blurpritn adn site builde cleanup

backend/igny8_core/business/planning/models.py

@@ -191,14 +191,7 @@ class ContentIdeas(SiteSectorBaseModel):
         related_name='ideas',
         limit_choices_to={'sector': models.F('sector')}
     )
-    taxonomy = models.ForeignKey(
-        'site_building.SiteBlueprintTaxonomy',
-        on_delete=models.SET_NULL,
-        null=True,
-        blank=True,
-        related_name='content_ideas',
-        help_text="Optional taxonomy association when derived from blueprint planning"
-    )
+    # REMOVED: taxonomy FK to SiteBlueprintTaxonomy (legacy blueprint functionality)
     status = models.CharField(max_length=50, choices=STATUS_CHOICES, default='new')
     estimated_word_count = models.IntegerField(default=1000)
     content_type = models.CharField(