添加 Dockerfile + Gitea CI（构建镜像→更新yaml→ArgoCD sync）

Dockerfile

@@ -0,0 +1,22 @@
+# Stage 1: Build Vue.js frontend
+FROM node:22-alpine AS frontend-builder
+WORKDIR /build
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+# Stage 2: Runtime
+FROM python:3.12-slim
+WORKDIR /app
+
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY backend/ .
+
+# Copy built frontend (FastAPI serves as static)
+COPY --from=frontend-builder /build/dist/ /app/static/
+
+EXPOSE 8000
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]