feat: ditch triplit, move to postgresql + drizzle orm

drizzle.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from 'drizzle-kit';
+
+export default defineConfig({
+    schema: ['./drizzle/schema.ts', './drizzle/auth-schema.ts'],
+    out: './migrations',
+    dialect: 'postgresql',
+    dbCredentials: {
+        url: process.env.DATABASE_URL || 'postgres://postgres:password@localhost:5432/veridian',
+    },
+});