feat(bisaya-course): restructure core patterns and enhance vocabulary preparation

- Updated core patterns in various scripts to use an object format with target phrases and glosses, improving clarity and usability for learners.
- Enhanced the VocabService to normalize core pattern entries, ensuring consistent handling of vocabulary data.
- Introduced new vocabulary preparation steps in the VocabLessonView, guiding users through active review processes before engaging with the vocabulary trainer.
- Added localization support for new vocabulary preparation hints and instructions in multiple languages, enhancing user experience across the application.

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

@@ -445,6 +445,14 @@
                 "grammarImpulse": "Impulso gramatical",
                 "learningGoals": "Objetivos",
                 "corePatterns": "Patrones básicos",
+                "corePatternsHint": "Primero la lengua meta; debajo, el significado en tu idioma.",
+                "vocabPrepTitle": "Preparación antes del entrenador de vocabulario",
+                "vocabPrepStep1": "Lee una vez los patrones clave y la lista de palabras (idioma nativo ↔ lengua meta).",
+                "vocabPrepConfirm1": "Primera lectura hecha",
+                "vocabPrepStep2": "Repasa los mismos elementos otra vez (repaso activo, aún sin practicar).",
+                "vocabPrepConfirm2": "Segunda lectura hecha",
+                "vocabPrepReady": "Ya puedes iniciar el entrenador de vocabulario.",
+                "vocabTrainerLockedHint": "Confirma primero los dos pasos de preparación arriba.",
                 "speakingTasks": "Tareas orales",
                 "speakingPrompt": "Tarea oral",
                 "practicalTasks": "Tareas prácticas",