fix the gemininkey issue

lib/auth.ts

@@ -181,7 +181,13 @@ export const { handlers, signIn, signOut, auth } = NextAuth({
               session.user.id = dbUser.id;
               session.user.name = dbUser.name || session.user.name;
               session.user.image = dbUser.image || session.user.image;
-              session.user.role = "user"; 
+              // START FIX: Check if this is the admin user
+              if (dbUser.id === "admin-user") {
+                session.user.role = "admin";
+              } else {
+                session.user.role = "user";
+              }
+              // END FIX
               session.user.accessToken = dbUser.accessToken || undefined;
             } else {
               // Only use admin fallback if NOT found in DB (unlikely for Google login)

lib/gemini.ts

@@ -1,7 +1,29 @@
 
 import { GoogleGenerativeAI } from "@google/generative-ai";
 import { Node, Edge } from "reactflow";
+import { auth } from "@/auth"; // Validate path is correct or adjust
+import { db } from "@/db";
+import { users } from "@/db/schema";
+import { eq } from "drizzle-orm";
 
+async function getEffectiveApiKey(providedKey?: string): Promise<string | undefined> {
+  if (providedKey) return providedKey;
+  if (process.env.GEMINI_API_KEY) return process.env.GEMINI_API_KEY;
+
+  try {
+    const session = await auth();
+    if (session?.user?.id) {
+      const user = await db.query.users.findFirst({
+        where: eq(users.id, session.user.id),
+        columns: { geminiApiKey: true }
+      });
+      if (user?.geminiApiKey) return user.geminiApiKey;
+    }
+  } catch (error) {
+    console.warn("Failed to fetch Gemini API key from DB:", error);
+  }
+  return undefined;
+}
 
 export async function generateEmailTemplate(
   businessType: string,

lib/validate-env.ts

@@ -6,7 +6,6 @@ export function validateEnvironmentVariables() {
         "NEXTAUTH_SECRET",
         "GOOGLE_CLIENT_ID",
         "GOOGLE_CLIENT_SECRET",
-        "GEMINI_API_KEY",
     ];
 
     const missing = required.filter(v => !process.env[v]);