68d52f218a
Traced end-to-end (AGE_DIAG_SETTEX): set-texture slot=G[0x62452] <- query-gfx-object? (-1 for unregistered CG handles) -> fallback lookup-array-2d(rec[s3]=G[0x3239])=0 because the slot table is never filled: label_125bd (SC0000 0x50f, slots 4..13) is gated behind the scene-coroutine framework (0x140 coroutine-yield, stubbed). Adds env-gated VM set-texture/query slot diagnostics + GfxState.IsRegistered. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>