Handle Discovery missing-config diagnostics

docs/release-control/v6/internal/subsystems/frontend-primitives.md

@@ -1399,7 +1399,8 @@ AI runtime.
     identified-service summary when the service name, category, version,
     paths, ports, facts, and suggested URL are all absent or placeholders,
     including generic workload types such as `service` or `container` and
-    diagnostic facts such as metadata-only status or missing-config errors.
+    diagnostic facts such as metadata-only status, config-availability
+    failures, or missing-config errors.
     Discovery is an opt-in observed-context layer, not an automatic row-link
     owner. The reducer must carry provenance, observed time, service version,
     endpoint candidates, and URL-source copy so drawer surfaces can show

frontend-modern/src/components/Discovery/__tests__/DiscoveryTab.test.tsx

@@ -62,8 +62,8 @@ describe('DiscoveryTab', () => {
         },
         {
           category: 'config',
-          key: 'missing_config',
-          value: 'nodes/delly/lxc/152.conf not found on host',
+          key: 'config_availability',
+          value: 'missing_node_config',
           source: 'all_commands',
           confidence: 1,
           discovered_at: '2026-05-19T00:00:00Z',

frontend-modern/src/components/Infrastructure/__tests__/ResourceDetailDrawer.discovery.test.ts

@@ -317,8 +317,8 @@ describe('resource drawer discovery promotion', () => {
         },
         {
           category: 'config',
-          key: 'missing_config',
-          value: 'nodes/delly/lxc/152.conf not found on host',
+          key: 'config_availability',
+          value: 'missing_node_config',
           source: 'all_commands',
           confidence: 1,
           discovered_at: '2026-05-19T00:00:00Z',

frontend-modern/src/components/Workloads/GuestDrawer.test.tsx

@@ -267,8 +267,8 @@ describe('GuestDrawer', () => {
           },
           {
             category: 'config',
-            key: 'missing_config',
-            value: 'nodes/delly/lxc/152.conf not found on host',
+            key: 'config_availability',
+            value: 'missing_node_config',
             source: 'all_commands',
             confidence: 1,
             discovered_at: '2026-05-19T00:00:00Z',

frontend-modern/src/utils/__tests__/discoveryPresentation.test.ts

@@ -246,8 +246,8 @@ describe('discoveryPresentation', () => {
           },
           {
             category: 'config',
-            key: 'missing_config',
-            value: 'nodes/delly/lxc/152.conf not found on host',
+            key: 'config_availability',
+            value: 'missing_node_config',
             source: 'all_commands',
             confidence: 1,
             discovered_at: '2026-05-19T00:00:00Z',

frontend-modern/src/utils/discoveryPresentation.ts

@@ -79,7 +79,9 @@ const isMeaningfulDiscoveryFact = (fact: DiscoveryFact): boolean => {
   const source = normalizeDiscoveryToken(fact.source);
   if (!isMeaningfulDiscoveryText(fact.value)) return false;
   if (key === 'status' && source === 'metadata') return false;
+  if (key.includes('availability') && value.includes('missing')) return false;
   if (key.startsWith('missing') || key.endsWith('missing')) return false;
+  if (value.startsWith('missing ') || value.includes(' missing ')) return false;
   if (
     value.includes('does not exist') ||
     value.includes('not found') ||