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/ProjectDetail.tsx

@@ -87,7 +87,7 @@ export function ProjectDetail() {
           {projectIssues.length === 0 ? (
             <p className="text-sm text-muted-foreground">No issues in this project.</p>
           ) : (
-            <div className="border border-border rounded-md">
+            <div className="border border-border">
               {projectIssues.map((issue) => (
                 <EntityRow
                   key={issue.id}