fix: brain UX — links open URL, notes are editable, remove meta grid

- Link card screenshots now open the original URL in new tab
- Card content area opens the detail sheet
- Notes: clicking the note body in detail sheet enters edit mode
- Removed Folder/Confidence/Status/Saved meta grid from detail
- Replaced with single inline folder + date line
- Tags still clickable for filtering

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend-v2/src/lib/pages/brain/AtelierBrainPage.svelte

@@ -40,6 +40,8 @@
 
   // Detail
   let selectedItem = $state<BrainItem | null>(null);
+  let editingNote = $state(false);
+  let editNoteContent = $state('');
 
   // Folder counts
   let folderCounts = $state<Record<string, number>>({});
@@ -117,6 +119,26 @@
     searching = false;
   }
 
+  function startEditNote() {
+    if (!selectedItem) return;
+    editNoteContent = selectedItem.raw_content || '';
+    editingNote = true;
+  }
+
+  async function saveNote() {
+    if (!selectedItem) return;
+    try {
+      await api(`/items/${selectedItem.id}`, {
+        method: 'PATCH',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ raw_content: editNoteContent }),
+      });
+      selectedItem.raw_content = editNoteContent;
+      editingNote = false;
+      await loadItems();
+    } catch { /* silent */ }
+  }
+
   async function deleteItem(id: string) {
     try {
       await api(`/items/${id}`, { method: 'DELETE' });
@@ -309,10 +331,10 @@
     {:else}
       <div class="masonry">
         {#each items as item (item.id)}
-          <button class="card" class:is-note={item.type === 'note'} class:is-processing={item.processing_status !== 'ready'} onclick={() => selectedItem = item}>
+          <div class="card" class:is-note={item.type === 'note'} class:is-processing={item.processing_status !== 'ready'}>
-            <!-- Screenshot for links -->
+            <!-- Screenshot for links — clicking opens the URL -->
             {#if item.type === 'link' && item.assets?.some(a => a.asset_type === 'screenshot')}
-              <div class="card-thumb">
+              <a class="card-thumb" href={item.url} target="_blank" rel="noopener">
                 <img src="/api/brain/storage/{item.id}/screenshot/screenshot.png" alt="" loading="lazy" />
                 {#if item.processing_status !== 'ready'}
                   <div class="card-processing-overlay">
@@ -320,12 +342,12 @@
                     Processing...
                   </div>
                 {/if}
-              </div>
+              </a>
             {:else if item.type === 'note'}
-              <!-- Note shows content directly -->
+              <!-- Note — clicking opens detail for editing -->
-              <div class="card-note-body">
+              <button class="card-note-body" onclick={() => { selectedItem = item; editingNote = false; }}>
                 {(item.raw_content || '').slice(0, 200)}{(item.raw_content || '').length > 200 ? '...' : ''}
-              </div>
+              </button>
             {:else if item.processing_status !== 'ready'}
               <div class="card-placeholder">
                 <span class="processing-dot"></span>
@@ -333,8 +355,8 @@
               </div>
             {/if}
 
-            <!-- Card content -->
+            <!-- Card content — click opens detail -->
-            <div class="card-content">
+            <button class="card-content" onclick={() => { selectedItem = item; editingNote = false; }}>
               <div class="card-title">{item.title || 'Untitled'}</div>
               {#if item.url}
                 <div class="card-domain">{(() => { try { return new URL(item.url).hostname; } catch { return ''; } })()}</div>
@@ -355,8 +377,8 @@
                   <span class="card-date">{formatDate(item.created_at)}</span>
                 </div>
               </div>
-            </div>
             </button>
+          </div>
         {/each}
       </div>
     {/if}
@@ -383,39 +405,31 @@
         <a class="detail-url" href={selectedItem.url} target="_blank" rel="noopener">{selectedItem.url}</a>
       {/if}
 
-      {#if selectedItem.raw_content}
+      {#if selectedItem.type === 'note'}
+        <!-- Editable note content -->
         <div class="detail-content">
-          <div class="content-label">Note</div>
+          {#if editingNote}
-          <div class="content-body">{selectedItem.raw_content}</div>
+            <textarea
+              class="note-editor"
+              bind:value={editNoteContent}
+              onkeydown={(e) => { if (e.key === 'Escape') editingNote = false; }}
+            ></textarea>
+            <div class="note-editor-actions">
+              <button class="action-btn" onclick={saveNote}>Save</button>
+              <button class="action-btn ghost" onclick={() => editingNote = false}>Cancel</button>
+            </div>
+          {:else}
+            <button class="content-body clickable" onclick={startEditNote}>
+              {selectedItem.raw_content || 'Empty note — click to edit'}
+            </button>
+          {/if}
         </div>
       {/if}
 
       {#if selectedItem.summary}
-        <div class="detail-summary">
+        <div class="detail-summary">{selectedItem.summary}</div>
-          <div class="content-label">AI Summary</div>
-          {selectedItem.summary}
-        </div>
       {/if}
 
-      <div class="detail-meta-grid">
-        <div class="meta-block">
-          <div class="meta-label">Folder</div>
-          <div class="meta-value">{selectedItem.folder || '—'}</div>
-        </div>
-        <div class="meta-block">
-          <div class="meta-label">Confidence</div>
-          <div class="meta-value">{selectedItem.confidence ? (selectedItem.confidence * 100).toFixed(0) + '%' : '—'}</div>
-        </div>
-        <div class="meta-block">
-          <div class="meta-label">Status</div>
-          <div class="meta-value">{selectedItem.processing_status}</div>
-        </div>
-        <div class="meta-block">
-          <div class="meta-label">Saved</div>
-          <div class="meta-value">{new Date(selectedItem.created_at).toLocaleDateString()}</div>
-        </div>
-      </div>
-
       {#if selectedItem.tags && selectedItem.tags.length > 0}
         <div class="detail-tags">
           {#each selectedItem.tags as tag}
@@ -424,12 +438,17 @@
         </div>
       {/if}
 
+      <div class="detail-meta-line">
+        {#if selectedItem.folder}<span>{selectedItem.folder}</span>{/if}
+        <span>{formatDate(selectedItem.created_at)}</span>
+      </div>
+
       <div class="detail-actions">
-        <button class="action-btn" onclick={() => reprocessItem(selectedItem.id)}>Reprocess</button>
-        <button class="action-btn ghost" onclick={() => { if (confirm('Delete this item?')) deleteItem(selectedItem.id); }}>Delete</button>
         {#if selectedItem.url}
           <a class="action-btn" href={selectedItem.url} target="_blank" rel="noopener">Open original</a>
         {/if}
+        <button class="action-btn ghost" onclick={() => reprocessItem(selectedItem.id)}>Reclassify</button>
+        <button class="action-btn ghost" onclick={() => { if (confirm('Delete this item?')) deleteItem(selectedItem.id); }}>Delete</button>
       </div>
     </div>
   </div>
@@ -568,12 +587,14 @@
 
   .card.is-processing { opacity: 0.7; }
 
-  /* Card thumbnail */
+  /* Card thumbnail — link opens URL */
   .card-thumb {
+    display: block;
     width: 100%;
     position: relative;
     overflow: hidden;
     background: rgba(244,237,229,0.6);
+    cursor: pointer;
   }
   .card-thumb img {
     width: 100%;
@@ -594,7 +615,7 @@
   }
   @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
 
-  /* Note card body */
+  /* Note card body — click opens detail */
   .card-note-body {
     padding: 18px 18px 0;
     font-size: 0.92rem;
@@ -602,6 +623,12 @@
     line-height: 1.65;
     white-space: pre-wrap;
     word-break: break-word;
+    background: none;
+    border: none;
+    text-align: left;
+    font-family: var(--font);
+    cursor: pointer;
+    width: 100%;
   }
 
   .card-placeholder {
@@ -611,10 +638,18 @@
     background: rgba(244,237,229,0.4);
   }
 
-  /* Card content */
+  /* Card content — button for detail click */
   .card-content {
     padding: 14px 18px 16px;
+    background: none;
+    border: none;
+    text-align: left;
+    font-family: var(--font);
+    cursor: pointer;
+    width: 100%;
+    transition: background 160ms;
   }
+  .card-content:hover { background: rgba(255,248,242,0.5); }
 
   .card-title {
     font-size: 0.95rem;
@@ -728,33 +763,41 @@
   .detail-url:hover { color: #1e1812; text-decoration: underline; }
 
   .detail-content {
-    margin-bottom: 20px; padding-bottom: 20px;
+    margin-bottom: 20px;
-    border-bottom: 1px solid rgba(35,26,17,0.08);
-  }
-  .content-label {
-    font-size: 11px; text-transform: uppercase;
-    letter-spacing: 0.12em; color: #7d6f61; margin-bottom: 8px;
   }
   .content-body {
+    display: block; width: 100%; text-align: left;
     font-size: 1rem; color: #1e1812; line-height: 1.7;
     white-space: pre-wrap; word-break: break-word;
+    background: none; border: none; font-family: var(--font);
+    padding: 14px 16px; border-radius: 14px;
+    transition: background 160ms;
   }
+  .content-body.clickable { cursor: text; }
+  .content-body.clickable:hover { background: rgba(255,255,255,0.6); }
+
+  .note-editor {
+    width: 100%; min-height: 200px; padding: 14px 16px;
+    border-radius: 14px; border: 1.5px solid rgba(179,92,50,0.3);
+    background: rgba(255,255,255,0.8); color: #1e1812;
+    font-size: 1rem; font-family: var(--font); line-height: 1.7;
+    resize: vertical; outline: none;
+  }
+  .note-editor:focus { border-color: rgba(179,92,50,0.5); box-shadow: 0 0 0 4px rgba(179,92,50,0.06); }
+  .note-editor-actions { display: flex; gap: 8px; margin-top: 10px; }
+
   .detail-summary {
-    font-size: 0.95rem; color: #3d342c; line-height: 1.6;
+    font-size: 0.92rem; color: #5c5046; line-height: 1.6;
-    margin-bottom: 20px; padding-bottom: 20px;
+    margin-bottom: 16px;
-    border-bottom: 1px solid rgba(35,26,17,0.08);
+    font-style: italic;
   }
 
-  .detail-meta-grid {
+  .detail-meta-line {
-    display: grid; grid-template-columns: 1fr 1fr;
+    display: flex; gap: 12px; font-size: 0.8rem; color: #8c7b69;
-    gap: 12px; margin-bottom: 20px;
+    margin-bottom: 16px;
   }
-  .meta-block {
+
-    background: rgba(255,255,255,0.58); border-radius: 14px;
+  /* meta grid removed — folder/date shown inline */
-    padding: 14px; border: 1px solid rgba(35,26,17,0.06);
-  }
-  .meta-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: #7d6f61; margin-bottom: 4px; }
-  .meta-value { font-size: 1rem; font-weight: 600; color: #1e1812; }
 
   .detail-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
   .detail-tag {
@@ -797,6 +840,6 @@
     .signal-strip { grid-template-columns: 1fr 1fr; }
     .masonry { columns: 1; }
     .detail-sheet { width: 100%; padding: 20px; }
-    .detail-meta-grid { grid-template-columns: 1fr; }
+    /* detail meta grid removed */
   }
 </style>