fix: tauri CI builds + macOS runners + spaceui-link

- Add missing @vitejs/plugin-react-swc to tauri devDependencies
- Make spaceui/spacebot vite aliases conditional in tauri config
- Use package export paths for @spacedrive/tokens CSS imports
- Use regex aliases to prevent prefix-matching collisions
- Switch macOS release runners to macos-26 (GitHub-hosted)
- Fix spaceui-link to run bun link from workspace root

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/workflows/release.yml

@@ -89,12 +89,12 @@ jobs:
       matrix:
         settings:
           # macOS builds
-          - host: self-hosted
+          - host: macos-26
             target: aarch64-apple-darwin
             bundles: dmg,app
             os: darwin
             arch: aarch64
-          - host: self-hosted
+          - host: macos-26-large
             target: x86_64-apple-darwin
             bundles: dmg,app
             os: darwin