Update V3 CRUD router and object definitions.

- Added 'external_person_id' to Post searchable fields.
- Updated api_crud_v3.py to respect 'fields_to_exclude_from_db' model attribute.
- Cleaned up old verification scripts (moved to tests/).

app/routers/api_crud_v3.py

@@ -432,6 +432,12 @@ async def post_obj(
     for k in keys_to_remove:
         del data_to_insert[k]
 
+    # Filter out model-specific excluded fields (e.g., view-only fields like person_full_name in Journal)
+    if hasattr(input_model, 'fields_to_exclude_from_db'):
+        for k in input_model.fields_to_exclude_from_db:
+             if k in data_to_insert:
+                 del data_to_insert[k]
+
     if sql_insert_result := sql_insert(data=data_to_insert, table_name=table_name_insert):
         new_obj_id = sql_insert_result
         new_obj_id_random = get_id_random(record_id=new_obj_id, table_name=obj_name)
@@ -489,6 +495,12 @@ async def patch_obj(
     for k in keys_to_remove:
         del obj_data[k]
 
+    # Filter out model-specific excluded fields (e.g., view-only fields like person_full_name in Journal)
+    if hasattr(input_model, 'fields_to_exclude_from_db'):
+        for k in input_model.fields_to_exclude_from_db:
+             if k in obj_data:
+                 del obj_data[k]
+
     if sql_update(data=obj_data, table_name=table_name_update, record_id=record_id):
         if return_obj:
             if sql_select_result := sql_select(table_name=table_name_select, record_id=record_id):