Feat(Library): Enhance metadata handling and display

Improves search filtering to include summary, headline, keywords, and entities from item metadata.
Adds comprehensive metadata display (summary, chips, entities) on content cards.
Introduces deep enrichment status indicators and adds functionality to trigger metadata generation.

src/LibraryManager.jsx

@@ -19,7 +19,7 @@ function itemSyncMeta(item) {
       status,
       progress: 100,
       label: 'Available',
-      detail: detail || (enrichEnabled ? 'Ready in chat with enrichment enabled.' : 'Ready in chat with raw indexing only.')
+      detail: detail || (enrichEnabled ? 'Ready with standard metadata and deep enrichment.' : 'Ready with standard metadata.')
     }
   }
   if (status === 'failed') {
@@ -287,7 +287,17 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
           body: JSON.stringify({ rel: item.rel, enabled })
         })
         return expectJson(response)
-      })
+      }, enabled ? 'Deep enrichment enabled. Metadata is being updated.' : 'Using standard metadata only.')
+    } catch {}
+  }
+
+  async function generateMetadata() {
+    if (!library) return
+    try {
+      await runAction(async () => {
+        const response = await fetch(`${apiBase}/libraries/${library.slug}/jobs/prepare`, { method: 'POST' })
+        return expectJson(response)
+      }, 'Generating metadata for this database.')
     } catch {}
   }
 
@@ -311,9 +321,20 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
   const filteredItems = useMemo(() => {
     const term = search.trim().toLowerCase()
     if (!term) return items
-    return items.filter(item => [item.title, item.name, item.path, item.url, item.kind]
+    return items.filter(item => [
+      item.title,
+      item.name,
+      item.path,
+      item.url,
+      item.kind,
+      item.metadata?.headline,
+      item.metadata?.summary,
+      ...(item.metadata?.keywords || []),
+      ...(item.metadata?.entities || []).map(entity => entity?.name)
+    ]
       .some(value => String(value || '').toLowerCase().includes(term)))
   }, [items, search])
+  const hasMissingMetadata = items.some(item => !['ready', 'fallback'].includes(item?.metadata?.status))
 
   useEffect(() => {
     if (!library?.slug) {
@@ -415,6 +436,9 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
               const itemId = item.item_id || item.sha256 || item.rel
               const isExpanded = expandedItemId === itemId
               const preview = contentPreviews[itemId]
+              const metadata = item.metadata || {}
+              const keywords = Array.isArray(metadata.keywords) ? metadata.keywords.slice(0, 6) : []
+              const entities = Array.isArray(metadata.entities) ? metadata.entities.slice(0, 4) : []
               return (
                 <article key={itemId} className={`library-content-card kind-${item.kind || 'file'} ${isExpanded ? 'expanded' : ''}`}>
                   <div className="library-content-card-header">
@@ -424,7 +448,29 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
                   <div className="library-file-name">{item.title || item.name || item.path}</div>
                   <div className="library-file-path">{source}</div>
                   <div className={`library-file-mode ${item.enrich_enabled ? 'enabled' : ''}`}>
-                    {item.enrich_enabled ? 'Enrichment on' : 'Raw only'}
+                    {item.enrich_enabled ? 'Deep enrichment' : 'Standard'}
+                  </div>
+                  <div className={`library-item-metadata status-${metadata.status || 'missing'}`}>
+                    {metadata.summary ? (
+                      <p>{metadata.summary}</p>
+                    ) : (
+                      <p className="muted-copy">
+                        {metadata.status === 'pending' ? 'Metadata is being generated.' : 'No automatic metadata has been generated yet.'}
+                      </p>
+                    )}
+                    {keywords.length > 0 && (
+                      <div className="library-metadata-chips" aria-label="Keywords">
+                        {keywords.map(keyword => <span key={keyword}>{keyword}</span>)}
+                      </div>
+                    )}
+                    {entities.length > 0 && (
+                      <div className="library-metadata-entities">
+                        {entities.map(entity => (
+                          <span key={`${entity.name}-${entity.type}`}>{entity.name}{entity.type ? ` · ${entity.type}` : ''}</span>
+                        ))}
+                      </div>
+                    )}
+                    {metadata.status === 'fallback' && <div className="library-metadata-warning">Local model metadata was unavailable; Heimgeist used a text fallback.</div>}
                   </div>
                   <div className="library-file-sync">
                     <div className="library-file-sync-detail">{sync.detail}</div>
@@ -456,7 +502,7 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
                     {item.kind === 'website' && <button className="button ghost" disabled={busy} onClick={() => refreshWebsite(item)}>Refresh</button>}
                     {(!item.kind || item.kind === 'file') && <button className="button ghost" onClick={() => desktopApi.openPath(item.path)}>Open</button>}
                     <button className="button ghost" disabled={busy || isSyncing} onClick={() => updateEnrichment(item, !item.enrich_enabled)}>
-                      {item.enrich_enabled ? 'Use Raw Only' : 'Enable Enrich'}
+                      {item.enrich_enabled ? 'Use Standard' : 'Enable Deep'}
                     </button>
                     <button className="button ghost" disabled={busy || isSyncing} onClick={() => removeItem(item)}>Remove</button>
                   </div>
@@ -473,6 +519,9 @@ export default function LibraryManager({ apiBase, library, jobs, onRefresh }) {
         <button className="button" disabled={busy} onClick={addPaths}>Add Files</button>
         <button className="button" disabled={busy} onClick={() => { closeForm(); setFormMode('text') }}>Add Text</button>
         <button className="button" disabled={busy} onClick={() => { closeForm(); setFormMode('website') }}>Add Website</button>
+        {items.length > 0 && hasMissingMetadata && !isSyncing && isReadyForChat && (
+          <button className="button ghost" disabled={busy} onClick={generateMetadata}>Generate Metadata</button>
+        )}
         {items.length > 0 && !isSyncing && !isReadyForChat && (
           <button className="button ghost" disabled={busy} onClick={retrySync}>Retry Sync</button>
         )}