Refactor TeamService: remove redundant search validation logging and streamline logic; update TeamSelector button disable condition; increment uv.lock revision

Author: Kingshuk-Microsoft

src/backend/v4/common/services/team_service.py

@@ -481,12 +481,6 @@ async def validate_team_search_indexes(
                     error_msg = "Team configuration references search indexes but no Azure Search endpoint is configured"
                     self.logger.warning(error_msg)
                     return False, [error_msg]
-                else:
-                    # No search endpoint and nothing to validate; skip further validation
-                    self.logger.info(
-                        "No Azure Search endpoint configured and no search indexes or RAG agents to validate - skipping search validation"
-                    )
-                    return True, []
 
             if not index_names:
                 self.logger.info(

src/frontend/src/components/common/TeamSelector.tsx

@@ -709,7 +709,7 @@ const TeamSelector: React.FC<TeamSelectorProps> = ({
               <Button
                 appearance="primary"
                 onClick={handleContinue}
-                disabled={selectionLoading}
+                disabled={!tempSelectedTeam || selectionLoading}
                 className={styles.continueButton}
               >
                 {selectionLoading ? 'Selecting...' : 'Continue'}