docs: git-workflow v1.1 与 CODEOWNERS 规范

- git-workflow.md v1.1: scope-enum 对齐实际服务名（identity→iam 等）
- git-workflow.md: 新增 §4.7 模块 Owner 与 CODEOWNERS 章节
- git-workflow.md: husky hooks 与实际文件对齐，新增 pre-push 说明
- .github/CODEOWNERS: 定义各模块 owner team 与 PR 合并职责
- .github/pull_request_template.md: PR 模板

.github/CODEOWNERS

@@ -0,0 +1,80 @@
+# Edu 平台 CODEOWNERS
+# 格式：路径  @owner
+# 作用：GitHub/Gitea 自动为 PR 分配 reviewer
+# 维护规则：
+#   1. 新增服务/包时，必须同步更新本文件
+#   2. owner 变更需开独立 PR，由架构组审批
+#   3. 与 docs/standards/git-workflow.md §4.7 保持同步
+# Team handle 占位符：@edu-platform/* 需在 Organization 中创建对应 team 后替换
+
+# ===== 架构与规则（架构组，2 人 review）=====
+/.trae/                    @edu-platform/arch
+/docs/architecture/        @edu-platform/arch
+/docs/standards/           @edu-platform/arch
+/scripts/arch-scan/        @edu-platform/arch
+
+# ===== 根配置（架构组，2 人 review，影响全局）=====
+/.commitlintrc.js          @edu-platform/arch
+/lint-staged.config.js     @edu-platform/arch
+/package.json              @edu-platform/arch
+/pnpm-workspace.yaml       @edu-platform/arch
+/go.work                   @edu-platform/arch
+/pyproject.toml            @edu-platform/arch
+/tsconfig.base.json        @edu-platform/arch
+
+# ===== 共享包（架构组，2 人 review，契约变更影响所有服务）=====
+/packages/shared-proto/    @edu-platform/arch
+/packages/shared-ts/       @edu-platform/arch
+/packages/shared-go/       @edu-platform/arch
+/packages/shared-py/       @edu-platform/arch
+/packages/shared-tokens/   @edu-platform/arch
+
+# ===== 网关层（Go）=====
+/services/api-gateway/     @edu-platform/gateway
+/services/push-gateway/    @edu-platform/gateway
+
+# ===== 业务微服务 =====
+# IAM（核心模块，2 人 review）
+/services/iam/             @edu-platform/iam
+# 教学核心
+/services/core-edu/        @edu-platform/edu-core
+/services/classes/         @edu-platform/edu-core
+# 内容资源
+/services/content/         @edu-platform/content
+# 消息通知
+/services/msg/             @edu-platform/messaging
+# 数据分析（Python）
+/services/data-ana/        @edu-platform/data
+# AI 网关（Python）
+/services/ai/              @edu-platform/ai
+
+# ===== BFF 聚合层（NestJS）=====
+/services/teacher-bff/     @edu-platform/edu-core
+/services/student-bff/     @edu-platform/edu-core
+/services/parent-bff/      @edu-platform/edu-core
+
+# ===== 微前端（Next.js）=====
+/apps/teacher-portal/      @edu-platform/frontend
+/apps/student-portal/      @edu-platform/frontend
+/apps/parent-portal/       @edu-platform/frontend
+/apps/admin-portal/        @edu-platform/frontend
+
+# ===== 基础设施（SRE，2 人 review，生产环境变更强制）=====
+/infra/k8s/                @edu-platform/sre
+/infra/backup/             @edu-platform/sre
+/infra/security/           @edu-platform/sre
+/infra/monitoring/         @edu-platform/sre
+/infra/docker-compose*.yml @edu-platform/sre
+
+# ===== CI/CD（SRE）=====
+/.github/                  @edu-platform/sre
+/.husky/                   @edu-platform/sre
+
+# ===== 文档（架构组）=====
+/docs/troubleshooting/     @edu-platform/arch
+/MIGRATION_GUIDE.md        @edu-platform/arch
+/README.md                 @edu-platform/arch
+/CHANGELOG.md              @edu-platform/arch
+
+# ===== 兜底（未匹配的文件由架构组 review）=====
+*                          @edu-platform/arch