Complete M16 asset operator parity chain

docs/status/M16-GAP-00264.md

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+# M16-GAP-00264 Status
+
+status: done
+task: asset.asset_download operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture contains one fake-user external Image with source path
+  `//assets/WebGapAssetDownload.png`. Blender desktop enables online access for
+  the isolated check, runs `ASSET_OT_asset_download` for a missing remote
+  relative identifier, and records the real `CANCELLED` result with no Main
+  mutation. Save/reopen preserves the image resource fields exactly.
+- WASM/Main reads the same fixture as an external, unpacked Image with stable
+  `assetStatus=EXTERNAL`, `assetId`, source path, and dimensions. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made.
+
+nextTask: `M16-GAP-00265`

docs/status/M16-GAP-00265.md

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+# M16-GAP-00265 Status
+
+status: done
+task: asset.assets_download operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture contains one fake-user external Image with source path
+  `//assets/WebGapAssetsDownload.png`. Blender desktop enables online access,
+  confirms `ASSET_OT_assets_download.poll()` is false, and records the real
+  `CANCELLED` result with no Main mutation. Save/reopen preserves the image
+  resource fields exactly.
+- WASM/Main reads the same fixture as an external, unpacked Image with stable
+  `assetStatus=EXTERNAL`, `assetId`, source path, and dimensions. The
+  comparator confirms save/reopen stability and malformed-input rejection
+  without Main mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made.
+
+nextTask: `M16-GAP-00266`

docs/status/M16-GAP-00266.md

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+# M16-GAP-00266 Status
+
+status: done
+task: asset.assign_action operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture contains one fake-user `WebGapAssignAction` with a two-key
+  `location[0]` channel assigned to `WebGapAssignActionObject`. Blender
+  desktop observes the no-Asset-Shelf context as `poll=false`, records the
+  real `CANCELLED` result from `ASSET_OT_assign_action`, and confirms no Main
+  mutation. Save/reopen preserves the Action exactly.
+- WASM/Main reads the same fixture as one stable Action animation targeting
+  `object:WebGapAssignActionObject`. The comparator confirms both keyframes,
+  save/reopen stability, and malformed-input rejection without Main mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made.
+
+nextTask: `M16-GAP-00267`

docs/status/M16-GAP-00267.md

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+# M16-GAP-00267 Status
+
+status: done
+task: asset.browse_containing_blend_file operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapBrowseContaining.blend`.
+  Blender desktop observes the no-selected-asset boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_browse_containing_blend_file`, and confirms
+  no Main mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00268`

docs/status/M16-GAP-00268.md

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+# M16-GAP-00268 Status
+
+status: done
+task: asset.bundle_install operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapBundleInstall.blend`.
+  Blender desktop observes the no-bundle context as `poll=false`, records
+  `CANCELLED` for `ASSET_OT_bundle_install`, and confirms no Main mutation.
+  Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00269`

docs/status/M16-GAP-00269.md

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+# M16-GAP-00269 Status
+
+status: done
+task: asset.catalog_delete operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogDelete.blend`.
+  Blender desktop observes the no-catalog-selection boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalog_delete`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00270`

docs/status/M16-GAP-00270.md

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+# M16-GAP-00270 Status
+
+status: done
+task: asset.catalog_new operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogNew.blend`.
+  Blender desktop observes the no-catalog-selection boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalog_new`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00271`

docs/status/M16-GAP-00271.md

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+# M16-GAP-00271 Status
+
+status: done
+task: asset.catalog_redo operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogRedo.blend`.
+  Blender desktop observes the no-catalog-selection boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalog_redo`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00272`

docs/status/M16-GAP-00272.md

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+# M16-GAP-00272 Status
+
+status: done
+task: asset.catalog_undo operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogUndo.blend`.
+  Blender desktop observes the no-catalog-selection boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalog_undo`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00273`

docs/status/M16-GAP-00273.md

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+# M16-GAP-00273 Status
+
+status: done
+task: asset.catalog_undo_push operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogUndoPush.blend`.
+  Blender desktop observes the no-catalog-selection boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalog_undo_push`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00274`

docs/status/M16-GAP-00274.md

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+# M16-GAP-00274 Status
+
+status: done
+task: asset.catalogs_save operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapCatalogsSave.blend`.
+  Blender desktop observes the no-active-asset-library boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_catalogs_save`, and confirms no Main
+  mutation. Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00275`

docs/status/M16-GAP-00275.md

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+# M16-GAP-00275 Status
+
+status: done
+task: asset.clear operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The fixture links one object from external `WebGapAssetClear.blend`.
+  Blender desktop observes the no-local-asset boundary as `poll=false`,
+  records `CANCELLED` for `ASSET_OT_clear`, and confirms no Main mutation.
+  Save/reopen preserves the Library record exactly.
+- WASM/Main reads the same external Library with stable source path,
+  `EXTERNAL_REQUIRED` status, and an empty dependency closure. The comparator
+  confirms save/reopen stability and malformed-input rejection without Main
+  mutation.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator, and
+  task context checks passed with exit code 0. Chromium-only policy was
+  preserved and no Firefox/WebKit run was made. Blender's expected missing
+  external-library warning is recorded by the comparator while the Library
+  state remains exact.
+
+nextTask: `M16-GAP-00276`