Remove hardcoded Zoho credentials - now users input credentials through frontend

zoho_client.py

@@ -9,12 +9,16 @@ from dotenv import load_dotenv
 load_dotenv()
 
 class ZohoClient:
-    def __init__(self):
+    def __init__(self, email=None, app_password=None):
         self.imap_server = "imap.zoho.com"
         self.imap_port = 993
-        self.email = os.getenv("ZOHO_EMAIL", "projects@manaknightdigital.com")
-        # Use app password instead of regular password
-        self.app_password = os.getenv("ZOHO_APP_PASSWORD", "s7t8t9j6ebjm")
+        # Use provided credentials or fall back to environment variables
+        self.email = email or os.getenv("ZOHO_EMAIL", "")
+        self.app_password = app_password or os.getenv("ZOHO_APP_PASSWORD", "")
+        
+        if not self.email or not self.app_password:
+            raise ValueError("Zoho email and app password must be provided")
+            
         self.connection = None
         self._connect()