chore(web): continuous handoff WBV2-P500-002

docs/tasks/WBV2-P500-003.md

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+# WBV2-P500-003: run_capability_family_smoke
+
+- task: WBV2-P500-003
+- parent: WBV2-P500-002
+- status: planned
+- gap: workflow:run_capability_family_smoke
+- ownerFamily: RELEASE
+- targetImplementationClass: SOURCE_BACKED
+
+## 目标
+
+Run source and frontend smoke without Chromium parity verification.
+
+## 输入与范围
+
+- Blender source authority: `blender-5.2.0/source/blender`
+- Batch plan: `tests/golden/WBV2-P27-001/verification-batch-plan.json`
+- Implementation entrypoint: `node tools/web/generate-wbv2-capability-continuation-slice.mjs --task WBV2-P500-003 --write`
+
+## 验收
+
+- 6900 inventory and provenance remain read-only
+- capability-family deduplication is reused
+- malformed, unsupported, hash-drift and false-completion input fails closed
+- Chromium, E2E receipts and completion overlays remain deferred
+- `node tools/web/check-task-context.mjs --task WBV2-P500-003 --write`
+
+## 失败边界
+
+- missing source or unsupported capability remains in_progress/blocked
+- representative implementation is never declared as full-family parity
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P500-003/`
+- Status: `docs/status/WBV2-P500-003.md`
+- Manifest: `tests/golden/WBV2-P500-003/manifest.json`
+- Rollback: restore WBV2-P500-002 as queue parent and leave the task in_progress.