feat: preliminary imap_mail integration closes issue #3202 (#3213)

Author: waleedalzarooni

camel/toolkits/__init__.py

@@ -97,6 +97,7 @@
 from .notion_mcp_toolkit import NotionMCPToolkit
 from .vertex_ai_veo_toolkit import VertexAIVeoToolkit
 from .minimax_mcp_toolkit import MinimaxMCPToolkit
+from .imap_mail_toolkit import IMAPMailToolkit
 from .microsoft_outlook_mail_toolkit import OutlookMailToolkit
 from .earth_science_toolkit import EarthScienceToolkit
 
@@ -187,6 +188,7 @@
     'NotionMCPToolkit',
     'VertexAIVeoToolkit',
     'MinimaxMCPToolkit',
+    'IMAPMailToolkit',
     "OutlookMailToolkit",
     'EarthScienceToolkit',
 ]