refactor: one eslint task per workspace (#63835)

api/package.json

@@ -40,6 +40,7 @@
   },
   "description": "The freeCodeCamp.org open-source codebase and curriculum",
   "devDependencies": {
+    "@freecodecamp/eslint-config": "workspace:*",
     "@total-typescript/ts-reset": "0.5.1",
     "@types/jsonwebtoken": "9.0.5",
     "@types/lodash-es": "^4.17.12",
@@ -48,6 +49,8 @@
     "@types/validator": "13.11.2",
     "@vitest/ui": "^3.2.4",
     "dotenv-cli": "7.3.0",
+    "eslint": "^9.39.1",
+    "eslint-plugin-jsdoc": "48.2.1",
     "jsdom": "^26.1.0",
     "msw": "^2.7.0",
     "prisma": "6.16.2",
@@ -74,6 +77,7 @@
     "clean": "rm -rf dist",
     "develop": "tsx watch --clear-screen=false src/server.ts",
     "start": "FREECODECAMP_NODE_ENV=production node dist/server.js",
+    "lint": "eslint --max-warnings 0",
     "test": "vitest run",
     "test:watch": "vitest",
     "test:ui": "vitest --ui",