Final sweep: Crucible fixes, Path Tracer polish, forge progress, tests green.

Align dashboard subtitle default and UpsertAgent tests with fleet label behavior; WebSocket coalesce and PathForge hardening; Crucible expanded ops and visual DV fixes; Vitest 610/610 and full test-suite pass; trim PROBLEMS.md to open items only.

server/web/src/context/WebSocketProvider.test.tsx

@@ -172,6 +172,45 @@ describe('WebSocketProvider', () => {
     expect(result.current.agentLogs.a1).toBe('log data');
   });
 
+  it('sets latestMessage on command_result', async () => {
+    const { result } = renderHook(() => useWebSocketContext(), { wrapper });
+    await waitForSocket();
+
+    act(() => {
+      latestSocket().emitOpen();
+      latestSocket().emitMessage({
+        type: 'command_result',
+        payload: { agent_id: 'a1', action: 'exec', success: true, message: 'hello' },
+      });
+    });
+
+    expect(result.current.latestMessage?.type).toBe('command_result');
+    expect(result.current.commandResults).toHaveLength(1);
+    expect(result.current.commandResults[0].message).toBe('hello');
+  });
+
+  it('parses stringified command_result payload', async () => {
+    const { result } = renderHook(() => useWebSocketContext(), { wrapper });
+    await waitForSocket();
+
+    act(() => {
+      latestSocket().emitOpen();
+      latestSocket().emitMessage({
+        type: 'command_result',
+        payload: JSON.stringify({
+          agent_id: 'a2',
+          action: 'sysinfo',
+          success: true,
+          message: 'OS info',
+        }),
+      });
+    });
+
+    expect(result.current.commandResults).toHaveLength(1);
+    expect(result.current.commandResults[0].agent_id).toBe('a2');
+    expect(result.current.commandResults[0].message).toBe('OS info');
+  });
+
   it('schedules reconnect after close', async () => {
     MockWebSocket.instances = [];
     renderHook(() => useWebSocketContext(), { wrapper });

server/web/src/context/WebSocketProvider.tsx

@@ -261,7 +261,16 @@ export function WebSocketProvider({ children }: { children: React.ReactNode }) {
             break;
           }
           case 'command_result': {
-            const p = msg.payload as WSCommandResult;
+            // Payload must be an object — a double-encoded string would spread to
+            // char indices and drop agent_id, breaking Crucible terminal routing.
+            let p = msg.payload as WSCommandResult | string;
+            if (typeof p === 'string') {
+              try {
+                p = JSON.parse(p) as WSCommandResult;
+              } catch {
+                break;
+              }
+            }
             const seq = ++cmdSeqRef.current;
             // Cap at 2000; command results are rare (operator-triggered) so this is plenty.
             // Consumers MUST use _seq for change detection — NOT array index — because the