feat(auth): setup better-auth backend with email and oauth support

.gitignore

@@ -60,3 +60,13 @@ coverage/
 .cache/
 .temp/
 .tmp/
+
+# ===============================
+# AI Agents
+# ===============================
+.agents/
+
+# ===============================
+# GitHub Skills
+# ===============================
+.github/skills

drizzle.config.ts

@@ -4,10 +4,10 @@ import { defineConfig } from "drizzle-kit";
 dotenv.config({ path: ".env.local" });
 
 export default defineConfig({
-  out: "./drizzle",
-  schema: "./src/db/schema.ts",
+  out: "./src/db/migrations",
+  schema: "./src/db/schema/index.ts",
   dialect: "postgresql",
   dbCredentials: {
-    url: process.env.DATABASE_DIRECT_URL as string,
+    url: process.env.DATABASE_URL as string,
   },
 });

eslint.config.mts

@@ -1,5 +1,6 @@
 import js from "@eslint/js";
 import { defineConfig } from "eslint/config";
+import importPlugin from "eslint-plugin-import";
 import n from "eslint-plugin-n";
 import simpleImportSort from "eslint-plugin-simple-import-sort";
 import globals from "globals";
@@ -8,15 +9,28 @@ import tseslint from "typescript-eslint";
 export default defineConfig([
   {
     files: ["**/*.{js,mjs,cjs,ts,mts,cts}"],
-    plugins: { js, n, "simple-import-sort": simpleImportSort },
+    plugins: {
+      js,
+      n,
+      "simple-import-sort": simpleImportSort,
+      import: importPlugin,
+    },
     extends: [js.configs.recommended, n.configs["flat/recommended"]],
-    languageOptions: { globals: globals.node },
+    languageOptions: {
+      globals: globals.node,
+    },
     rules: {
       ...n.configs.recommended.rules,
-
       "simple-import-sort/imports": "error",
       "simple-import-sort/exports": "error",
     },
+    settings: {
+      "import/resolver": {
+        typescript: {
+          project: "./tsconfig.json",
+        },
+      },
+    },
   },
   {
     rules: {

package.json

@@ -23,13 +23,15 @@
   "license": "ISC",
   "packageManager": "pnpm@10.28.2+sha512.41872f037ad22f7348e3b1debbaf7e867cfd448f2726d9cf74c08f19507c31d2c8e7a11525b983febc2df640b5438dee6023ebb1f84ed43cc2d654d2bc326264",
   "dependencies": {
+    "better-auth": "^1.4.18",
     "compression": "^1.8.1",
     "cors": "^2.8.6",
     "dotenv": "^17.2.3",
     "drizzle-orm": "^0.45.1",
     "express": "^5.2.1",
     "helmet": "^8.1.0",
-    "postgres": "^3.4.8"
+    "postgres": "^3.4.8",
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",
@@ -39,6 +41,8 @@
     "@types/node": "^25.1.0",
     "drizzle-kit": "^0.31.8",
     "eslint": "^9.39.2",
+    "eslint-import-resolver-typescript": "^4.4.4",
+    "eslint-plugin-import": "^2.32.0",
     "eslint-plugin-n": "^17.23.2",
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "globals": "^17.2.0",