Initial release: MeshCore Stats monitoring system

A Python-based monitoring system for MeshCore LoRa mesh networks.
Collects metrics from companion and repeater nodes, stores them in
a SQLite database, and generates a static website with interactive
SVG charts and statistics.

Features:
- Data collection from local companion and remote repeater nodes
- SQLite database with EAV schema for flexible metric storage
- Interactive SVG chart generation with matplotlib
- Static HTML site with day/week/month/year views
- Monthly and yearly statistics reports (HTML, TXT, JSON)
- Light and dark theme support
- Circuit breaker for unreliable LoRa connections
- Battery percentage calculation from 18650 discharge curves
- Automated releases via release-please

Live demo: https://meshcore.jorijn.com

scripts/render_site.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+"""
+Phase 3: Render static HTML site.
+
+Generates static HTML pages using latest metrics from SQLite database
+and rendered charts. Creates day/week/month/year pages for both
+companion and repeater nodes.
+"""
+
+import sys
+from pathlib import Path
+
+# Add src to path for imports
+sys.path.insert(0, str(Path(__file__).parent.parent / "src"))
+
+from meshmon.db import init_db, get_latest_metrics
+from meshmon.env import get_config
+from meshmon import log
+from meshmon.html import write_site
+
+
+def main():
+    """Render static site."""
+    # Ensure database is initialized
+    init_db()
+
+    cfg = get_config()
+
+    log.info("Rendering static site...")
+
+    # Load latest metrics from database
+    companion_row = get_latest_metrics("companion")
+    if companion_row:
+        log.debug(f"Loaded companion metrics (ts={companion_row.get('ts')})")
+    else:
+        log.warn("No companion metrics found in database")
+
+    repeater_row = get_latest_metrics("repeater")
+    if repeater_row:
+        log.debug(f"Loaded repeater metrics (ts={repeater_row.get('ts')})")
+    else:
+        log.warn("No repeater metrics found in database")
+
+    # Write site
+    pages = write_site(companion_row, repeater_row)
+
+    log.info(f"Wrote {len(pages)} pages to {cfg.out_dir}")
+    log.info("Site rendering complete")
+
+
+if __name__ == "__main__":
+    main()