fix: include school_id in bootstrap profile select query

The _get_profile select list omitted school_id, causing
/me/bootstrap to always return null for that field even after
the column was populated.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

modules/database/services/bootstrap_service.py

@@ -160,7 +160,7 @@ class BootstrapService:
         try:
             result = (
                 self.supabase.table("profiles")
-                .select("id,email,user_type,username,full_name,display_name,user_db_name,school_db_name")
+                .select("id,email,user_type,username,full_name,display_name,user_db_name,school_db_name,school_id")
                 .eq("id", user_id)
                 .single()
                 .execute()