Replace counter-arguments with possible answers and unify search inputs.

Models, AI assistant, and UI now show diskussionsfertige Antworten without titles; shared search partial fixes aria-label rendering.

Co-authored-by: Cursor <cursoragent@cursor.com>

claims/models.py

@@ -205,23 +205,22 @@ class Source(models.Model):
         return self.title
 
 
-class CounterArgument(models.Model):
+class PossibleAnswer(models.Model):
     claim = models.ForeignKey(
         Claim,
         on_delete=models.CASCADE,
-        related_name='counter_arguments',
+        related_name='possible_answers',
         verbose_name='Behauptung',
     )
-    argument = models.TextField('Gegenargument')
-    response = models.TextField('Antwort')
+    answer = models.TextField('Antwort')
 
     class Meta:
-        verbose_name = 'Gegenargument'
-        verbose_name_plural = 'Gegenargumente'
+        verbose_name = 'Mögliche Antwort'
+        verbose_name_plural = 'Mögliche Antworten'
         ordering = ['id']
 
     def __str__(self):
-        return self.argument[:80]
+        return self.answer[:80]
 
 
 def draft_upload_path(instance, filename):
@@ -286,7 +285,7 @@ class ClaimDraft(models.Model):
     detailed_explanation = models.TextField('Ausführliche Erklärung', blank=True)
     tags = models.JSONField('Schlagwörter', default=list, blank=True)
     sources = models.JSONField('Quellen', default=list, blank=True)
-    counter_arguments = models.JSONField('Gegenargumente', default=list, blank=True)
+    possible_answers = models.JSONField('Mögliche Antworten', default=list, blank=True)
     conversation = models.JSONField('Konversation', default=list, blank=True)
     ai_raw_response = models.JSONField('KI-Rohantwort', blank=True, null=True)
     error_message = models.TextField('Fehlermeldung', blank=True)