feat: dashboard Second Brain, essai 7 jours et vérification e-mail

Rendre le dashboard actionnable (inbox, peek, carte mentale), aligner la facturation sur l’essai 7 jours, et bloquer le login e-mail tant que l’adresse n’est pas confirmée.

Co-authored-by: Cursor <cursoragent@cursor.com>

memento-note/components/note-editor/note-editor-peek-host.tsx

@@ -24,10 +24,19 @@ interface NoteEditorPeekHostProps {
 export function NoteEditorPeekHost({ noteId, fullPage, children }: NoteEditorPeekHostProps) {
   const router = useRouter()
   const searchParams = useSearchParams()
+  const peekNoteId = searchParams.get('peekNote')
   const { t, language } = useLanguage()
   const isRtl = language === 'fa' || language === 'ar'
   const [peekState, setPeekState] = useState<{ note: Note; blockId?: string } | null>(null)
 
+  const stripPeekFromUrl = useCallback(() => {
+    if (!searchParams.get('peekNote')) return
+    const params = new URLSearchParams(searchParams.toString())
+    params.delete('peekNote')
+    const qs = params.toString()
+    router.replace(qs ? `/home?${qs}` : '/home', { scroll: false })
+  }, [router, searchParams])
+
   useEffect(() => {
     const onOpenPeek = (event: Event) => {
       const detail = (event as CustomEvent<NotePeekOpenDetail>).detail
@@ -52,9 +61,25 @@ export function NoteEditorPeekHost({ noteId, fullPage, children }: NoteEditorPee
     }
   }, [noteId, t])
 
+  // Dashboard « Comparer / Lier » : ouvrir la note liée à droite dès que l’éditeur est monté.
+  useEffect(() => {
+    if (!peekNoteId || peekNoteId === noteId) return
+    let cancelled = false
+    void getNoteById(peekNoteId).then((fetched) => {
+      if (cancelled) return
+      if (fetched) {
+        setPeekState(prev => (prev?.note.id === fetched.id ? prev : { note: fetched }))
+      } else {
+        toast.error(t('notePeek.loadFailed'))
+      }
+    })
+    return () => { cancelled = true }
+  }, [peekNoteId, noteId, t])
+
   const handleClosePeek = useCallback(() => {
     setPeekState(null)
-  }, [])
+    stripPeekFromUrl()
+  }, [stripPeekFromUrl])
 
   const handleOpenPeekFully = useCallback(() => {
     if (!peekState) return
@@ -63,6 +88,7 @@ export function NoteEditorPeekHost({ noteId, fullPage, children }: NoteEditorPee
     }))
     const params = new URLSearchParams(searchParams.toString())
     params.set('openNote', peekState.note.id)
+    params.delete('peekNote')
     router.replace(params.toString() ? `/home?${params.toString()}` : '/home', { scroll: false })
     setPeekState(null)
   }, [noteId, peekState, router, searchParams])
@@ -82,6 +108,11 @@ export function NoteEditorPeekHost({ noteId, fullPage, children }: NoteEditorPee
             blockId={peekState.blockId}
             onClose={handleClosePeek}
             onOpenFully={handleOpenPeekFully}
+            onBackToDashboard={
+              searchParams.get('from') === 'dashboard'
+                ? () => router.replace('/home')
+                : undefined
+            }
           />
         )}
       </AnimatePresence>