Advance WBV2 through native engine module matrix

docs/tasks/WBV2-P10-001.md

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+# WBV2-P10-001: reconcile WBV2 inventory source drift
+
+- task: WBV2-P10-001
+- parent: WBV2-P10-000
+- status: in_progress
+- gap: workflow:reconcile_wbv2_inventory_source_drift
+- ownerFamily: PARITY
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Record the already observed mutable plan drift and prove dependency closure stability. The historical P0-002 source hashes remain immutable; a current baseline is an additive P10 artifact.
+
+## 输入与范围
+
+- Historical source hashes: `tests/golden/WBV2-P0-002/source-hashes.json`
+- Current plan: `docs/BLENDER_WEB_PARITY_TASK_PLAN_V2.json`
+- Dependency baseline: `tests/golden/M13-05C/dependency-inventory.json`
+- Checker: `tools/web/check-wbv2-inventory.mjs`
+- Rebaseline generator: `tools/web/generate-wbv2-inventory-rebaseline.mjs`
+
+## 验收
+
+- `node tools/web/generate-wbv2-inventory-rebaseline.mjs --write`
+- `node tools/web/check-wbv2-inventory-rebaseline.mjs`
+- `node tools/web/check-task-context.mjs --task WBV2-P10-001 --write`
+
+Failure cases (malformed input, unsupported dependency, unexpected drift, changed closure, historical hash rewrite, missing baseline, or failed checker) must keep in_progress and must not advance nextTask.
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P10-001/`
+- Status: `docs/status/WBV2-P10-001.md`
+- Manifest: `tests/golden/WBV2-P10-001/manifest.json`
+- Rollback: restore P10-000 as queue parent; keep P0-002 hashes untouched.