docs(05): add INT-03 to Phase 5 requirements

- Update ROADMAP.md to include INT-03 (configurable intermediate path)
- Update 05-01 plan description to reflect INT-03 coverage

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.planning/ROADMAP.md

@@ -53,7 +53,7 @@ Plans:
 #### Phase 5: 归档与目录优化
 **Goal**: 统一中间目录结构，添加自动归档步骤，优化最终目录布局
 **Depends on**: Phase 4
-**Requirements**: INT-01, INT-02, ARC-01, ARC-02, ARC-03, ARC-04, OUT-01, OUT-02, OUT-03, OUT-04
+**Requirements**: INT-01, INT-02, INT-03, ARC-01, ARC-02, ARC-03, ARC-04, OUT-01, OUT-02, OUT-03, OUT-04
 **Success Criteria** (what must be TRUE):
   1. 所有分析任务的中间文件统一存放在 `~/work/intermediate/analysis/{platform}_{content_id}/`
   2. 分析完成后 md 文件自动复制到按平台分组的最终目录
@@ -63,7 +63,7 @@ Plans:
 **Plans**: 3 plans
 
 Plans:
-- [ ] 05-01-PLAN.md — 中间目录统一 (INT-01, INT-02)
+- [ ] 05-01-PLAN.md — 中间目录统一和配置 (INT-01, INT-02, INT-03)
 - [ ] 05-02-PLAN.md — ArchiveProcessor 归档处理器 (ARC-01, ARC-02, ARC-03, ARC-04)
 - [ ] 05-03-PLAN.md — 最终目录结构验证和测试 (OUT-01, OUT-02, OUT-03, OUT-04)