feat(VocabLessonView): improve lesson reset behavior and normalize vocabulary handling

- Updated lesson reset functionality to ensure users start in the 'learn' tab after resetting progress.
- Enhanced vocabulary normalization by adding a method to strip trailing parenthetical notes, improving text consistency.
- Adjusted normalization logic to conditionally ignore trailing notes based on user input mode, enhancing user experience during vocabulary training.

frontend/src/views/social/VocabLessonView.vue

@@ -1773,6 +1773,13 @@ export default {
       try {
         await apiClient.delete(`/api/vocab/lessons/${this.lessonId}/progress`);
         this.clearLocalLessonStateCache();
+        // Nach dem Reset soll der Nutzer wieder im Üben-/Lernen-Tab starten.
+        this.activeTab = 'learn';
+        if (this.$route?.query?.tab && this.$route.query.tab !== 'learn') {
+          this.$router.replace({
+            query: { ...this.$route.query, tab: 'learn' }
+          });
+        }
         this.$root?.$refs?.messageDialog?.open?.('tr:socialnetwork.vocab.courses.resetLessonProgressSuccess');
         await this.loadLesson();
       } catch (e) {
@@ -1913,6 +1920,9 @@ export default {
         : localFallbackState;
 
       if (!parsedState || parsedState.version !== LESSON_STATE_VERSION) {
+        // Ohne gespeicherten Zustand soll eine Lektion immer im Üben-/Lernen-Flow starten,
+        // sonst bleibt z.B. der Kapitel-Prüfungs-Tab "kleben" (u.a. nach Reset).
+        this.activeTab = 'learn';
         this.lessonStatePersistenceReady = true;
         return;
       }
@@ -3599,8 +3609,22 @@ export default {
         .trim();
       return normalized.replace(/\s+/g, '');
     },
-    normalizeVocab(s) {
-      return this.normalizeComparableText(s);
+    stripTrailingParentheticalNotes(value) {
+      let text = String(value || '').trim();
+      // Entfernt didaktische Zusätze am Ende, unabhängig vom konkreten Inhalt,
+      // z. B. "(...)", "[...]" oder vollbreite Klammern "（...）".
+      const trailingNoteRegex = /\s*(\([^()]*\)|\[[^\[\]]*\]|（[^（）]*）)\s*$/;
+      while (trailingNoteRegex.test(text)) {
+        text = text.replace(trailingNoteRegex, '').trim();
+      }
+      return text;
+    },
+    normalizeVocab(s, options = {}) {
+      const { ignoreTrailingParentheticalNotes = false } = options;
+      const source = ignoreTrailingParentheticalNotes
+        ? this.stripTrailingParentheticalNotes(s)
+        : s;
+      return this.normalizeComparableText(source);
     },
     reportSrsReviewForCurrentQuestion(isCorrect) {
       if (!this.currentVocabQuestion?.vocab || !this.courseId) {
@@ -3631,9 +3655,14 @@ export default {
         userAnswer = this.vocabTrainerAnswer;
       }
       
-      const normalizedUser = this.normalizeVocab(userAnswer);
+      const useTypingNormalization = this.vocabTrainerMode === 'typing';
+      const normalizedUser = this.normalizeVocab(userAnswer, {
+        ignoreTrailingParentheticalNotes: useTypingNormalization
+      });
       const normalizedCorrectAnswers = (this.currentVocabQuestion.answers || [this.currentVocabQuestion.answer])
-        .map(answer => this.normalizeVocab(answer));
+        .map(answer => this.normalizeVocab(answer, {
+          ignoreTrailingParentheticalNotes: useTypingNormalization
+        }));
       this.vocabTrainerLastCorrect = normalizedCorrectAnswers.includes(normalizedUser);
       
       // Update Stats