recognition: Recognition model w. grant_if_new; sky_save returns stargazer on first chart save — TDD

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/apps/drama/models.py

@@ -168,3 +168,28 @@ class ScrollPosition(models.Model):
 def record(room, verb, actor=None, **data):
     """Record a game event in the drama log."""
     return GameEvent.objects.create(room=room, actor=actor, verb=verb, data=data)
+
+
+class Recognition(models.Model):
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL, on_delete=models.CASCADE,
+        related_name="recognitions",
+    )
+    slug = models.SlugField(max_length=60)
+    earned_at = models.DateTimeField()
+    palette = models.CharField(max_length=60, null=True, blank=True)
+
+    class Meta:
+        unique_together = [("user", "slug")]
+        ordering = ["earned_at"]
+
+    def __str__(self):
+        return f"{self.user.email} — {self.slug}"
+
+    @classmethod
+    def grant_if_new(cls, user, slug):
+        from django.utils import timezone
+        return cls.objects.get_or_create(
+            user=user, slug=slug,
+            defaults={"earned_at": timezone.now()},
+        )