Tracking: Electrobun WGPU first-class support for v0.7.0

[devallibus]

Summary

Track first-class Electrobun support for the post-WGPU upstream line and the future v0.7.0 stable minor.

This umbrella owns the release narrative and the dependency order for:

• BrowserWindow shell support
• GPUWindow proof path
• runtime auto-detection and bridge bootstrap
• create-gametau --desktop-shell electrobun
• CI smoke and release-gate updates

Semver

• Target release: v0.7.0
• Reason: additive public API and CLI surface, no default-path break for existing Tauri/Web users
• Guardrail: no breaking cleanup of existing public Electrobun exports in this release line

Acceptance

• Docs/runtime matrix reflect the supported explicit Electrobun shell path
• webtau/adapters/electrobun exposes bridge bootstrap + capability helpers
• create-gametau supports explicit Electrobun shell scaffolding
• Electrobun counter example covers BrowserWindow and GPUWindow lanes
• CI and release gate docs include the Electrobun browser + GPU smoke lane

Related issues

• [P0] Rebaseline Electrobun roadmap/docs now that WGPU shipped upstream #159
• [P1] Add a BrowserWindow + <electrobun-wgpu> hybrid showcase and smoke lane #160
• [P1] Electrobun: expose render-mode capabilities to app code and templates #161
• Experimental Electrobun: auto-detect runtime in scaffold and examples before falling back to WASM #127
• [P2] create-gametau runtime option for Electrobun GPUWindow #99
• [P2] Battlestation GPUWindow runtime split and playable path #102

[devallibus]

Closing as satisfied by the merged Electrobun milestone series. The feature work landed in #164, #165, #166, #167, the doc rebaseline landed in #168, and the dedicated release-prep step landed in #169.