feat(deploy): enhance deployment scripts with skip options for backend and frontend

- Updated `deploy-yourpart-bluegreen.sh` to pass additional arguments for skipping backend or frontend updates.
- Enhanced `update.sh` to handle `--skip-backend` and `--skip-frontend` flags, allowing for more flexible deployment based on changes detected.
- Modified deployment workflow to conditionally execute based on changes in frontend or backend files, improving deployment efficiency.

backend/scripts/create-bisaya-course-content.js

@@ -14,7 +14,7 @@ import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js'
 import VocabCourse from '../models/community/vocab_course.js';
 import User from '../models/community/user.js';
 import { BISAYA_DIDACTICS_24_43, BISAYA_RELATIONSHIP_ANCHOR_DIDACTICS } from './bisaya-course-plan-24-43.js';
-import { BISAYA_PHASE3_DIDACTICS } from './bisaya-course-phase3-extension.js';
+import { BISAYA_PHASE3_DIDACTICS, BISAYA_PHASE3_LESSONS } from './bisaya-course-phase3-extension.js';
 import { BISAYA_PHASE4_DIDACTICS } from './bisaya-course-phase4-extension.js';
 import { BISAYA_PHASE5_DIDACTICS } from './bisaya-course-phase5-extension.js';
 
@@ -33,6 +33,10 @@ const GENERATED_BISAYA_DIDACTICS = {
   ...BISAYA_PHASE5_DIDACTICS
 };
 
+const SAFE_EXERCISE_UPDATE_TITLES = new Set(
+  BISAYA_PHASE3_LESSONS.map((lesson) => lesson.title)
+);
+
 function normalizeText(value) {
   return String(value || '')
     .trim()
@@ -5338,6 +5342,7 @@ async function createBisayaCourseContent() {
   console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
 
   let totalExercisesAdded = 0;
+  let totalExercisesUpdated = 0;
   let totalLessonsProcessed = 0;
 
   for (const course of courses) {
@@ -5368,6 +5373,62 @@ async function createBisayaCourseContent() {
         where: { lessonId: lesson.id }
       });
 
+      if (existingCount > 0 && !replacePlaceholders && !forceRebuildAll && SAFE_EXERCISE_UPDATE_TITLES.has(lesson.title)) {
+        const lessonDidactics = getLessonDidactics(lesson);
+        const mergedGrammarFocus = mergeGrammarFocusForLesson(
+          lessonDidactics.grammarFocus,
+          buildGrammarCurriculumFocus(lesson)
+        );
+        const derivedCorePatterns = deriveLessonCorePatternsFromExercises(exercises);
+        const mergedCorePatterns = mergeCorePatternsForLesson(lessonDidactics, derivedCorePatterns, 8);
+        await lesson.update({
+          ...(mergedGrammarFocus.length > 0 ? { grammarFocus: mergedGrammarFocus } : {}),
+          ...(mergedCorePatterns.length >= 8 ? { corePatterns: mergedCorePatterns } : {})
+        });
+
+        const existingExercises = await VocabGrammarExercise.findAll({
+          where: { lessonId: lesson.id },
+          order: [['exerciseNumber', 'ASC']]
+        });
+
+        let exerciseNumber = 1;
+        for (const exerciseData of exercises) {
+          const { exercise } = sanitizeExerciseForConsistency(
+            lesson,
+            exerciseData,
+            lessonDidactics
+          );
+          const exerciseTypeId = await resolveExerciseTypeId(exercise);
+          const existingExercise = existingExercises[exerciseNumber - 1];
+          const payload = {
+            exerciseTypeId,
+            exerciseNumber,
+            title: exercise.title,
+            instruction: exercise.instruction,
+            questionData: JSON.stringify(exercise.questionData),
+            answerData: JSON.stringify(exercise.answerData),
+            explanation: exercise.explanation,
+            createdByUserId: course.ownerUserId || systemUser.id
+          };
+
+          if (existingExercise) {
+            await existingExercise.update(payload);
+            totalExercisesUpdated++;
+          } else {
+            await VocabGrammarExercise.create({
+              lessonId: lesson.id,
+              ...payload
+            });
+            totalExercisesAdded++;
+          }
+          exerciseNumber++;
+        }
+
+        console.log(`   🔄 Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${exercises.length} Übung(en) sicher aktualisiert`);
+        totalLessonsProcessed++;
+        continue;
+      }
+
       if (existingCount > 0 && !replacePlaceholders && !forceRebuildAll) {
         console.log(`   ⏭️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - bereits ${existingCount} Übung(en) vorhanden`);
         continue;
@@ -5440,6 +5501,7 @@ async function createBisayaCourseContent() {
   console.log(`\n🎉 Zusammenfassung:`);
   console.log(`   ${totalLessonsProcessed} Lektionen bearbeitet`);
   console.log(`   ${totalExercisesAdded} Grammatik-Übungen erstellt`);
+  console.log(`   ${totalExercisesUpdated} Grammatik-Übungen aktualisiert`);
 }
 
 createBisayaCourseContent()