Add Prettier configuration and ignore files for code formatting

- Introduced a new `.prettierrc` file to define code formatting rules, including settings for semicolons, trailing commas, and import order.
- Added a `.prettierignore` file to exclude specific directories and files from formatting, ensuring a cleaner codebase.
- Updated `package.json` to include new scripts for formatting and linting, enhancing the development workflow.

These changes establish a consistent code style and improve maintainability across the project.

.prettierignore

@@ -0,0 +1,10 @@
+node_modules
+dist
+coverage
+src-tauri
+skills
+*.config.js
+*.config.ts
+tsconfig.tsbuildinfo
+yarn.lock
+package-lock.json

.prettierrc

@@ -0,0 +1,22 @@
+{
+  "semi": true,
+  "trailingComma": "es5",
+  "singleQuote": true,
+  "printWidth": 100,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "arrowParens": "avoid",
+  "endOfLine": "lf",
+  "bracketSameLine": true,
+  "objectWrap": "collapse",
+  "jsxSingleQuote": false,
+  "quoteProps": "as-needed",
+  "proseWrap": "preserve",
+  "plugins": ["@trivago/prettier-plugin-sort-imports"],
+  "importOrder": ["<THIRD_PARTY_MODULES>", "^src/", "^[../]", "^[./]"],
+  "importOrderSeparation": true,
+  "importOrderSortSpecifiers": true,
+  "importOrderCaseInsensitive": true,
+  "importOrderGroupNamespaceSpecifiers": true
+}

package.json

@@ -14,7 +14,11 @@
     "setup-python-sidecar": "node scripts/setup-python-sidecar.mjs",
     "test": "vitest run",
     "test:watch": "vitest",
-    "test:coverage": "vitest run --coverage"
+    "test:coverage": "vitest run --coverage",
+    "format": "prettier --write .",
+    "format:check": "prettier --check .",
+    "lint": "eslint . --ext .ts,.tsx",
+    "lint:fix": "eslint . --ext .ts,.tsx --fix"
   },
   "dependencies": {
     "@reduxjs/toolkit": "^2.11.2",