latency
+- SQLite ANALYZE/VACUUM functions for query optimization (dbs.py)
+- Database statistics API (get_database_stats())
+
+---
+
+## Potential Dashboard Improvements
+
+### [ ] Dashboard Performance Optimizations
+
+**Goal:** Ensure dashboard remains lightweight and doesn't impact system performance.
+
+**Current safeguards:**
+- No polling on server side (client-initiated via fetch)
+- 3-second refresh interval (configurable)
+- Minimal DOM updates (targeted element updates, not full re-render)
+- Static CSS/JS (no server-side templating per request)
+- No persistent connections (stateless HTTP)
+
+**Future considerations:**
+- [ ] Add rate limiting on /api/stats endpoint
+- [ ] Cache expensive DB queries (top countries, protocol breakdown)
+- [ ] Lazy-load historical data (only when scrolled into view)
+- [ ] WebSocket option for push updates (reduce polling overhead)
+- [ ] Configurable refresh interval via URL param or localStorage
+- [ ] Disable auto-refresh when tab not visible (Page Visibility API)
+
+### [ ] Dashboard Feature Ideas
+
+**Low priority - consider when time permits:**
+- [ ] Dark/light theme toggle
+- [ ] Export stats as CSV/JSON from dashboard
+- [ ] Historical graphs (24h, 7d) using stats_history table
+- [ ] Per-ASN performance analysis
+- [ ] Geographic map visualization (requires JS library)
+- [ ] Alert thresholds (success rate < X%, MITM detected)
+- [ ] Mobile-responsive improvements
+- [ ] Keyboard shortcuts (r=refresh, t=toggle sections)
+
 ---
 
 ## Completed