Add SEO fields to Tasks model, improve content generation response handling, and enhance progress bar animation

- Added primary_keyword, secondary_keywords, tags, and categories fields to Tasks model
- Updated generate_content function to handle full JSON response with all SEO fields
- Improved progress bar animation: smooth 1% increments every 300ms
- Enhanced step detection for content generation vs clustering vs ideas
- Fixed progress modal to show correct messages for each function type
- Added comprehensive logging to Keywords and Tasks pages for AI functions
- Fixed error handling to show meaningful error messages instead of generic failures

backend/igny8_core/modules/writer/models.py

@@ -65,6 +65,10 @@ class Tasks(SiteSectorBaseModel):
     # SEO fields
     meta_title = models.CharField(max_length=255, blank=True, null=True)
     meta_description = models.TextField(blank=True, null=True)
+    primary_keyword = models.CharField(max_length=255, blank=True, null=True)
+    secondary_keywords = models.JSONField(default=list, blank=True, help_text="List of secondary keywords")
+    tags = models.JSONField(default=list, blank=True, help_text="List of tags")
+    categories = models.JSONField(default=list, blank=True, help_text="List of categories")
     
     # WordPress integration
     assigned_post_id = models.IntegerField(null=True, blank=True)  # WordPress post ID if published