chore: update dependencies and migrate tooling

.devcontainer/devcontainer.json

@@ -23,14 +23,13 @@
     "vscode": {
       "extensions": [
         "oven.bun-vscode",
-        "dbaeumer.vscode-eslint",
         "bradlc.vscode-tailwindcss",
         "YoavBls.pretty-ts-errors",
         "usernamehw.errorlens",
         "Prisma.prisma",
-        "esbenp.prettier-vscode",
         "dsznajder.es7-react-js-snippets",
-        "csstools.postcss"
+        "csstools.postcss",
+        "biomejs.biome"
       ]
     }
   },

.prettierignore

@@ -1,15 +0,0 @@
- node_modules
- .next
- .husky
- coverage
- .prettierignore
- .stylelintignore
- .eslintignore
- stories
- storybook-static
- *.log
- playwright-report
- .nyc_output
- test-results
- junit.xml
- docs

.prettierrc

@@ -1,11 +0,0 @@
-{
-  "useTabs": false,
-  "trailingComma": "all",
-  "semi": false,
-  "tabWidth": 2,
-  "singleQuote": false,
-  "printWidth": 80,
-  "endOfLine": "auto",
-  "arrowParens": "always",
-  "plugins": ["prettier-plugin-tailwindcss"]
-}

.vscode/settings.json

@@ -1,19 +1,11 @@
 {
     "editor.codeActionsOnSave": {
-        "source.fixAll.eslint": "always"
+        "source.organizeImports.biome": "explicit",
-    },
+        "source.fixAll.biome": "explicit"
-    "eslint.useFlatConfig": true,
-    "eslint.format.enable": true,
-    "eslint.run": "onSave",
-    "[typescript]": {
-        "editor.defaultFormatter": "esbenp.prettier-vscode"
     },
     "[json]": {
         "editor.defaultFormatter": "vscode.json-language-features"
     },
-    "[typescriptreact]": {
-        "editor.defaultFormatter": "esbenp.prettier-vscode"
-    },
     "[jsonc]": {
         "editor.defaultFormatter": "vscode.json-language-features"
     }

biome.json

@@ -0,0 +1,76 @@
+{
+	"$schema": "https://biomejs.dev/schemas/2.4.15/schema.json",
+	"vcs": {
+		"enabled": true,
+		"clientKind": "git",
+		"useIgnoreFile": true,
+		"defaultBranch": "main"
+	},
+	"files": {
+		"ignoreUnknown": false
+	},
+	"formatter": {
+		"enabled": true,
+		"formatWithErrors": false,
+		"indentStyle": "space",
+		"indentWidth": 2,
+		"lineEnding": "lf",
+		"lineWidth": 80,
+		"attributePosition": "auto",
+		"bracketSameLine": false,
+		"bracketSpacing": true,
+		"expand": "auto",
+		"useEditorconfig": true,
+		"includes": [
+			"**",
+			"!**/ node_modules",
+			"!**/ .next",
+			"!**/ .husky",
+			"!**/ coverage",
+			"!**/ .prettierignore",
+			"!**/ .stylelintignore",
+			"!**/ .eslintignore",
+			"!**/ stories",
+			"!**/ storybook-static",
+			"!**/ *.log",
+			"!**/ playwright-report",
+			"!**/ .nyc_output",
+			"!**/ test-results",
+			"!**/ junit.xml",
+			"!**/ docs"
+		]
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+	"javascript": {
+		"formatter": {
+			"jsxQuoteStyle": "double",
+			"quoteProperties": "asNeeded",
+			"trailingCommas": "all",
+			"semicolons": "asNeeded",
+			"arrowParentheses": "always",
+			"bracketSameLine": false,
+			"quoteStyle": "double",
+			"attributePosition": "auto",
+			"bracketSpacing": true
+		}
+	},
+	"html": {
+		"formatter": {
+			"indentScriptAndStyle": false,
+			"selfCloseVoidElements": "always"
+		}
+	},
+	"assist": {
+		"enabled": true,
+		"actions": {
+			"source": {
+				"organizeImports": "on"
+			}
+		}
+	}
+}

eslint.config.ts

@@ -1,59 +0,0 @@
-import { FlatCompat } from "@eslint/eslintrc"
-import eslintPlugin from "@eslint/js"
-import type { Linter } from "eslint"
-
-const compat = new FlatCompat()
-
-const eslintConfig = [
-  {
-    name: "custom/eslint/recommended",
-    files: ["**/*.ts?(x)"],
-    ...eslintPlugin.configs.recommended,
-  },
-]
-
-const ignoresConfig = [
-  {
-    name: "custom/eslint/ignores",
-    // the ignores option needs to be in a separate configuration object
-    // replaces the .eslintignore file
-    ignores: [
-      ".next/",
-      ".vscode/",
-      "public/",
-      "src/generated/",
-      "node_modules/",
-      "src/components/ui/",
-    ],
-  },
-] as Linter.Config[]
-
-export default [
-  ...compat.extends(
-    "next/core-web-vitals",
-    "next/typescript",
-    "plugin:import/recommended",
-    "plugin:playwright/recommended",
-    "plugin:prettier/recommended",
-  ),
-  ...compat.config({
-    rules: {
-      "no-unused-vars": "error",
-      "simple-import-sort/exports": "error",
-      "simple-import-sort/imports": "error",
-      "@typescript-eslint/no-unused-vars": "off",
-      "@typescript-eslint/no-explicit-any": "off",
-      "@typescript-eslint/no-empty-object-type": "off",
-      "@typescript-eslint/no-empty-interface": "off",
-    },
-    plugins: ["simple-import-sort"],
-    globals: { React: true, Prisma: true },
-    settings: {
-      react: {
-        version: "detect",
-      },
-    },
-  }),
-  ...eslintConfig,
-  ...ignoresConfig,
-] satisfies Linter.Config[]

next.config.ts

@@ -3,11 +3,6 @@ import type { NextConfig } from "next"
 const nextConfig: NextConfig = {
   /* config options here */
 
-  eslint: {
-    // we have added a lint command to the package.json build script
-    // which is why we disable the default next lint (during builds) here
-    ignoreDuringBuilds: true,
-  },
 }
 
 export default nextConfig

package.json

@@ -6,10 +6,9 @@
     "dev": "next dev --turbopack",
     "build": "next build",
     "start": "next start",
-    "next-lint": "next lint",
+    "lint": "biome lint --write",
-    "lint": "eslint .",
+    "format": "biome format --write",
-    "lint:fix": "eslint . --fix",
+    "check": "biome check --write",
-    "format": "prettier --write .",
     "db:push": "bunx prisma db push",
     "db:migrate": "bunx prisma migrate dev",
     "db:migrate:reset": "bunx prisma migrate reset",
@@ -22,8 +21,8 @@
     "seed": "bun src/prisma/seed.ts"
   },
   "dependencies": {
-    "@eslint/js": "^9.29.0",
+    "@base-ui/react": "^1.4.1",
-    "@hookform/resolvers": "^5.1.1",
+    "@hookform/resolvers": "^5.2.2",
     "@prisma/client": "^6.10.1",
     "@radix-ui/react-checkbox": "^1.3.2",
     "@radix-ui/react-collapsible": "^1.1.11",
@@ -36,36 +35,25 @@
     "bcryptjs": "^3.0.2",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
-    "lucide-react": "^0.518.0",
+    "lucide-react": "^1.11.0",
-    "next": "15.3.6",
+    "next": "^16.2.4",
     "next-auth": "^5.0.0-beta.28",
     "next-themes": "^0.4.6",
     "papaparse": "^5.5.3",
-    "react": "^19.1.0",
+    "react": "^19.2.5",
-    "react-dom": "^19.1.0",
+    "react-dom": "^19.2.5",
-    "react-hook-form": "^7.58.1",
+    "react-hook-form": "^7.74.0",
-    "sonner": "^2.0.5",
+    "sonner": "^2.0.7",
     "tailwind-merge": "^3.3.1",
     "use-debounce": "^10.0.6",
-    "zod": "^3.25.67"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.3.1",
+    "@biomejs/biome": "2.4.15",
     "@tailwindcss/postcss": "^4.1.10",
     "@types/node": "^24.0.3",
     "@types/react": "^19.1.8",
     "@types/react-dom": "^19.1.6",
-    "@typescript-eslint/parser": "^8.34.1",
-    "eslint": "^9.29.0",
-    "eslint-config-next": "15.3.4",
-    "eslint-config-prettier": "^10.1.5",
-    "eslint-plugin-import": "^2.31.0",
-    "eslint-plugin-playwright": "^2.2.0",
-    "eslint-plugin-prettier": "^5.5.0",
-    "eslint-plugin-simple-import-sort": "^12.1.1",
-    "eslint-plugin-unicorn": "^59.0.1",
-    "prettier": "^3.5.3",
-    "prettier-plugin-tailwindcss": "^0.6.13",
     "prisma": "^6.10.1",
     "tailwindcss": "^4.1.10",
     "tw-animate-css": "^1.3.4",

tsconfig.json

@@ -15,7 +15,7 @@
     "moduleResolution": "bundler",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "preserve",
+    "jsx": "react-jsx",
     "incremental": true,
     "plugins": [
       {
@@ -33,9 +33,10 @@
     "**/*.ts",
     "**/*.tsx",
     ".next/types/**/*.ts",
-    "types/**/*.ts"
+    "types/**/*.ts",
+    ".next/dev/types/**/*.ts"
   ],
   "exclude": [
     "node_modules"
   ]
-}
+}