feat(scouting): add wingspan filters and saved searches mvp

app/scouting/models.py

@@ -207,3 +207,24 @@ class PlayerNote(models.Model):
 
     def __str__(self) -> str:
         return f"Note by {self.user} for {self.player.full_name}"
+
+
+class SavedSearch(models.Model):
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name="saved_searches",
+    )
+    name = models.CharField(max_length=120)
+    params = models.JSONField(default=dict)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        ordering = ["name", "-updated_at", "-id"]
+        constraints = [
+            models.UniqueConstraint(fields=["user", "name"], name="uniq_saved_search_name_per_user"),
+        ]
+
+    def __str__(self) -> str:
+        return f"{self.user} - {self.name}"