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/pages/CruciblePage.tsx

@@ -11,6 +11,7 @@ import { primaryGroupForAgent } from '../help/fleetGroups';
 import { useFleetGroups } from '../hooks/useFleetGroups';
 import { useMatrixRain } from '../context/MatrixRainContext';
 import { parseFullSysCheckMessage, type FullSysCheckReport } from '../types/syscheck';
+import type { WSCommandResult } from '../types/ws';
 import { sanitizeScreenshotBase64 } from '../help/screenshotDownload';
 import FullSysCheckPanel from '../components/Fleet/FullSysCheckPanel';
 import CrucibleExpandedOps from '../components/Fleet/CrucibleExpandedOps';
@@ -306,7 +307,7 @@ const TERM_RENDER_CAP = 400;
 // ── Component ──────────────────────────────────────────────────────────────
 
 export default function CruciblePage() {
-  const { agents, commandResults } = useWebSocket();
+  const { agents, commandResults, latestMessage } = useWebSocket();
   const { setCrucibleFocus } = useMatrixRain();
 
   // Selection
@@ -322,6 +323,7 @@ export default function CruciblePage() {
   const termEndRef = useRef<HTMLDivElement>(null);
   const cmdRef = useRef<HTMLInputElement>(null);
   const lastSeqRef = useRef(0);
+  const lastLatestCmdRef = useRef<typeof latestMessage>(null);
 
   // Command history
   const [cmdHistory, setCmdHistory] = useState<string[]>([]);
@@ -435,12 +437,18 @@ export default function CruciblePage() {
 
   useEffect(() => {
     if (!commandResults || commandResults.length === 0) return;
-    const newEntries = commandResults.filter((r) => r._seq > lastSeqRef.current);
+    const newEntries = commandResults.filter(
+      (r) => typeof r._seq === 'number' && r._seq > lastSeqRef.current,
+    );
     if (newEntries.length === 0) return;
-    lastSeqRef.current = newEntries[newEntries.length - 1]._seq;
 
     const lines: TermLine[] = [];
+    let maxSeq = lastSeqRef.current;
+
     for (const r of newEntries) {
+      if (typeof r._seq === 'number') {
+        maxSeq = Math.max(maxSeq, r._seq);
+      }
       const aid = r.agent_id;
       if (!aid) continue;
 
@@ -517,6 +525,10 @@ export default function CruciblePage() {
         });
       } else {
         const msgLines = msg.split('\n').filter(Boolean);
+        if (msgLines.length === 0) {
+          const label = r.action ? `[${r.action}]` : '[result]';
+          msgLines.push(r.success ? `${label} OK` : `${label} FAILED`);
+        }
         for (const line of msgLines) {
           lines.push({
             id: mkId(), agentId: aid, agentName: name,
@@ -525,12 +537,64 @@ export default function CruciblePage() {
         }
       }
     }
+
+    lastSeqRef.current = maxSeq;
     if (lines.length > 0) {
       setTermLines((prev) => [...prev, ...lines].slice(-2000));
     }
   // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [commandResults]);
 
+  // Backup path: if commandResults batching ever misses an entry, latestMessage
+  // still carries command_result (WS_LATEST_MESSAGE_TYPES includes it).
+  useEffect(() => {
+    if (!latestMessage || latestMessage.type !== 'command_result') return;
+    if (latestMessage === lastLatestCmdRef.current) return;
+    lastLatestCmdRef.current = latestMessage;
+
+    let r = latestMessage.payload as WSCommandResult | string;
+    if (typeof r === 'string') {
+      try {
+        r = JSON.parse(r) as WSCommandResult;
+      } catch {
+        return;
+      }
+    }
+    const aid = r.agent_id;
+    if (!aid) return;
+
+    // commandResults effect owns entries already queued in the provider buffer
+    if (
+      commandResults?.some(
+        (c) => c.agent_id === aid && c.action === r.action && c.message === r.message,
+      )
+    ) {
+      return;
+    }
+
+    const msg = r.message ?? '';
+    const agent = agents.find((a) => a.id === aid);
+    const name = agent?.name ?? aid.slice(0, 8);
+    const targeted = selectedIds.size === 0 || selectedIds.has(aid);
+    const msgLines = msg.split('\n').filter(Boolean);
+    if (msgLines.length === 0) {
+      const label = r.action ? `[${r.action}]` : '[result]';
+      msgLines.push(r.success ? `${label} OK` : `${label} FAILED`);
+    }
+    const lines: TermLine[] = msgLines.map((line) => ({
+      id: mkId(),
+      agentId: aid,
+      agentName: name,
+      isCmd: false,
+      text: line,
+      ts: new Date(),
+      success: r.success,
+      targeted,
+    }));
+    setTermLines((prev) => [...prev, ...lines].slice(-2000));
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [latestMessage, commandResults]);
+
   // ── Selection helpers ──────────────────────────────────────────────────
 
   const toggle = (id: string) =>