Add complete project structure and all files

backend/Dockerfile

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+# Multi-stage build для минимального размера образа
+FROM python:3.12-alpine AS builder
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PYTHONDONTWRITEBYTECODE=1
+
+WORKDIR /app
+
+# Install build dependencies
+RUN apk add --no-cache --virtual .build-deps \
+    gcc \
+    musl-dev \
+    postgresql-dev \
+    libffi-dev \
+    openssl-dev \
+    cargo \
+    rust
+
+# Copy and install Python dependencies
+COPY requirements.txt .
+RUN pip install --user --no-warn-script-location -r requirements.txt
+
+# Final stage - минимальный образ
+FROM python:3.12-alpine
+
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONPATH=/app \
+    PATH=/root/.local/bin:$PATH
+
+WORKDIR /app
+
+# Install only runtime dependencies
+RUN apk add --no-cache \
+    libpq \
+    openssh-client \
+    curl \
+    git \
+    docker-cli \
+    libstdc++ \
+    tzdata \
+    && mkdir -p /root/.ssh /app/logs \
+    && cp /usr/share/zoneinfo/Asia/Tashkent /etc/localtime \
+    && echo "Asia/Tashkent" > /etc/timezone \
+    && git config --global --add safe.directory /project
+
+# Copy Python dependencies from builder
+COPY --from=builder /root/.local /root/.local
+
+# Copy application code
+COPY app ./app
+COPY migrations ./migrations
+COPY init_admin.py .
+
+# Health check с быстрой проверкой
+HEALTHCHECK --interval=15s --timeout=3s --start-period=10s --retries=2 \
+    CMD curl -f http://localhost:8000/health || exit 1
+
+EXPOSE 8000
+
+# Оптимизированный запуск с preload для быстрого старта
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1", "--limit-concurrency", "100", "--timeout-keep-alive", "30"]