v0.88.0

Changed

• ge::debug state is per-session (🎯T174) — the debug primitive queues, the debug-draw enable, and the perf HUD config (enable / placement / provider) are now carried by the Context rather than a process-global singleton. The host binds the active session around game callbacks and flush(ctx, …) re-binds from its Context, so a multi-session server keeps each stream's debug content and HUD strip separate. The free-function API is unchanged; direct-mode games behave identically. GPU pipelines and the monospace font remain process-global on the shared sokol device.

Notes

• Full process-globals audit in docs/globals-audit.md: all 38 statics in src/ classified. Remaining latent multi-session items filed as 🎯T175 (app-channel registries, button hit-target registry, cmdstream LiveCapture, SensorControl, viewer-backgrounded bit, metrics addressing) and 🎯T176 (text.cpp FreeType thread safety). All gate 🎯T163 true multi-session, not current behaviour.
• Multi-session isolation doctests added; prebuilts recooked for all platforms + debug variants.