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/migrations/0004_add_content_seo_fields.py

@@ -0,0 +1,35 @@
+# Generated migration for adding SEO fields to Tasks model
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('writer', '0003_alter_content_options_alter_images_options_and_more'),
+        ('igny8_core_auth', '0008_passwordresettoken_alter_industry_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='tasks',
+            name='primary_keyword',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+        migrations.AddField(
+            model_name='tasks',
+            name='secondary_keywords',
+            field=models.JSONField(blank=True, default=list, help_text='List of secondary keywords'),
+        ),
+        migrations.AddField(
+            model_name='tasks',
+            name='tags',
+            field=models.JSONField(blank=True, default=list, help_text='List of tags'),
+        ),
+        migrations.AddField(
+            model_name='tasks',
+            name='categories',
+            field=models.JSONField(blank=True, default=list, help_text='List of categories'),
+        ),
+    ]
+