[codex] 后端规范化设计与 PRD/Plan 拆分

[StephenQiu30]

Summary

• 新增 FastAPI 后端结构规范化设计文档
• 补充视频源接入设计模式、全局响应格式、全局异常处理和软件工程约束
• 将设计拆分为 PRD06-08 和 PLAN11-13，并同步 docs 索引

Impact

• 仅文档变更，不修改后端运行代码
• 为后续视频源适配器、全局异常响应和工程治理实施提供 SDD 输入

Validation

• git diff --check
• git status --short --branch

Notes

• 后续实现应继续以 PRD06/07/08 和 PLAN11/12/13 为入口拆分任务。

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 8055e63b-c6cc-4b26-845b-7170f15562f2

📥 Commits

Reviewing files that changed from the base of the PR and between c13e1b8 and 9645497.

📒 Files selected for processing (29)

• .claude/skills/commit/SKILL.md
• .claude/skills/harness-linear-loop/SKILL.md
• .claude/skills/land/SKILL.md
• .claude/skills/land/land_watch.py
• .claude/skills/linear-create-task/SKILL.md
• .claude/skills/openspec-apply-change/SKILL.md
• .claude/skills/openspec-archive-change/SKILL.md
• .claude/skills/openspec-bulk-archive-change/SKILL.md
• .claude/skills/openspec-continue-change/SKILL.md
• .claude/skills/openspec-explore/SKILL.md
• .claude/skills/openspec-ff-change/SKILL.md
• .claude/skills/openspec-new-change/SKILL.md
• .claude/skills/openspec-onboard/SKILL.md
• .claude/skills/openspec-sync-specs/SKILL.md
• .claude/skills/openspec-verify-change/SKILL.md
• .claude/skills/pull/SKILL.md
• .claude/skills/push/SKILL.md
• CLAUDE.md
• WORKFLOW.md
• docs/README.md
• docs/design/02-FastAPI后端结构重设计与规范化方案.md
• docs/plans/11-视频源适配器与注册中心计划.md
• docs/plans/12-全局响应与异常处理计划.md
• docs/plans/13-后端工程规范与架构治理计划.md
• docs/prd/06-视频源接入与适配器扩展.md
• docs/prd/07-全局响应格式与异常处理.md
• docs/prd/08-后端工程规范与架构治理.md
• openspec/config.yaml
• scripts/validate-repository.sh

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/ste-261-minio-artifact-archive

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