Release Tank Royale 1.1.0 with TwinDuel GUI

[flemming-n-larsen]

Acceptance brief

Plan: P-003/M-008 and M-010 — still wanted: yes.

• GTD-001, “Select TwinDuel for a GUI battle”: verifies. The GUI test confirms the selector exposes and retains twinduel, then asserts the shared 800×800, four-participant, 75-round preset.
• Merge binds the 1.1.0 release preparation and marks M-010 done. CH-012 remains a draft and M-008 cannot resume or complete until the official 1.1.0 release is published.

Summary

• Sets the authoritative Tank Royale version and generated TypeScript carriers to 1.1.0.
• Adds selectable GUI TwinDuel backed by the shared game-type preset.
• Aligns /release with VERSION and CI-owned documentation deployment; it never commits or pushes directly to main.
• Removes the paused CH-012 workspace from main; its draft branch remains the durable work state.

Verification

• ./gradlew.bat clean build --no-daemon --max-workers=1 --console=plain
• ./gradlew.bat build-release --no-daemon --max-workers=1 --console=plain
• ./gradlew.bat :gui:test --no-daemon --max-workers=1 --console=plain
• clue validate --forbid-changes
• Agentic review: in-context fallback, clean on 49dfe98f01f9e315898b08c8f94fdf44d12cb151.