feat: Picdrop-style color tags (Rot/Orange/Gruen/Final) in library + in .md metadata; tap-to-open fullscreen for iPhone Save-to-Photos

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XNQ8ghPfzAfsyVYd6HgFb6

src/pages/api/items/[id].ts

@@ -12,9 +12,13 @@ export const PATCH: APIRoute = async ({ params, request, locals }) => {
   const sets: string[] = []; const args: any[] = [];
   if (typeof b.filename === 'string') { args.push(b.filename.trim()); sets.push(`filename=$${args.length}`); }
   if ('folder_id' in b) { args.push(b.folder_id || null); sets.push(`folder_id=$${args.length}`); }
+  if ('color_tag' in b) {
+    const t = ['red', 'orange', 'green', 'final'].includes(b.color_tag) ? b.color_tag : null;
+    args.push(t); sets.push(`color_tag=$${args.length}`);
+  }
   if (!sets.length) return json({ error: 'Nichts zu ändern.' }, 400);
   args.push(params.id);
-  const row = await one(`UPDATE items SET ${sets.join(',')} WHERE id=$${args.length} RETURNING id, filename, folder_id`, args);
+  const row = await one(`UPDATE items SET ${sets.join(',')} WHERE id=$${args.length} RETURNING id, filename, folder_id, color_tag`, args);
   return json({ item: row });
 };
 

src/pages/api/items/index.ts

@@ -19,6 +19,7 @@ export const GET: APIRoute = async ({ url, locals }) => {
   if (!isAdmin && !shared) add('j.created_by = ?', locals.user.uid);
 
   if (q.get('folder')) add('i.folder_id = ?', q.get('folder'));
+  if (q.get('tag')) add('i.color_tag = ?', q.get('tag'));
   if (q.get('delivery')) add('i.delivery_status = ?', q.get('delivery'));
   if (q.get('by')) add('j.created_by = ?', q.get('by'));
   if (q.get('format')) add('i.output_px = ?', q.get('format'));
@@ -28,7 +29,7 @@ export const GET: APIRoute = async ({ url, locals }) => {
   }
 
   const rows = await query(
-    `SELECT i.id, i.filename, i.output_px, i.has_alpha, i.result_path, i.thumb_path, i.folder_id,
+    `SELECT i.id, i.filename, i.output_px, i.has_alpha, i.result_path, i.thumb_path, i.folder_id, i.color_tag,
             i.delivery_status, i.nas_status, i.prompt_used, i.created_at, i.model_used, i.variant_of, j.mode,
             ${(s?.anonymous_generations && !isAdmin) ? 'NULL' : 'u.display_name'} AS by_name,
             j.recipe_snapshot->'tasks' AS tasks