feat(deck): add daily learning limits and today's study stats

- Add newPerDay and revPerDay fields to Deck model (Anki-style)
- Add settings modal to configure daily limits per deck
- Display today's studied counts (new/review/learning) on deck page
- Add i18n translations for all 8 languages
- Fix JSON syntax errors in fr-FR.json and it-IT.json
- Fix double counting bug in repoGetTodayStudyStats

src/modules/deck/deck-service-dto.ts

@@ -13,6 +13,8 @@ export type ServiceInputUpdateDeck = {
   desc?: string;
   visibility?: Visibility;
   collapsed?: boolean;
+  newPerDay?: number;
+  revPerDay?: number;
 };
 
 export type ServiceInputDeleteDeck = {
@@ -45,6 +47,8 @@ export type ServiceOutputDeck = {
   visibility: Visibility;
   collapsed: boolean;
   conf: unknown;
+  newPerDay: number;
+  revPerDay: number;
   createdAt: Date;
   updatedAt: Date;
   cardCount?: number;