Use the shared absolute base-instance domain only for mesh transforms and subtract the published transform prefix for every live ordinary sidecar. Regenerate the production module and pin its hash.
Add real ordered-recording, committed-SPIR-V structure, and headless production-Vulkan pixel witnesses at nonzero prefixes, including receiver active/inactive invariance.
Mutations performed and restored:
1. Transform lookup -> local instanceIndex: MeshModernSharedIndexSpirvTests first failed Assert.Contains, item 368 not found in [27,377,27] (and the pixel witness found 0 dark pixels).
2. Selection sidecar -> absolute transformIndex: MeshModernSharedIndexOffscreenTests first failed: Expected a dark local-sidecar instance, found 0 matching pixels.
3. Published TextureIndexB -> 0: SharedTransformPrefix recording first failed Assert.Equal, expected 3, actual 0.
4. Receiver choice inverted: inactive first failed because expected mesh_modern was absent and only mesh_atmospheric was recorded; active failed conversely.
5. Offscreen shader directory -> copied test output: witness first failed the exact-path Assert.Equal (expected repo src/AcDream.App/Rendering/Shaders/spv, actual tests/AcDream.App.Tests/bin/Release/net10.0/Rendering/Shaders/spv).
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