feat: add SettingsPage with HuggingFace model search and fix flexbox layout

- Add SettingsPage component with macOS/Linear-style settings UI (sp-* classes)
- Fix HuggingFace results list squeeze: sp-card-row--full now has align-items: stretch
  overriding the inherited flex-start, ensuring children fill 100% horizontal width
- Fix sp-hf-file row layout: width 100%, grid columns for name/quant/size/download
- Fix sp-hf-name truncation: explicit overflow/ellipsis/white-space in CSS
- Add white-space: nowrap to sp-hf-size and sp-hf-quant-badge to protect secondary columns
- Add runtime-deps crate, Tailwind/PostCSS config, runtime-defaults, MessageBubble test
- Update Cargo workspace, inference-server, tauri runtime types and process handling

tauri-app/package.json

@@ -11,10 +11,12 @@
     "tauri": "tauri"
   },
   "dependencies": {
+    "@phosphor-icons/react": "^2.1.10",
     "@tauri-apps/api": "^2",
     "@tauri-apps/plugin-shell": "^2",
     "dompurify": "^3.0.0",
     "highlight.js": "^11.0.0",
+    "lucide-react": "^1.7.0",
     "marked": "^12.0.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1"
@@ -25,7 +27,10 @@
     "@types/react": "^18.3.1",
     "@types/react-dom": "^18.3.1",
     "@vitejs/plugin-react": "^4.3.1",
+    "autoprefixer": "^10.4.27",
     "jsdom": "^29.0.1",
+    "postcss": "^8.5.8",
+    "tailwindcss": "^3.4.19",
     "typescript": "^5.5.3",
     "vite": "^5.4.8",
     "vitest": "^4.1.2"