Initial commit: BOM Local Radar Card

- Custom Home Assistant card for displaying BOM radar data
- Docker-based build system (no local Node.js required)
- Test environment with Home Assistant and BOM service
- TypeScript source with LitElement framework
- HACS integration ready

.gitignore

@@ -0,0 +1,23 @@
+# Dependencies
+node_modules/
+
+# Build outputs
+dist/
+*.js.map
+
+# Environment files
+.env
+.env.local
+
+# OS files
+.DS_Store
+*.log
+
+# Docker Compose override files (generated by test script)
+docker-compose.test.local.yml
+
+# Test Home Assistant instance - entire directory is test-only
+test-ha/
+
+# Docker build cache
+.docker/