feat(vocab): enhance vocabulary exercises and localization support

- Updated core patterns in BISAYA_PHASE5_DIDACTICS to include gloss translations for better understanding.
- Refactored vocabulary exercise generation in update-food-care-exercises.js to improve randomization and user engagement.
- Added new exercise types and improved question structures for vocabulary lessons, enhancing the learning experience.
- Enhanced localization files for German, English, and Spanish to support new exercise features and improve user guidance.
- Updated VocabLessonView to incorporate sequential navigation for exercises, providing a more structured learning flow.

frontend/src/i18n/locales/de/socialnetwork.json

@@ -517,6 +517,12 @@
                 "exerciseProgressLabel": "Fortschritt",
                 "exerciseTargetLabel": "Benötigt",
                 "exerciseCardLabel": "Aufgabe {number}",
+                "exerciseSequentialProgress": "Frage {current} von {total}",
+                "exerciseSequentialBack": "Zurück",
+                "exerciseSequentialNext": "Weiter",
+                "exerciseWrongTitle": "Noch nicht richtig",
+                "exerciseReinforcementGoPractice": "Zum Üben wechseln",
+                "exerciseReinforcementStay": "Bei der Prüfung bleiben",
                 "exerciseStatusOpen": "Offen",
                 "exerciseStatusCorrect": "Erledigt",
                 "exerciseStatusRetry": "Nochmal prüfen",
@@ -548,6 +554,8 @@
                 "vocabPrepTitle": "Vorbereitung vor dem Vokabeltrainer",
                 "vocabPrepStep1": "Lies Kernmuster und Wortliste (Deutsch ↔ Zielsprache) einmal in Ruhe durch.",
                 "vocabPrepProgress": "Durchgang {pass}: Begriff {current} von {total}",
+                "vocabPrepTargetLabel": "Zielsprache",
+                "vocabPrepGlossLabel": "Deutsch",
                 "vocabPrepNextItem": "Nächster Begriff",
                 "vocabPrepConfirm1": "Erste Durchsicht erledigt",
                 "vocabPrepStep2": "Gehe die gleichen Begriffe noch einmal durch (aktive Wiederholung, ohne zu üben).",