Polish UI components and rework AgentConfigForm

Major AgentConfigForm rework with improved adapter configuration
fields and layout. Refine sidebar, breadcrumbs, and card/tab
components for visual consistency. Clean up page layouts across
Activity, Agents, Approvals, Costs, Dashboard, Goals, Inbox,
Issues, Org, and Projects pages. Minor heartbeat-run CLI fix.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/pages/Projects.tsx

@@ -35,8 +35,7 @@ export function Projects() {
 
   return (
     <div className="space-y-4">
-      <div className="flex items-center justify-between">
-        <h2 className="text-lg font-semibold">Projects</h2>
+      <div className="flex items-center justify-end">
         <Button size="sm" onClick={openNewProject}>
           <Plus className="h-4 w-4 mr-1" />
           Add Project
@@ -56,7 +55,7 @@ export function Projects() {
       )}
 
       {projects && projects.length > 0 && (
-        <div className="border border-border rounded-md">
+        <div className="border border-border">
           {projects.map((project) => (
             <EntityRow
               key={project.id}