fix(frontend): render markdown descriptions properly, fix tooltip/banner wording

- Wrap 8 previously-raw description fields in MarkdownText so imported
  markdown (links, bold, lists, MITRE citations) renders instead of
  showing literal syntax: campaign cards, D3FEND countermeasure
  descriptions, compliance framework/control descriptions, detection
  rule descriptions, threat-actor and technique reference descriptions,
  and the RT-import preview description
- Fix the "Validated" status tooltip claiming a "≥2 tests" threshold
  when the real rule is ≥1 validated test with full detection; reworded
  the adjacent "Partial" tooltip for the same clarity
- Generalize the technique review_required banner text away from
  "MITRE ATT&CK sync" — review can also be triggered by Atomic/Caldera/
  Elastic/Sigma/LOLBAS imports, intel scans, and stale-detection checks

frontend/src/pages/CampaignsPage.tsx

@@ -14,6 +14,7 @@ import {
 import { listCampaigns, createCampaign, generateCampaignFromThreatActor, type CampaignSummary } from "../api/campaigns";
 import { getThreatActors, type ThreatActorSummary } from "../api/threat-actors";
 import { useAuth } from "../context/AuthContext";
+import MarkdownText from "../components/MarkdownText";
 
 const statusColors: Record<string, string> = {
   draft: "bg-gray-800/50 text-gray-400 border-gray-600/30",
@@ -378,9 +379,10 @@ export default function CampaignsPage() {
                 {campaign.name}
               </h3>
               {campaign.description && (
-                <p className="mt-1 text-xs text-gray-400 line-clamp-2">
-                  {campaign.description}
-                </p>
+                <MarkdownText
+                  content={campaign.description}
+                  className="mt-1 text-xs text-gray-400 line-clamp-2"
+                />
               )}
 
               {/* Threat Actor */}

frontend/src/pages/CompliancePage.tsx

@@ -15,6 +15,7 @@ import {
 import { useAuth } from "../context/AuthContext";
 import ComplianceGauge from "../components/compliance/ComplianceGauge";
 import ControlsTable from "../components/compliance/ControlsTable";
+import MarkdownText from "../components/MarkdownText";
 
 export default function CompliancePage() {
   const [selectedFrameworkId, setSelectedFrameworkId] = useState<string | null>(null);
@@ -238,7 +239,10 @@ export default function CompliancePage() {
                 </a>
               )}
             </div>
-            <p className="text-xs leading-relaxed text-gray-400">{activeFramework.description}</p>
+            <MarkdownText
+              content={activeFramework.description}
+              className="text-xs leading-relaxed text-gray-400"
+            />
           </div>
         </div>
       )}

frontend/src/pages/ImportRTPage.tsx

@@ -17,6 +17,7 @@ import {
   Braces,
 } from "lucide-react";
 import { importRT, type RTImportPayload, type RTTechniqueEntry, type RTEvidenceEntry } from "../api/tests";
+import MarkdownText from "../components/MarkdownText";
 
 /* ── Template JSON ─────────────────────────────────────────────────── */
 
@@ -324,7 +325,7 @@ export default function ImportRTPage() {
                 <span className="text-amber-400">{preview.techniques.length} techniques</span>
               </p>
               {preview.description && (
-                <p className="mt-1 text-xs text-gray-400">{preview.description}</p>
+                <MarkdownText content={preview.description} className="mt-1 text-xs text-gray-400" />
               )}
             </div>
             <button

frontend/src/pages/TechniqueDetailPage.tsx

@@ -289,10 +289,10 @@ export default function TechniqueDetailPage() {
           <AlertTriangle className="mt-0.5 h-5 w-5 shrink-0 text-amber-400" />
           <div className="flex-1 min-w-0">
             <p className="text-sm font-medium text-amber-300">
-              This technique has been updated in MITRE ATT&CK
+              This technique needs review
             </p>
             <p className="mt-0.5 text-xs text-amber-400/70">
-              The MITRE ATT&CK sync detected changes to this technique.
+              New intel, detection rules, or a MITRE ATT&CK update were found for this technique.
               {technique.mitre_last_modified && (
                 <> Last modified in ATT&CK: <span className="font-mono">{technique.mitre_last_modified.slice(0, 10)}</span>.</>
               )}
@@ -694,7 +694,10 @@ export default function TechniqueDetailPage() {
                   <div className="min-w-0 flex-1">
                     <p className="text-sm font-medium text-gray-200">{ref.source_name}</p>
                     {ref.description && (
-                      <p className="mt-0.5 line-clamp-2 text-xs text-gray-500">{ref.description}</p>
+                      <MarkdownText
+                        content={ref.description}
+                        className="mt-0.5 line-clamp-2 text-xs text-gray-500"
+                      />
                     )}
                   </div>
                   <a

frontend/src/pages/ThreatActorDetailPage.tsx

@@ -617,7 +617,7 @@ export default function ThreatActorDetailPage() {
                   <span className="text-gray-400">{ref.source}</span>
                 )}
                 {ref.description && (
-                  <span className="ml-2 text-gray-500">{ref.description}</span>
+                  <MarkdownText content={ref.description} className="ml-2 inline text-gray-500 [&_p]:inline" />
                 )}
               </li>
             ))}