Initial commit: Northern Thailand Ping River Monitor v3.1.0

Features:
- Real-time water level monitoring for Ping River Basin (16 stations)
- Coverage from Chiang Dao to Nakhon Sawan in Northern Thailand
- FastAPI web interface with interactive dashboard and station management
- Multi-database support (SQLite, MySQL, PostgreSQL, InfluxDB, VictoriaMetrics)
- Comprehensive monitoring with health checks and metrics collection
- Docker deployment with Grafana integration
- Production-ready architecture with enterprise-grade observability

 CI/CD & Automation:
- Complete Gitea Actions workflows for CI/CD, security, and releases
- Multi-Python version testing (3.9-3.12)
- Multi-architecture Docker builds (amd64, arm64)
- Daily security scanning and dependency monitoring
- Automated documentation generation
- Performance testing and validation

 Production Ready:
- Type safety with Pydantic models and comprehensive type hints
- Data validation layer with range checking and error handling
- Rate limiting and request tracking for API protection
- Enhanced logging with rotation, colors, and performance metrics
- Station management API for dynamic CRUD operations
- Comprehensive documentation and deployment guides

 Technical Stack:
- Python 3.9+ with FastAPI and Pydantic
- Multi-database architecture with adapter pattern
- Docker containerization with multi-stage builds
- Grafana dashboards for visualization
- Gitea Actions for CI/CD automation
- Enterprise monitoring and alerting

 Ready for deployment to B4L infrastructure!

Dockerfile

@@ -0,0 +1,57 @@
+# Multi-stage Docker build for Northern Thailand Ping River Monitor
+
+# Build stage
+FROM python:3.11-slim as builder
+
+# Set working directory
+WORKDIR /app
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir --user -r requirements.txt
+
+# Production stage
+FROM python:3.11-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y \
+    wget \
+    curl \
+    && rm -rf /var/lib/apt/lists/* \
+    && groupadd -r appuser && useradd -r -g appuser appuser
+
+# Copy Python packages from builder stage
+COPY --from=builder /root/.local /root/.local
+
+# Copy application code
+COPY . .
+
+# Create logs directory and set permissions
+RUN mkdir -p logs && chown -R appuser:appuser /app
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1
+ENV TZ=Asia/Bangkok
+ENV PATH=/root/.local/bin:$PATH
+
+# Switch to non-root user
+USER appuser
+
+# Health check for API mode
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:8000/health', timeout=5)" 2>/dev/null || exit 1
+
+# Expose port for API
+EXPOSE 8000
+
+# Default command
+CMD ["python", "run.py", "--web-api"]