Govern task context and advance execution pointer

docs/status/M15-01B.md

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+# M15-01B Status
+
+status: done
+task: Blender 5.2 operator idname/poll/property inventory
+updated: 2026-08-19 America/New_York
+enablingTask: false
+parityStateChange: false
+
+## Scope
+
+The pinned Blender 5.2 runtime generated a deterministic inventory of all registered `bpy.ops`
+operators. Each entry records the operator idname, RNA identifier, factory-startup poll result/error,
+and sorted RNA property identifiers/types. This is a machine baseline only; it does not claim that
+any operator is supported by the web editor.
+
+## Evidence
+
+- `npm --prefix web run test:blender-operator-inventory` passed after temporary regeneration.
+- Checker output: `blender-operator-inventory-ok count=2486 registered=2486 pollUnknown=0 inventory=dabb774ea808f417a0085528ecc4538bc78f71d06f912a881a9453804597e49a next=M15-01C`.
+- Poll distribution: 666 true, 1,820 false, 0 unknown.
+- `npm --prefix web run typecheck` and `git diff --check` passed.
+
+## Artifact Hashes
+
+- parent manifest: `21f444610edae75b23a26ef9b94892f07fb056344fbd5e92e232c376454d76cd`
+- generator: `5928c2df2074d7b530c173baffc4da2bb0bbb50817ab8b2cdb5f6d43e07b1727`
+- checker: `dbf4b64c77750809060e6b3a8eaf87cfd67a904f33949ac631b661153b1f6cde`
+- inventory: `dabb774ea808f417a0085528ecc4538bc78f71d06f912a881a9453804597e49a`
+- report: `800102c010be59ec519d2e204aec4a97350fe7ba0f6729f52a8788f4a9bcde31`
+- manifest: `54dec9d2e7a0eacf3b17a06168b0c9c73a1358d0545cbf70d8a8579a9ed6fde5`
+- runtime binary: `d4483926610484ef9c2ad9241aae1469f934d955ebe791f1920e263e0ba85b82`
+
+## Next Task
+
+`M15-01C`: modifier, constraint, Shader Node, Geometry Node and Compositor Node inventory.
+
+## Rollback
+
+Remove the operator generator, checker, inventory, report, manifest, package command and this status
+page together. Restore `M15-01A` as the queue tail without changing the data-block inventory.