fix: restore polished account experience and align AI with Lark design

backend/app/main.py

@@ -45,7 +45,7 @@ from .schemas import (
 from .security import bootstrap, cipher, issue_session, require_auth, token_hash, valid_password
 
 
-def account_output(account):
+def account_output(account, client):
     keys = (
         "email",
         "wq_user_id",
@@ -59,7 +59,11 @@ def account_output(account):
         "timezone",
         "page_size",
     )
-    return {**{k: getattr(account, k) for k in keys}, "configured": bool(account.password_encrypted)}
+    return {
+        **{k: getattr(account, k) for k in keys},
+        "configured": bool(account.password_encrypted),
+        "session": client.session_info(),
+    }
 
 
 def csv_cell(value):
@@ -189,7 +193,7 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
     @api.get("/account", response_model=AccountOutput, tags=["account"])
     async def get_account():
         async with sessions() as db:
-            return account_output(await db.get(Account, 1))
+            return account_output(await db.get(Account, 1), runner.client)
 
     @api.put("/account/credentials", response_model=AccountOutput, tags=["account"])
     async def credentials(body: CredentialsInput):
@@ -203,7 +207,7 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
             account.email = body.email
             account.password_encrypted = cipher(settings).encrypt(body.password.encode()).decode()
             await db.commit()
-            return account_output(account)
+            return account_output(account, runner.client)
 
     @api.patch("/account/preferences", response_model=AccountOutput, tags=["account"])
     async def preferences(body: PreferencesInput):
@@ -212,7 +216,7 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
             for key, value in body.model_dump().items():
                 setattr(account, key, value)
             await db.commit()
-            return account_output(account)
+            return account_output(account, runner.client)
 
     async def account_job(kind):
         async with sessions() as db: