create tabular orchestration file.

[paullizer]

move tabular processing in the chat to its own python file

[application/single_app/route_backend_chats.py]
f"{missing_sheet_feedback}"
f"FILE SCHEMAS:\n"
f"{schema_context}\n\n"
"AVAILABLE FUNCTIONS: lookup_value, aggregate_column, filter_rows, query_tabular_data, "

Move this to a markdown and parse it in and move the functions to another file or the plugin, and call that method.