Merge main into speckit-support and fix conflicts

- Resolved conflicts in package.json (kept both test:performance and refresh-speckit scripts)
- Resolved conflicts in agent-detector.test.ts (kept try/finally pattern for platform restoration)
- Fixed speckit-manager.ts to read prompts from disk instead of using Vite's ?raw imports
- Removed unused extractDescription function and added proper types for GitHub API response

package.json

@@ -33,7 +33,8 @@
     "start": "electron .",
     "clean": "rm -rf dist release node_modules/.vite",
     "postinstall": "electron-rebuild -f -w node-pty",
-    "lint": "tsc -p tsconfig.lint.json",
+    "lint": "tsc -p tsconfig.lint.json && tsc -p tsconfig.main.json --noEmit && tsc -p tsconfig.cli.json --noEmit",
+    "lint:eslint": "eslint src/",
     "test": "vitest run",
     "test:watch": "vitest",
     "test:coverage": "vitest run --coverage",
@@ -42,6 +43,7 @@
     "test:e2e:headed": "npm run build:main && npm run build:renderer && playwright test --headed",
     "test:integration": "vitest run --config vitest.integration.config.ts",
     "test:integration:watch": "vitest --config vitest.integration.config.ts",
+    "test:performance": "vitest run --config vitest.performance.config.mts",
     "refresh-speckit": "node scripts/refresh-speckit.mjs"
   },
   "build": {
@@ -223,6 +225,7 @@
   },
   "devDependencies": {
     "@electron/notarize": "^3.1.1",
+    "@eslint/js": "^9.39.2",
     "@playwright/test": "^1.57.0",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/react": "^16.3.0",
@@ -235,6 +238,8 @@
     "@types/react-dom": "^18.2.18",
     "@types/react-syntax-highlighter": "^15.5.13",
     "@types/ws": "^8.5.10",
+    "@typescript-eslint/eslint-plugin": "^8.50.1",
+    "@typescript-eslint/parser": "^8.50.1",
     "@vitejs/plugin-react": "^4.2.1",
     "@vitest/coverage-v8": "^4.0.15",
     "autoprefixer": "^10.4.16",
@@ -245,6 +250,10 @@
     "electron-playwright-helpers": "^2.0.1",
     "electron-rebuild": "^3.2.9",
     "esbuild": "^0.24.2",
+    "eslint": "^9.39.2",
+    "eslint-plugin-react": "^7.37.5",
+    "eslint-plugin-react-hooks": "^7.0.1",
+    "globals": "^16.5.0",
     "jsdom": "^27.2.0",
     "lucide-react": "^0.303.0",
     "playwright": "^1.57.0",
@@ -253,6 +262,7 @@
     "react-dom": "^18.2.0",
     "tailwindcss": "^3.4.1",
     "typescript": "^5.3.3",
+    "typescript-eslint": "^8.50.1",
     "vite": "^5.0.11",
     "vite-plugin-electron": "^0.28.2",
     "vitest": "^4.0.15"