baseline: dsh 工作区基线快照（2026-09-10，全新历史起点）

本提交为 dsh_mcn_workshop 仓库的首个提交（旧仓 dsh_MCNProject 已停用），
完整固化 C:/Users/Administrator/.dsh 当前磁盘状态。

1) 临时数据清理：移出 sessions/(81M)、logs/、skill-backup-20260906/(14M)、
   scripts/__pycache__、storages/workspace.json.bak —— 合计 94M（.dsh 162M → 68M）
2) 凭据脱敏：.credentials.yaml（含明文 DEEPSEEK_API_KEY）移出 git 跟踪并加入
   .gitignore；mcn-data-insight/scripts/setup_redfox_key.py 中真实 key 示例改为占位符
3) .gitignore 增补 logs/、skill-backup-*/ 规则
4) 技能结构以当前磁盘状态为准：skills/ = mcn-short-video / impeccable / taste-skill /
   dsh-multi-user-migration；旧技能目录（mcn-dou-analysis、storyboard-prompt、
   short-video-script、browser-harness、mcn-data-insight）与
   profiles/web/node_modules/dsh-vision-router 本地已不存在，本提交记为删除

skills/impeccable/reference/layout.md

@@ -0,0 +1,84 @@
+Layout turns product priority into reading order, grouping, rhythm, and usable space. Diagnose the structural problem before moving boxes.
+
+---
+
+## Visitor mode
+
+- **Persuade + Experience:** composition may be asymmetric, fluid, or intentionally disruptive when the selected world earns it.
+- **Operate + Read:** predictable structure, stable density, and navigable linearity are affordances.
+- **Native:** follow [ios.md](ios.md) or [android.md](android.md) for navigation, insets, adaptation, and touch targets.
+
+Preserve the established visual world. A layout command changes structure inside it; identity replacement belongs to [new-work.md](new-work.md).
+
+## Two isolated assessments
+
+When a sub-agent tool is available and permitted, run these independently; otherwise run them yourself in this order.
+
+1. **Layout assessment:** inspect representative states and viewports. Answer every question below with rendered or source evidence:
+   - **Reading order:** Apply the squint test. With detail blurred, can you still identify the primary element, the secondary element, and the major groups in order?
+   - **Grouping:** Are related items close and distinct groups separated, or are containers compensating for weak proximity?
+   - **Rhythm:** Do tight and generous intervals create a deliberate cadence, or is one spacing value repeated until everything has equal weight?
+   - **Structure:** Does the topology match the content and task? Are repeated cards, columns, or sections genuinely equivalent, or merely a framework default?
+   - **Density:** Does the amount of information per region fit use frequency, decision complexity, and visitor mode?
+   - **Adaptation:** At narrow, intermediate, wide, zoomed, and localized states, what reorders, collapses, wraps, scrolls, or remains fixed? Does DOM and focus order still agree with the visual order?
+   - **Extremes:** Do long content, empty states, overlays, sticky elements, safe areas, and small touch targets expose structural failures?
+2. **Mechanical scan:** run:
+
+```bash
+node {{scripts_path}}/detect.mjs --json --scope layout [target files or dirs]
+```
+
+Also inspect arbitrary spacing, overflow, stacking, and container behavior the detector cannot resolve. Keep mechanical evidence out of the first assessment, then synthesize both passes before editing. A clean scan cannot prove hierarchy or rhythm.
+
+## Set the spatial thesis
+
+Before editing, name:
+
+- the primary reading or task path;
+- what belongs together and what must separate;
+- which element leads and which supports;
+- the intended density and spacing rhythm;
+- how the structure changes across containers, viewports, input modes, and content extremes.
+
+Choose the simplest structural model that expresses those relationships. Use layout primitives according to the relationships they control, and name reusable spacing and container roles semantically.
+
+## Apply
+
+- Group by meaning. Use proximity before adding containers or decoration.
+- Create rhythm through deliberate contrast between tight and generous intervals.
+- Use a documented spacing scale rather than one-off values. A 4-unit base usually provides the useful middle steps that an 8-only scale misses.
+- Let hierarchy follow product priority, not framework defaults.
+- Keep distinct content visually distinct without turning every group into an isolated component.
+- Make responsive behavior structural: reorder, collapse, reflow, or reveal based on what remains important.
+- Prefer container-aware components when the same component appears in different contexts.
+- Use `gap` for sibling rhythm when it expresses the relationship more directly than child margins.
+- Keep touch targets usable even when their visible marks are small.
+- Use depth only when it clarifies state or hierarchy.
+- Make optical corrections only after inspecting the rendered result.
+
+Variation is not a goal by itself. Repetition should support recognition; break it only when content or priority changes.
+
+## Verify
+
+- The squint test still reveals the primary, secondary, and major groups in order.
+- The reading and task path remains clear at every supported size.
+- Related content groups naturally; unrelated content does not blur together.
+- Tight and generous spacing create intentional rhythm instead of monotonous repetition.
+- Density matches use frequency and content complexity.
+- Long text, empty states, localization, zoom, and dynamic content do not break the structure.
+- Keyboard, touch, and assistive-technology order agree with the visual order.
+- The final mechanical scan has no unexplained findings.
+
+Answer each item with rendered or source evidence, then rerun the scan. Do not substitute a bare “yes” for verification.
+
+When the structure holds, hand off to `{{command_prefix}}impeccable polish`.
+
+## Live-mode signature params
+
+Every variant declares a coarse `density` parameter and authors spacing against `var(--p-density, 1)`.
+
+```json
+{"id":"density","kind":"range","min":0.6,"max":1.4,"step":0.05,"default":1,"label":"Density"}
+```
+
+Add one structural parameter only when the topology genuinely branches. Follow [live.md](live.md)'s parameter contract.