Advance deduplicated paint capability coverage

docs/EXECUTION_QUEUE.md

@@ -13,9 +13,9 @@
 | 字段 | 值 |
 | --- | --- |
 | 里程碑 | WBV2 capability workflow |
-| 当前任务 | `WBV2-P15-003` |
-| parent manifest | `tests/golden/WBV2-P15-002/manifest.json` |
-| 任务卡 | [`tasks/WBV2-P15-003.md`](tasks/WBV2-P15-003.md) |
+| 当前任务 | `WBV2-P16-003` |
+| parent manifest | `tests/golden/WBV2-P16-002/manifest.json` |
+| 任务卡 | [`tasks/WBV2-P16-003.md`](tasks/WBV2-P16-003.md) |
 | 专项验收 | `node tools/web/check-execution-control-plane.mjs` |
 | legacy coverage checkpoint | `M16-GAP-00282` |
 | legacy coverage parent | `tests/golden/M16-GAP-00281/manifest.json` |

docs/status/WBV2-P16-000.md

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+# WBV2-P16-000 status
+
+- task: `WBV2-P16-000`; parent: `WBV2-P15-003`; status: `done`
+- candidate: `SCULPT.PAINT_ATTRIBUTES`; source commands and existing receipts are present
+- inventory carried forward: `6900` total, `6618` pending
+- duplicate validation: `forbidden`; representative slice only
+- nextTask: `WBV2-P16-001`
+
+P16 is an authorized continuation that reuses P14 coverage and validates one unique vertex-color/weight behavior batch in Chromium.

docs/status/WBV2-P16-001.md

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+# WBV2-P16-001 status
+
+- task: `WBV2-P16-001`; parent: `WBV2-P16-000`; status: `done`
+- selected capability: `SCULPT.PAINT_ATTRIBUTES`; operations: vertex colors and vertex weights
+- matched inventory entries: `117`; inventory remains `6900` total, `6618` pending
+- behavior hash: `00f77644acba0d1d902de5a4222f2c7f8b8987e1d31605bf440330455cb1070e`; dedupe key binds API and fixture hashes
+- existing paint evidence reused: `true`; repeated Blender/Chromium runs: `0`
+- representative slice: `true`; full-family parity: `false`
+- nextTask: `WBV2-P16-002`
+
+Only one unique color/weight behavior batch will be executed in Chromium. The 117 matched entries remain pending until their individual behavior evidence exists.

docs/status/WBV2-P16-002.md

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+# WBV2-P16-002 status
+
+- task: `WBV2-P16-002`; parent: `WBV2-P16-001`; status: `done`
+- Chromium/WASM Main operations: `setVertexColors`, `setVertexWeights`
+- exact inventory bindings: `operator:paint.vertex_color_set`, `operator:paint.weight_set`
+- revisions: colors `1 -> 4`; weights `1 -> 5`; malformed color input rejected
+- save/reopen: `EXACT`; deterministic second run: `true`
+- representative slice: `true`; full-family parity: `false`; inventory pending before overlay: `6618`
+- nextTask: `WBV2-P16-003`
+
+The production receipt binds two specific paint operators to the compiled WASM Main. Only these two inventory entries may graduate through the completion overlay; the other 115 paint entries remain pending.

docs/status/WBV2-P16-003.md

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+# WBV2-P16-003 status
+
+- task: `WBV2-P16-003`; parent: `WBV2-P16-002`; status: `done`
+- new feature claim: `SCULPT.PAINT_ATTRIBUTES`; exact inventory bindings: `2`
+- graduated IDs: `operator:paint.vertex_color_set`, `operator:paint.weight_set`
+- base inventory: `6900` total, `281` completed, `6618` pending
+- effective overlay: `283` completed, `6616` pending, claimed complete overlay: `2`
+- repeated Blender/Chromium validation: `0`; unique behavior runs: `2`; duplicate validation avoided: `true`
+- provenance epoch: `2`; release: `AUTHORIZED_REBASELINE_ONLY`; fullHistoricalReproduction: `false`
+- nextTask: `NONE`
+
+The completion overlay graduates only two exact operator IDs whose color/weight protocol behavior was verified in deterministic Chromium/WASM Main receipts. The canonical P0 inventory remains immutable at 6618 pending; effective coverage reports 6616 pending without claiming the other 115 paint entries or the full family complete.

docs/tasks/WBV2-P16-000.md

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+# WBV2-P16-000: paint capability continuation root
+
+- task: WBV2-P16-000
+- parent: WBV2-P15-003
+- status: done
+- gap: workflow:authorize_paint_capability_continuation
+- ownerFamily: PROGRAM
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Authorize a source-backed Sculpt/Paint continuation. P16 reuses the 6900-entry coverage ledger and validates one vertex-color/weight behavior batch against the compiled WebEngine WASM Main in Chromium.
+
+## 验收
+
+- `node tools/web/generate-wbv2-paint-root.mjs`
+- `node tools/web/check-execution-control-plane.mjs`
+- `node tools/web/check-v2-task-index.mjs`
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P16-000/`
+- Manifest: `tests/golden/WBV2-P16-000/manifest.json`
+- Rollback: restore P15-003 as queue parent without rewriting P15 evidence.

docs/tasks/WBV2-P16-001.md

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+# WBV2-P16-001: select_paint_capability_batch
+
+- task: WBV2-P16-001
+- parent: WBV2-P16-000
+- status: in_progress
+- gap: capability:SCULPT.PAINT_ATTRIBUTES
+- ownerFamily: PARITY
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Select one deterministic vertex-color and weight-paint behavior batch from source and inventory evidence.
+
+## 输入与范围
+
+- Focused source: `tests/golden/WBV2-P0-002/parity-map.json`
+- Existing source receipt: `tests/golden/WBV2-P4-003/sculpt-report.json`
+- Production API: `blender-5.2.0/source/blender/web_engine/web_engine_api.cpp`
+- Production entrypoint: `node tools/web/generate-wbv2-paint-selection.mjs --write`
+
+## 验收
+
+- source commands are present and hash-bound
+- existing paint evidence is reused read-only
+- candidate remains representative rather than full-family completion
+- malformed, hash-drift, unsupported, or false-completion input keeps in_progress
+- `node tools/web/check-task-context.mjs --task WBV2-P16-001 --write`
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P16-001/`
+- Status: `docs/status/WBV2-P16-001.md`
+- Manifest: `tests/golden/WBV2-P16-001/manifest.json`
+- Rollback: restore P16-000 as queue parent.

docs/tasks/WBV2-P16-002.md

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+# WBV2-P16-002: paint_attributes_engine_receipt
+
+- task: WBV2-P16-002
+- parent: WBV2-P16-001
+- status: in_progress
+- gap: capability:SCULPT.PAINT_ATTRIBUTES
+- ownerFamily: SCULPT
+- targetImplementationClass: LOCAL_EXACT
+
+## 目标
+
+Bind vertex colors and weights, undo/redo, malformed rejection, and exact save/reopen to compiled WASM Main in Chromium.
+
+## 输入与范围
+
+- Focused source: `tests/golden/WBV2-P16-001/paint-selection-report.json`
+- Production test: `web/tests/e2e/wbv2-paint-attributes-production.spec.ts`
+- Production entrypoint: `npm --prefix web run test:e2e -- --workers=1 tests/e2e/wbv2-paint-attributes-production.spec.ts`
+
+## 验收
+
+- vertex colors and weights match bounded expectations
+- undo/redo revisions are sequential
+- malformed input fails closed without Main mutation
+- save/reopen is exact and deterministic
+- Chromium is the only browser
+- `node tools/web/check-task-context.mjs --task WBV2-P16-002 --write`
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P16-002/`
+- Status: `docs/status/WBV2-P16-002.md`
+- Manifest: `tests/golden/WBV2-P16-002/manifest.json`
+- Rollback: restore P16-001 as queue parent.

docs/tasks/WBV2-P16-003.md

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+# WBV2-P16-003: close_paint_capability_gate
+
+- task: WBV2-P16-003
+- parent: WBV2-P16-002
+- status: in_progress
+- gap: workflow:close_paint_capability_gate
+- ownerFamily: RELEASE
+- targetImplementationClass: LOCAL_BOUNDED
+
+## 目标
+
+Close the paint capability gate without promoting representative evidence to full-family completion.
+
+## 输入与范围
+
+- Focused receipt: `tests/golden/WBV2-P16-002/paint-attributes-receipt-report.json`
+- Coverage matrix: `tests/golden/WBV2-P14-002/capability-evidence-matrix.json`
+- Production entrypoint: `node tools/web/generate-wbv2-paint-gate.mjs --write`
+
+## 验收
+
+- only tested paint behavior is claimed
+- base inventory remains 6618; exact completion overlay reduces effective pending to 6616
+- duplicate validation remains zero
+- malformed, hash-drift, unsupported, or false-completion input keeps in_progress
+- historical reproduction remains false
+- `node tools/web/check-task-context.mjs --task WBV2-P16-003 --write`
+
+## 交付与回滚
+
+- Reports: `tests/golden/WBV2-P16-003/`
+- Status: `docs/status/WBV2-P16-003.md`
+- Manifest: `tests/golden/WBV2-P16-003/manifest.json`
+- Rollback: restore P16-002 as queue parent.