🔧 chore: add root ESLint config and enable lint in pre-commit

- Add eslint.config.mjs at root with TypeScript/JS rules
- Configure lint-staged to run ESLint --fix on JS/TS files
- Add ESLint dependencies to root package.json
- Set "type": "module" in package.json to fix module warning
- Ignore projects with their own ESLint configs

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -2,6 +2,7 @@
 	"name": "manacore-monorepo",
 	"version": "1.0.0",
 	"private": true,
+	"type": "module",
 	"description": "Manacore Monorepo containing manacore, manadeck, picture, chat, zitare, and presi",
 	"scripts": {
 		"dev": "turbo run dev",
@@ -116,7 +117,12 @@
 		"prepare": "husky"
 	},
 	"devDependencies": {
+		"@eslint/js": "^9.39.1",
 		"concurrently": "^9.2.0",
+		"eslint": "^9.39.1",
+		"eslint-config-prettier": "^10.1.8",
+		"eslint-plugin-prettier": "^5.5.4",
+		"globals": "^16.5.0",
 		"husky": "^9.1.7",
 		"lint-staged": "^16.2.7",
 		"prettier": "^3.3.3",
@@ -124,6 +130,7 @@
 		"prettier-plugin-svelte": "^3.4.0",
 		"turbo": "^2.3.0",
 		"typescript": "^5.9.3",
+		"typescript-eslint": "^8.48.1",
 		"wrangler": "^4.51.0"
 	},
 	"engines": {