refactor(M03): extract M2 mesh resource cache state

Work-Package: M03-RND-M2-MESH-RESOURCE-CACHE-001
Agent: sindo-main-codex
Tests: 35 headless renderer/coordinate contracts pass; checkpoint dry-run 7/7; documentation and coordination gates pass
Fidelity: preserves exact Mesh references, replacement semantics and final-shutdown lifetime; no visual parity claim
This commit is contained in:
2026-07-17 12:10:37 +04:00
parent e2bb501695
commit e990a6503d
13 changed files with 478 additions and 19 deletions
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uid://dhkyjcrdblgkd