Charon v1.18.1

Changes since v1.18.0

• chore(release): v1.18.1
• Improve PR stack cards for dense layouts
• Hide moon during loading states
• Add Codex model catalogs and Fast service-tier controls
• Animate PR stack selection transitions
• Configure macOS app branding
• chore(release): v1.18.0

Full changelog: v1.18.0...v1.18.1

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macOS build (universal: Apple Silicon + Intel), code-signed and notarized. The app self-updates from this release onward.