[INIT-001] Initial project setup with Clean Architecture (feat)

- Implemented Clean Architecture with Domain, Application, Infrastructure, Presentation layers
- Added comprehensive project structure following SOLID principles
- Created Kubernetes deployment with Helm charts (HPA, PDB, NetworkPolicy)
- Configured ArgoCD for automated deployment (production + staging)
- Implemented CI/CD pipeline with GitHub Actions
- Added comprehensive documentation (handbook, architecture, coding standards)
- Configured PostgreSQL, Redis, Celery for backend services
- Created modern landing page with Persian fonts (Vazirmatn)
- Added Docker multi-stage build for production
- Configured development tools (pytest, black, flake8, mypy, isort)
- Added pre-commit hooks for code quality
- Implemented Makefile for common operations

Dockerfile

@@ -0,0 +1,71 @@
+# Peikarband Platform - Production Dockerfile
+# Multi-stage build for optimized image size
+
+# Stage 1: Builder
+FROM python:3.11-slim as builder
+
+WORKDIR /build
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y \
+    gcc \
+    g++ \
+    curl \
+    gnupg \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Node.js (required for Reflex)
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
+    && apt-get install -y nodejs \
+    && 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
+
+# Copy application code
+COPY . .
+
+# Initialize and build Reflex app
+RUN python -m reflex init --template blank && \
+    python -m reflex export --frontend-only --no-zip
+
+# Stage 2: Runtime
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y \
+    postgresql-client \
+    curl \
+    nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy Python dependencies from builder
+COPY --from=builder /root/.local /root/.local
+
+# Copy application and built assets
+COPY --from=builder /build /app
+
+# Create non-root user
+RUN useradd -m -u 1000 peikarband && \
+    chown -R peikarband:peikarband /app
+
+# Set environment variables
+ENV PATH=/root/.local/bin:$PATH \
+    PYTHONUNBUFFERED=1 \
+    REFLEX_ENV=production
+
+USER peikarband
+
+# Expose ports (backend: 8000, frontend: 3000)
+EXPOSE 3000 8000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+    CMD curl -f http://localhost:8000/ping || exit 1
+
+# Run application
+CMD ["python", "-m", "reflex", "run", "--env", "production", "--backend-only"]
+