chore: 重构 CI/CD 与 Docker 发布流程

将部署链路调整为 CI 构建推送镜像、服务器拉取镜像运行，并拆分/复用 Gitea workflow 与公共准备脚本；同时统一 APP_NAME 与端口变量配置，补充 Docker 与 ESLint 相关配置文件以提升可维护性。

Made-with: Cursor

deploy/docker/Dockerfile

@@ -0,0 +1,30 @@
+FROM node:22-alpine AS base
+WORKDIR /app
+RUN apk add --no-cache libc6-compat openssl
+RUN npm i -g pm2
+
+FROM base AS deps
+COPY package.json yarn.lock ./
+RUN yarn install --frozen-lockfile
+
+FROM deps AS build
+COPY tsconfig.json ./
+COPY prisma ./prisma
+COPY src ./src
+RUN yarn build
+
+FROM base AS runner
+ENV NODE_ENV=production
+WORKDIR /app
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY --from=build /app/dist ./dist
+COPY --from=build /app/prisma ./prisma
+COPY package.json yarn.lock ./
+COPY deploy/docker/app.entrypoint.sh ./app.entrypoint.sh
+COPY deploy/docker/ecosystem.config.cjs ./ecosystem.config.cjs
+
+RUN chmod +x ./app.entrypoint.sh
+
+EXPOSE 3000
+CMD ["./app.entrypoint.sh"]