feat(rag): harden post-LightRAG runtime

Retire legacy OCR/media/evidence fallbacks, add local-folder event bus and Page Aggregate guards, and archive completed design checklists. Validation: cargo test -p mnote-web -- --test-threads=1; cargo test --workspace -- --test-threads=1; git diff --check; codegraph sync .; codegraph_status.
2026-06-07 10:35:21 +08:00
parent 22a92edcda
commit 9551d4c1dc
59 changed files with 4053 additions and 5249 deletions
@@ -6,6 +6,8 @@
 > - `process/`：已废弃，但属于历史上的草稿、方案、spike、路线稿
 > - `done/`：已废弃，但属于历史上的定稿、审计、报告、边界说明
 >
+> 任务源规则：`design/old/**/process/` 不作为 active 任务源。worker 只能在用户明确要求“历史审计 / 迁移对照 / recycle 复盘”时读取这些文件；默认不得从 old/process 的 `[ ]` checklist 继续派活。
+>
 > 大类说明：
 > - `01-tree-first-graph-kernel/`：已被新清单替代的旧内核稿
 > - `03-rust-web/`：已被新清单替代的旧 Rust Web 稿