fix(sprint-5/etapa-4b): library useEffect usa user.id no user ref — corta contención processLock en guardar perfil

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/ProfileSheet.tsx

@@ -18,8 +18,6 @@ export function ProfileSheet({ open, onOpenChange }: ProfileSheetProps) {
   const [company, setCompany] = useState('')
   const [saving, setSaving] = useState(false)
 
-  console.log('[ProfileSheet] render — open:', open, 'saving:', saving, 'user.name:', user?.name)
-
   useEffect(() => {
     if (open && user) {
       setName(user.name)
@@ -32,7 +30,6 @@ export function ProfileSheet({ open, onOpenChange }: ProfileSheetProps) {
 
   async function handleSave() {
     if (!user || !name.trim()) return
-    console.log('[ProfileSheet] saveProfile start — name:', name.trim(), 'company:', company.trim())
     setSaving(true)
     try {
       const { error } = await supabase
@@ -40,12 +37,10 @@ export function ProfileSheet({ open, onOpenChange }: ProfileSheetProps) {
         .update({ name: name.trim(), company: company.trim() || null })
         .eq('id', user.id)
       if (error) throw error
-      console.log('[ProfileSheet] DB updated')
       updateUser({ name: name.trim(), company: company.trim() || undefined })
-      console.log('[ProfileSheet] local state updated')
       onOpenChange(false)
     } catch (err) {
-      console.error('[ProfileSheet] Error al guardar perfil:', err)
+      console.error('Error al guardar perfil:', err)
     } finally {
       setSaving(false)
     }

src/features/library/LibraryPage.tsx

@@ -757,7 +757,7 @@ export function LibraryPage() {
   useEffect(() => {
     if (!user) return // no fetchear hasta tener usuario confirmado (evita race condition con sesión Supabase)
     load()
-  }, [load, user])
+  }, [load, user?.id])
 
   function navigateToGroup(groupId: string | null) {
     setTransitioning(true)