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/intelligence-hub.tsx

@@ -149,7 +149,7 @@ export interface IntelligenceHubProps {
   onDismissInsight: (insight: IntelBriefingInsight) => void
   onDismissBridgeSuggestion: (s: IntelBridgeSuggestion) => void
   onCreateBridgeSuggestion: (s: IntelBridgeSuggestion) => void
-  onOpenInsightNote: (insight: IntelBriefingInsight, noteId: string) => void
+  onOpenInsightNote: (insight: IntelBriefingInsight, noteId: string, peekNoteId?: string | null) => void
   dismissingInsightId: string | null
   actingBridgeSuggestionKey: string | null
   prefersReducedMotion: boolean
@@ -334,7 +334,7 @@ export function IntelligenceHub({
               </button>
               <button
                 type="button"
-                onClick={() => onOpenInsightNote(insight, insight.note2.id)}
+                onClick={() => onOpenInsightNote(insight, insight.note1.id, insight.note2.id)}
                 className="inline-flex items-center gap-1 text-[8.5px] font-mono uppercase font-bold px-2.5 py-1.5 rounded-lg border border-border/40 hover:border-indigo-400/40 transition-colors"
               >
                 <GitCompare size={9} />