refactor: simplify distillation data layout

README.md

@@ -96,33 +96,27 @@ Schema 位于：
 将待处理的 STEP/STP 文件放入：
 
 ```text
-designir-pipeline/workspace/teacher/inbox/
+designir-pipeline/input/
 ```
 
-完整运行目录：
+蒸馏目录只保留三层：
 
-| 阶段 | 路径 |
-| --- | --- |
-| 教师 STEP 输入 | `workspace/teacher/inbox/` |
-| 私有几何证据 | `workspace/teacher/evidence/` |
-| Reconstruction Agent 输入 | `workspace/reconstruction/inbox/` |
-| 参数化重建结果 | `workspace/reconstruction/designir/` |
-| 独立重建 STEP | `workspace/reconstruction/output/` |
-| Acceptance Agent 输入 | `workspace/acceptance/inbox/` |
-| 验收报告 | `workspace/acceptance/reports/` |
-| 经验候选 | `workspace/promotion/candidates/` |
-| 跨案例回放验证 | `workspace/promotion/replay_validated/` |
-| 正式经验库 | `workspace/promotion/promoted/library.json` |
-| 失败与能力缺口 | `workspace/quarantine/` |
+| 路径 | 用途 | Git |
+| --- | --- | --- |
+| `designir-pipeline/input/` | 原始教师 STEP/STP | 不提交 |
+| `designir-pipeline/runs/` | 证据、DesignIR、重建件、验收、草稿和失败记录 | 不提交 |
+| `designir-pipeline/output/library.json` | 通过确定性校验的经验库 | 提交 |
 
-详细说明见 [`designir-pipeline/workspace/README.md`](designir-pipeline/workspace/README.md)。
+`runs/` 内部由程序按需创建 `evidence`、`designir`、`rebuilt`、
+`acceptance`、`review` 和 `quarantine`。目录层级只负责整理文件；两个
+Agent 的读写边界由程序和合同控制。
+
+详细说明见 [`designir-pipeline/README.md`](designir-pipeline/README.md)。
 
 批量提取教师证据：
 
 ```bash
-designir-pipeline/scripts/cad-experience extract-folder \
-  --input designir-pipeline/workspace/teacher/inbox \
-  --output designir-pipeline/workspace/teacher/evidence
+designir-pipeline/scripts/cad-experience extract-folder
 ```
 
 蒸馏得到的经验必须同时通过几何一致性、特征语义、参数可编辑性和修改稳定性验收。两个 Agent 都无权直接发布经验，最终晋升由确定性策略执行。
@@ -187,7 +181,7 @@ text-to-cad/.venv/bin/python -m unittest \
 ```bash
 text-to-cad/.venv/bin/python \
   designir-pipeline/skills/cad-experience-builder/scripts/cad_experience.py \
-  audit designir-pipeline/workspace/promotion/promoted/library.json
+  audit designir-pipeline/output/library.json
 ```
 
 ## 当前边界