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/apply-bisaya-course-refresh.js

@@ -12,6 +12,7 @@ import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js'
 import VocabCourseProgress from '../models/community/vocab_course_progress.js';
 import VocabGrammarExerciseProgress from '../models/community/vocab_grammar_exercise_progress.js';
 import { Op } from 'sequelize';
+import { getBisayaLessonPedagogy } from './bisaya-course-phase2-pedagogy.js';
 
 const LESSON_DIDACTICS = {
   'Begrüßungen & Höflichkeit': {
@@ -171,14 +172,23 @@ async function applyBisayaCourseRefresh() {
 
     for (const lesson of lessons) {
       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)
       });
       updatedLessons++;
     }