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

.gitignore

@@ -0,0 +1,41 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+.venv/
+venv/
+ENV/
+env/
+*.egg-info/
+dist/
+build/
+
+# Environment
+.envrc
+.env
+
+# Data directories (keep structure, ignore content)
+data/snapshots/companion/**/*.json
+data/snapshots/repeater/**/*.json
+data/rrd/*.rrd
+data/state/*
+
+# Generated output (except .htaccess)
+out/*
+!out/.htaccess
+
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+.direnv