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>

cli/src/commands/heartbeat-run.ts

@@ -174,6 +174,8 @@ export async function heartbeatRun(opts: HeartbeatRunOptions): Promise<void> {
       }
       if (typeof logResult.nextOffset === "number") {
         logOffset = logResult.nextOffset;
+      } else if (logResult.content) {
+        logOffset += Buffer.byteLength(logResult.content, "utf8");
       }
     }