Make graphics frame lease authority move-only

[conxlgtm]

Summary

• Make WaylandGraphicsFrameLease and WaylandGraphicsExternalBufferRenderLease move-only, with consuming submission, cancellation, and authority-transfer operations.
• Transfer frame authority exclusively into external-buffer render leases and make failed or abandoned leases release all frame and buffer reservations.
• Enforce the ownership contract with compile-fail clients, runtime lifetime/race tests, and a semantic API baseline that preserves overload signatures and compiler-parsed ownership markers.

Validation

• Full unit suite with Swift warnings as errors
• swift run wck ci cheap
• swift run wck ci required
• swift run wck api verify
• swift run wck docs verify
• swift run wck docc verify
• swift run wck examples build
• External GraphicsPreviewClient integration package
• Invalid frame-copy, render-copy, and post-transfer reuse clients rejected by the compiler
• Independent ownership, concurrency, and final merge-blocker review

Notes for Reviewers

Swift symbol graphs do not currently preserve all ~Copyable and borrowing get markers, so the semantic baseline supplements them with ownership records extracted from Swift's parse-only AST dump. Consuming overloads remain represented by their complete semantic declarations.

Unrelated EventBroker.swift Thread Sanitizer warnings remain outside this focused ownership change.

[chatgpt-codex-connector]

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[conxlgtm]

@codex review

[chatgpt-codex-connector]

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Reviewed commit: f06acf197b

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[conxlgtm]

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[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. 🚀

Reviewed commit: 7dc340ec07

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