update ai insight migration for all page

backend/apps/operations/models.py

@@ -27,22 +27,47 @@ class IotPanel(models.Model):
 
 
 class AIInsight(models.Model):
+    SOURCE_GENERATED = "generated"
+    SOURCE_CACHE = "cache"
+    SOURCE_LOCAL_FALLBACK = "local_fallback"
+    SOURCE_CHOICES = [
+        (SOURCE_GENERATED, "Generated"),
+        (SOURCE_CACHE, "Cache"),
+        (SOURCE_LOCAL_FALLBACK, "Local fallback"),
+    ]
+
     date = models.DateField()
     insight_text = models.TextField()
-    alert = models.CharField(max_length=100)
-    section = models.CharField(max_length=100)
-    session = models.CharField(max_length=100)
+    alert = models.CharField(max_length=100, blank=True, default="")
     cycle = models.ForeignKey(Cycle, on_delete=models.CASCADE, related_name="ai_insights")
+    kandang = models.ForeignKey(
+        "farms.Kandang",
+        on_delete=models.CASCADE,
+        related_name="ai_insights",
+        null=True,
+        blank=True,
+    )
+    topic = models.CharField(max_length=64, blank=True, default="", db_index=True)
+    report_type = models.CharField(max_length=32, blank=True, default="page", db_index=True)
+    report_period = models.CharField(max_length=64, blank=True, default="current", db_index=True)
+    source = models.CharField(
+        max_length=32,
+        choices=SOURCE_CHOICES,
+        default=SOURCE_GENERATED,
+        blank=True,
+    )
+    summary = models.TextField(blank=True, default="")
+    citations = models.TextField(blank=True, default="[]")
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
 
     class Meta:
         db_table = "ai_insight"
-        ordering = ["-date"]
+        ordering = ["-date", "-created_at"]
         constraints = [
             models.UniqueConstraint(
-                fields=["cycle", "date", "section", "session"],
-                name="uniq_ai_insight_cycle_date_section_session",
+                fields=["cycle", "kandang", "topic", "report_type", "report_period"],
+                name="uniq_ai_insight_cache_scope",
             )
         ]