feat(backend): migrate freelancer and portal runtimes

server/db/schema/settings.ts

@@ -0,0 +1,25 @@
+import { sql } from "drizzle-orm";
+import { check, sqliteTable, text } from "drizzle-orm/sqlite-core";
+import { user } from "./auth";
+
+export type AiProvider = "gemini" | "openai" | "groq" | "ollama";
+
+export const userAiSettings = sqliteTable(
+  "user_ai_settings",
+  {
+    ownerUserId: text("owner_user_id")
+      .primaryKey()
+      .references(() => user.id, { onDelete: "cascade" }),
+    provider: text("provider").$type<AiProvider>().default("gemini").notNull(),
+    model: text("model"),
+    encryptedApiKey: text("encrypted_api_key"),
+    createdAt: text("created_at").default(sql`CURRENT_TIMESTAMP`).notNull(),
+    updatedAt: text("updated_at").default(sql`CURRENT_TIMESTAMP`).notNull(),
+  },
+  (table) => [
+    check(
+      "user_ai_settings_provider_check",
+      sql`${table.provider} in ('gemini', 'openai', 'groq', 'ollama')`,
+    ),
+  ],
+);