chore(task): archive 08-04-add-area-diagnostics

.trellis/tasks/archive/2026-08/08-04-add-area-diagnostics/check.jsonl

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+{"_example": "Fill with {\"file\": \"<path>\", \"reason\": \"<why>\"}. Put spec/research files only — no code paths. Run `python3 .trellis/scripts/get_context.py --mode packages` to list available specs. Delete this line once real entries are added."}

.trellis/tasks/archive/2026-08/08-04-add-area-diagnostics/implement.jsonl

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+{"_example": "Fill with {\"file\": \"<path>\", \"reason\": \"<why>\"}. Put spec/research files only — no code paths. Run `python3 .trellis/scripts/get_context.py --mode packages` to list available specs. Delete this line once real entries are added."}

.trellis/tasks/archive/2026-08/08-04-add-area-diagnostics/prd.md

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+# Add area diagnostics command
+
+## Goal
+
+Add a fast area diagnostics CLI for OSM structure and existing output artifact health.
+
+## Requirements
+
+- Add a fast diagnostics CLI for an area config.
+- The command must not invoke QGIS, Blender, Cesium, or GLB compression.
+- The report must scan the configured OSM XML for common manual-edit risks:
+  bounds presence, nodes, ways, relations, building ways, building multipolygon
+  relations, explicit heights, building levels, malformed relation members,
+  unresolved member ways, open rings, and basic vegetation counts.
+- The report must inspect existing output artifacts when present:
+  GeoJSON directory, GeoPackage, QGIS project, `.blend`, render PNG, GLB,
+  metadata, Cesium preview, compressed GLB, compressed metadata, and compressed
+  preview.
+- If a GLB exists, the report should reuse the existing GLB digest logic to
+  summarize size, nodes, meshes, materials, images, accessors, and extensions.
+- The command should emit clear warnings for likely trouble, including missing
+  OSM bounds, malformed building multipolygons, missing expected artifacts, GLB
+  over a conservative size budget, high node count, and high texture count.
+- Add an npm script and README usage.
+
+## Acceptance Criteria
+
+- [x] `npm run diagnose:area -- --config config/areas/nantaizi-lake-innovation-valley.json`
+      prints a useful text report without running heavy build stages.
+- [x] The diagnostics report includes OSM structure, building relation health,
+      vegetation counts, output artifact status, and GLB digest summary.
+- [x] Missing optional output artifacts are warnings, not hard failures.
+- [x] Syntax checks pass for the changed Node scripts.
+- [x] README documents the new diagnostic command.
+
+## Notes
+
+- Keep `prd.md` focused on requirements, constraints, and acceptance criteria.
+- Lightweight tasks can remain PRD-only.
+- For complex tasks, add `design.md` for technical design and `implement.md` for execution planning before `task.py start`.

.trellis/tasks/archive/2026-08/08-04-add-area-diagnostics/task.json

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+{
+  "id": "add-area-diagnostics",
+  "name": "add-area-diagnostics",
+  "title": "Add area diagnostics command",
+  "description": "Add a fast area diagnostics CLI for OSM structure and existing output artifact health.",
+  "status": "completed",
+  "dev_type": null,
+  "scope": null,
+  "package": null,
+  "priority": "P2",
+  "creator": "dingkang",
+  "assignee": "dingkang",
+  "createdAt": "2026-08-04",
+  "completedAt": "2026-08-04",
+  "branch": null,
+  "base_branch": "main",
+  "worktree_path": null,
+  "commit": null,
+  "pr_url": null,
+  "subtasks": [],
+  "children": [],
+  "parent": null,
+  "relatedFiles": [],
+  "notes": "",
+  "meta": {}
+}