Update CLI chat session bridge (#697)

* feat: add CLI chat sessions with Python agent bridge

Introduce a new CLI chat mode that connects Web UI directly to Hermes
Agent's AIAgent via a Python bridge subprocess and Socket.IO, bypassing
the API Server /v1/responses path. Supports streaming, slash commands
(/new, /undo, /retry, /branch, /compress, /save, /title), interrupt,
and steer.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* feat: update CLI chat session bridge

* fix: extend agent bridge startup timeouts

* docs: update bridge chat session design

* feat: align bridge compression and provider registry

* chore: bump version to 0.5.20

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/client/src/api/hermes/group-chat.ts

@@ -66,11 +66,13 @@ export function connectGroupChat(opts?: { userId?: string; userName?: string; de
             name: opts?.userName || localStorage.getItem('gc_user_name') || undefined,
             description: opts?.description || localStorage.getItem('gc_user_description') || undefined,
         },
-        transports: ['websocket'],
+        transports: ['websocket', 'polling'],
         reconnection: true,
         reconnectionAttempts: Infinity,
         reconnectionDelay: 1000,
         reconnectionDelayMax: 30000,
+        randomizationFactor: 0.5,
+        timeout: 30000,
     })
 
     return socket
@@ -185,4 +187,3 @@ export async function forceCompress(roomId: string): Promise<{ success: boolean;
         method: 'POST',
     })
 }
-