Fixed

• Bind group use-after-free with shared command encoder (wgpu#287) — RenderFrameGrouped() released bind groups via defer before gogpu submitted the shared encoder, causing HAL descriptor corruption. Fix: defer release to BeginFrame() for shared-encoder frames where VSync guarantees GPU completion. Own-encoder path unchanged. Matches Skia Graphite frame-scoped resource lifecycle.

Changed

• Updated gogpu/wgpu v0.30.27 → v0.30.29 (ADR-056 unified resource lifecycle, Release() via ResourceRef.Drop(), atomic LastSubmissionIndex).
• Updated example dependencies to gg v0.50.9, gogpu v0.47.1, gpucontext v0.23.0, wgpu v0.30.29. Removed stale replace directives from cjk_text and multi_damage_demo.