Govern task context and advance execution pointer

docs/status/M15-01C.md

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+# M15-01C Status
+
+status: done
+task: Blender 5.2 modifier, constraint and node inventory
+updated: 2026-08-19 America/New_York
+enablingTask: false
+parityStateChange: false
+
+## Scope
+
+The pinned Blender 5.2 runtime generated deterministic inventories for the 83 modifier types,
+29 constraint types, and 451 registered Shader, Geometry, and Compositor node types. Node entries
+include RNA properties sorted by identifier. The inventory is a machine baseline only and does not
+claim web parity for any family.
+
+## Evidence
+
+- `npm --prefix web run test:blender-family-inventory` passed after temporary regeneration.
+- Checker output: `blender-family-inventory-ok modifiers=83 constraints=29 nodes=451 inventory=bb7bbbf64184f326cd17933960800d7d761db6dd3b5f829e322e5ccdb12b8845 next=M15-01D`.
+- Node family distribution: Shader 99, Geometry 264, Compositor 88.
+- `npm --prefix web run typecheck` and `git diff --check` passed.
+
+## Artifact Hashes
+
+- parent manifest: `54dec9d2e7a0eacf3b17a06168b0c9c73a1358d0545cbf70d8a8579a9ed6fde5`
+- generator: `2630357cbe6ca7264499621399f1a010d6eb7af8c002283d9d16e65c23955eda`
+- checker: `0cf9821bb0f6f691ee1eb5a96d77a78932eeb07565352e65a5ed68844f7c0108`
+- inventory: `bb7bbbf64184f326cd17933960800d7d761db6dd3b5f829e322e5ccdb12b8845`
+- report: `0ca03907f828feba02df396d3fb9f0cfab791a5be67bd8d768c175a49088bae1`
+- manifest: `ae6acf4fa173803fcbd9b4c3cff0a561563e7ddb7abf6985844397d14c8f45dc`
+- runtime binary: `d4483926610484ef9c2ad9241aae1469f934d955ebe791f1920e263e0ba85b82`
+
+## Next Task
+
+`M15-01D`: sequencer strip/effect, physics family, and import/export inventory.
+
+## Rollback
+
+Remove the family generator, checker, inventory, report, manifest, package command and this status
+page together. Restore `M15-01B` as the queue tail without changing the operator inventory.