feat: env badge in header, inline desc edit, clean up deps

- Header now shows Production/Development with color-coded dot via import.meta.env.PROD
- LinkDashboard: click-to-edit description inline (blur/Enter to save, Escape to cancel)
- LoginPage: fix Azure button label to English
- Remove unused motion and autoprefixer dependencies

src/components/LinkDashboard.tsx

@@ -43,6 +43,8 @@ export default function LinkDashboard({ links, currentUser, onAddLink, onUpdateL
   const [editingId, setEditingId] = useState<string | null>(null);
   const [draft, setDraft] = useState<Draft>(EMPTY_DRAFT);
   const [activeCategory, setActiveCategory] = useState<string>('all');
+  const [editingDescId, setEditingDescId] = useState<string | null>(null);
+  const [descDraft, setDescDraft] = useState('');
 
   const categories = useMemo(() => {
     const set = new Set<string>();
@@ -97,6 +99,16 @@ export default function LinkDashboard({ links, currentUser, onAddLink, onUpdateL
     setDraft(EMPTY_DRAFT);
   };
 
+  const startDescEdit = (link: QuickLink) => {
+    setEditingDescId(link.id);
+    setDescDraft(link.description);
+  };
+
+  const commitDescEdit = (link: QuickLink) => {
+    onUpdateLink({ ...link, description: descDraft.trim() });
+    setEditingDescId(null);
+  };
+
   const handleSubmit = (e: React.FormEvent) => {
     e.preventDefault();
     const title = draft.title.trim();
@@ -239,8 +251,28 @@ export default function LinkDashboard({ links, currentUser, onAddLink, onUpdateL
                         </div>
                       </div>
 
-                      {link.description && (
-                        <p className="text-[11px] text-slate-400 leading-relaxed mt-3 line-clamp-2">{link.description}</p>
+                      {editingDescId === link.id ? (
+                        <textarea
+                          autoFocus
+                          rows={2}
+                          value={descDraft}
+                          onChange={(e) => setDescDraft(e.target.value)}
+                          onBlur={() => commitDescEdit(link)}
+                          onKeyDown={(e) => {
+                            if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); commitDescEdit(link); }
+                            if (e.key === 'Escape') { setEditingDescId(null); }
+                          }}
+                          className="w-full mt-3 bg-slate-950 text-slate-200 text-[11px] border border-emerald-600 rounded px-2 py-1 resize-none focus:outline-none leading-relaxed"
+                          placeholder="Add a description…"
+                        />
+                      ) : (
+                        <p
+                          onClick={() => startDescEdit(link)}
+                          title="Click to edit description"
+                          className={`text-[11px] leading-relaxed mt-3 line-clamp-2 cursor-text ${link.description ? 'text-slate-400 hover:text-slate-200' : 'text-slate-600 italic hover:text-slate-400'} transition-colors`}
+                        >
+                          {link.description || 'Add a description…'}
+                        </p>
                       )}
 
                       {/* Hover actions */}