Refactor keyword handling: Replace 'intent' with 'country' across backend and frontend

- Updated AutomationService to include estimated_word_count.
- Increased stage_1_batch_size from 20 to 50 in AutomationViewSet.
- Changed Keywords model to replace 'intent' property with 'country'.
- Adjusted ClusteringService to allow a maximum of 50 keywords for clustering.
- Modified admin and management commands to remove 'intent' and use 'country' instead.
- Updated serializers to reflect the change from 'intent' to 'country'.
- Adjusted views and filters to use 'country' instead of 'intent'.
- Updated frontend forms, filters, and pages to replace 'intent' with 'country'.
- Added migration to remove 'intent' field and add 'country' field to SeedKeyword model.

backend/igny8_core/auth/models.py

@@ -517,11 +517,14 @@ class SeedKeyword(models.Model):
     These are canonical keywords that can be imported into account-specific Keywords.
     Non-deletable global reference data.
     """
-    INTENT_CHOICES = [
-        ('informational', 'Informational'),
-        ('navigational', 'Navigational'),
-        ('commercial', 'Commercial'),
-        ('transactional', 'Transactional'),
+    COUNTRY_CHOICES = [
+        ('US', 'United States'),
+        ('CA', 'Canada'),
+        ('GB', 'United Kingdom'),
+        ('AE', 'United Arab Emirates'),
+        ('AU', 'Australia'),
+        ('IN', 'India'),
+        ('PK', 'Pakistan'),
     ]
     
     keyword = models.CharField(max_length=255, db_index=True)
@@ -533,7 +536,7 @@ class SeedKeyword(models.Model):
         validators=[MinValueValidator(0), MaxValueValidator(100)],
         help_text='Keyword difficulty (0-100)'
     )
-    intent = models.CharField(max_length=50, choices=INTENT_CHOICES, default='informational')
+    country = models.CharField(max_length=2, choices=COUNTRY_CHOICES, default='US', help_text='Target country for this keyword')
     is_active = models.BooleanField(default=True, db_index=True)
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
@@ -547,7 +550,7 @@ class SeedKeyword(models.Model):
             models.Index(fields=['keyword']),
             models.Index(fields=['industry', 'sector']),
             models.Index(fields=['industry', 'sector', 'is_active']),
-            models.Index(fields=['intent']),
+            models.Index(fields=['country']),
         ]
         ordering = ['keyword']