chore(backend): add eslint config and lint script

backend/eslint.config.js

@@ -0,0 +1,18 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    ignores: ['dist/**', 'node_modules/**', 'coverage/**'],
+  },
+  {
+    files: ['src/**/*.ts'],
+    rules: {
+      'no-console': 'warn',
+      '@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
+      '@typescript-eslint/no-explicit-any': 'warn',
+    },
+  },
+);

backend/package.json

@@ -11,7 +11,8 @@
     "start": "node dist/server.js",
     "test": "vitest run",
     "test:watch": "vitest",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint src/"
   },
   "dependencies": {
     "@bytelyst/auth": "^0.1.0",
@@ -34,6 +35,8 @@
     "@types/node": "^22.12.0",
     "tsx": "^4.19.2",
     "typescript": "^5.7.3",
-    "vitest": "^3.0.5"
+    "vitest": "^3.0.5",
+    "eslint": "^9.0.0",
+    "typescript-eslint": "^8.0.0"
   }
 }

pnpm-lock.yaml

@@ -59,12 +59,18 @@ importers:
       '@types/node':
         specifier: ^22.12.0
         version: 22.19.15
+      eslint:
+        specifier: ^9.0.0
+        version: 9.39.4(jiti@2.6.1)
       tsx:
         specifier: ^4.19.2
         version: 4.21.0
       typescript:
         specifier: ^5.7.3
         version: 5.9.3
+      typescript-eslint:
+        specifier: ^8.0.0
+        version: 8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
       vitest:
         specifier: ^3.0.5
         version: 3.2.4(@types/node@22.19.15)(jiti@2.6.1)(jsdom@28.1.0)(lightningcss@1.32.0)(tsx@4.21.0)
@@ -118,7 +124,7 @@ importers:
         version: 19.2.3(react@19.2.3)
       recharts:
         specifier: ^3.7.0
-        version: 3.8.0(@types/react@19.2.14)(react-dom@19.2.3(react@19.2.3))(react-is@16.13.1)(react@19.2.3)(redux@5.0.1)
+        version: 3.8.0(@types/react@19.2.14)(react-dom@19.2.3(react@19.2.3))(react-is@17.0.2)(react@19.2.3)(redux@5.0.1)
       serwist:
         specifier: ^9.5.6
         version: 9.5.7(browserslist@4.28.1)(typescript@5.9.3)
@@ -161,7 +167,7 @@ importers:
         version: 9.39.4(jiti@2.6.1)
       eslint-config-next:
         specifier: 16.1.6
-        version: 16.1.6(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
+        version: 16.1.6(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
       jsdom:
         specifier: ^28.1.0
         version: 28.1.0
@@ -5413,13 +5419,13 @@ snapshots:
 
   escape-string-regexp@4.0.0: {}
 
-  eslint-config-next@16.1.6(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3):
+  eslint-config-next@16.1.6(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3):
     dependencies:
       '@next/eslint-plugin-next': 16.1.6
       eslint: 9.39.4(jiti@2.6.1)
       eslint-import-resolver-node: 0.3.9
-      eslint-import-resolver-typescript: 3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
+      eslint-import-resolver-typescript: 3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
-      eslint-plugin-import: 2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
+      eslint-plugin-import: 2.32.0(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
       eslint-plugin-jsx-a11y: 6.10.2(eslint@9.39.4(jiti@2.6.1))
       eslint-plugin-react: 7.37.5(eslint@9.39.4(jiti@2.6.1))
       eslint-plugin-react-hooks: 7.0.1(eslint@9.39.4(jiti@2.6.1))
@@ -5441,7 +5447,7 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
+  eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
     dependencies:
       '@nolyfill/is-core-module': 1.0.39
       debug: 4.4.3
@@ -5452,22 +5458,21 @@ snapshots:
       tinyglobby: 0.2.15
       unrs-resolver: 1.11.1
     optionalDependencies:
-      eslint-plugin-import: 2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
+      eslint-plugin-import: 2.32.0(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
     transitivePeerDependencies:
       - supports-color
 
-  eslint-module-utils@2.12.1(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint-import-resolver-node@0.3.9)(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
+  eslint-module-utils@2.12.1(eslint-import-resolver-node@0.3.9)(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
     dependencies:
       debug: 3.2.7
     optionalDependencies:
-      '@typescript-eslint/parser': 8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
       eslint: 9.39.4(jiti@2.6.1)
       eslint-import-resolver-node: 0.3.9
-      eslint-import-resolver-typescript: 3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
+      eslint-import-resolver-typescript: 3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
     transitivePeerDependencies:
       - supports-color
 
-  eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
+  eslint-plugin-import@2.32.0(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)):
     dependencies:
       '@rtsao/scc': 1.1.0
       array-includes: 3.1.9
@@ -5478,7 +5483,7 @@ snapshots:
       doctrine: 2.1.0
       eslint: 9.39.4(jiti@2.6.1)
       eslint-import-resolver-node: 0.3.9
-      eslint-module-utils: 2.12.1(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint-import-resolver-node@0.3.9)(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(@typescript-eslint/parser@8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
+      eslint-module-utils: 2.12.1(eslint-import-resolver-node@0.3.9)(eslint-import-resolver-typescript@3.10.1(eslint-plugin-import@2.32.0(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1)))(eslint@9.39.4(jiti@2.6.1))
       hasown: 2.0.2
       is-core-module: 2.16.1
       is-glob: 4.0.3
@@ -5489,8 +5494,6 @@ snapshots:
       semver: 6.3.1
       string.prototype.trimend: 1.0.9
       tsconfig-paths: 3.15.0
-    optionalDependencies:
-      '@typescript-eslint/parser': 8.57.2(eslint@9.39.4(jiti@2.6.1))(typescript@5.9.3)
     transitivePeerDependencies:
       - eslint-import-resolver-typescript
       - eslint-import-resolver-webpack
@@ -6446,7 +6449,7 @@ snapshots:
 
   real-require@0.2.0: {}
 
-  recharts@3.8.0(@types/react@19.2.14)(react-dom@19.2.3(react@19.2.3))(react-is@16.13.1)(react@19.2.3)(redux@5.0.1):
+  recharts@3.8.0(@types/react@19.2.14)(react-dom@19.2.3(react@19.2.3))(react-is@17.0.2)(react@19.2.3)(redux@5.0.1):
     dependencies:
       '@reduxjs/toolkit': 2.11.2(react-redux@9.2.0(@types/react@19.2.14)(react@19.2.3)(redux@5.0.1))(react@19.2.3)
       clsx: 2.1.1
@@ -6456,7 +6459,7 @@ snapshots:
       immer: 10.2.0
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
-      react-is: 16.13.1
+      react-is: 17.0.2
       react-redux: 9.2.0(@types/react@19.2.14)(react@19.2.3)(redux@5.0.1)
       reselect: 5.1.1
       tiny-invariant: 1.3.3