feat(admin): add potential fathers retrieval for character management

- Implemented a new method in AdminService to fetch potential fathers for a given character based on existing relationships.
- Updated AdminController to expose this functionality via a new API endpoint.
- Enhanced adminRouter to include the route for retrieving potential fathers.
- Modified frontend components to allow selection of potential fathers during pregnancy and birth management.
- Updated internationalization files to include new translation keys related to father selection.

backend/scripts/update-bisaya-didactics.js

@@ -8,6 +8,7 @@
 
 import { sequelize } from '../utils/sequelize.js';
 import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import { getBisayaLessonPedagogy } from './bisaya-course-phase2-pedagogy.js';
 
 const LESSON_DIDACTICS = {
   'Begrüßungen & Höflichkeit': {
@@ -129,14 +130,23 @@ async function updateBisayaDidactics() {
   for (const row of lessons) {
     const lesson = await VocabCourseLesson.findByPk(row.id);
     const didactics = LESSON_DIDACTICS[lesson.title];
-    if (!didactics) continue;
+    const pedagogy = getBisayaLessonPedagogy(lesson.lessonNumber);
+    if (!didactics && !pedagogy) continue;
+    const normalizedDidactics = didactics || {};
 
     await lesson.update({
-      learningGoals: didactics.learningGoals || [],
-      corePatterns: didactics.corePatterns || [],
-      grammarFocus: didactics.grammarFocus || [],
-      speakingPrompts: didactics.speakingPrompts || [],
-      practicalTasks: didactics.practicalTasks || []
+      learningGoals: normalizedDidactics.learningGoals || [],
+      corePatterns: normalizedDidactics.corePatterns || [],
+      grammarFocus: normalizedDidactics.grammarFocus || [],
+      speakingPrompts: normalizedDidactics.speakingPrompts || [],
+      practicalTasks: normalizedDidactics.practicalTasks || [],
+      didacticMode: pedagogy?.didacticMode || null,
+      phaseLabel: pedagogy?.phaseLabel || null,
+      blockNumber: pedagogy?.blockNumber ?? null,
+      difficultyWeight: pedagogy?.difficultyWeight ?? null,
+      newUnitTarget: pedagogy?.newUnitTarget ?? null,
+      reviewWeight: pedagogy?.reviewWeight ?? null,
+      isIntensiveReview: Boolean(pedagogy?.isIntensiveReview)
     });
     updated++;
     console.log(`✅ Didaktik aktualisiert: Lektion ${lesson.lessonNumber} - ${lesson.title}`);