[FEATURE] Native macOS App (SwiftUI) — replace Electron wrapper

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

The current Claude desktop app for macOS is built on Electron. This carries well-known trade-offs: higher memory usage, increased battery drain, and a user experience that falls short of what macOS users expect from a first-class app. There is no native system integration — keyboard shortcuts, menu bar behaviour, Spotlight, and system permissions all rely on web workarounds instead of native macOS APIs.

Proposed Solution

A native macOS app built in SwiftUI, following macOS conventions, with the same capabilities as the current desktop client. Global keyboard shortcut via native APIs, proper menu bar integration, and system permissions handled natively — not through a browser layer.

Alternative Solutions

Currently using the browser (Safari) as the primary interface, which has better energy efficiency on macOS than the Electron app. The Electron app exists but the performance gap versus a native app is meaningful on battery-powered devices.

Priority

High - Significant impact on productivity

Feature Category

CLI commands and flags

Use Case Example

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Additional Context

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