[BREAKING] Cline Desktop 0.0.9: universal macOS build, context usage ring, plan-mode enforcement

Ships one universal macOS binary for Apple Silicon and Intel, with existing per-architecture installs migrating on next update. Also surfaces context-window usage in the composer and inherits the SDK's plan-mode command blocking and provider retry fixes.

Tool: cline · Version: desktop-v0.0.9 · Significance: 3/5 · BREAKING CHANGE · feature, fix, breaking, model-support