fix: move pencil/save buttons to start of config bar for consistency

Pencil icon and Save/Cancel buttons now appear at the left side of
the AgentHealth config bar, matching the admin overview table where
the edit column is at the start of each row.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/pages/AgentHealth/AgentHealth.module.css

@@ -106,7 +106,6 @@
   line-height: 1;
   display: inline-flex;
   align-self: flex-end;
-  margin-left: auto;
 }
 
 .configEditBtn:hover {
@@ -118,7 +117,6 @@
   display: flex;
   gap: 8px;
   align-self: flex-end;
-  margin-left: auto;
 }
 
 .configSaveBtn {