Advance deduplicated object deletion coverage

docs/tasks/WBV2-P22-001.md

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+# WBV2-P22-001: select_object_delete_batch
+
+- task: WBV2-P22-001
+- parent: WBV2-P22-000
+- status: in_progress
+- gap: capability:OBJECT_OPERATIONS.DELETE
+- ownerFamily: PARITY
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Select deleteObject as one unique Object Operations behavior.
+
+## 输入与范围
+
+- Focused source: `blender-5.2.0/source/blender/web_engine/web_engine_api.cpp`
+- Existing client: `web/app/src/engine-client/WebEngineClient.ts`
+- Inventory: `tests/golden/WBV2-P0-002/parity-map.json`
+- Production entrypoint: `node tools/web/generate-wbv2-delete-selection.mjs --write`
+
+## 验收
+
+- source command is hash-bound
+- prior object evidence is not rerun
+- one legacy operator binding is selected
+- malformed, hash-drift, unsupported, or false-completion input keeps in_progress
+- `node tools/web/check-task-context.mjs --task WBV2-P22-001 --write`
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P22-001/`
+- Status: `docs/status/WBV2-P22-001.md`
+- Manifest: `tests/golden/WBV2-P22-001/manifest.json`
+- Rollback: restore P22-000 as queue parent.