Returns the document's structural map — headings with hierarchy, named
ranges with boundaries, tables with dimensions, inline objects, and
section boundaries. Without this, you're editing blind: you don't know
what headings exist, where sections start, or what named ranges are
available for targeting.

**Call this before edit_document.** The structural map shows what
addresses are available (heading names, named range names) so your edit
operations target the right locations.

Args:
    document_id: The Google Docs document ID (from the URL).

You cannot safely modify a Google Doc by constructing batchUpdate
requests yourself. The API uses UTF-16 code units with cascading index
shifts — insert 10 characters at position 50, and every subsequent
index in your batch is wrong. A single miscalculation silently corrupts
the document with no error message. This tool compiles your semantic
intent into a correct request sequence.

**Recommended flow:** call read_document first, then describe your
changes using heading names or named ranges as addresses.

Valid operation types: insert_text, delete_content, replace_all_text,
replace_section, update_text_style, update_paragraph_style,
create_paragraph_bullets, convert_to_list, insert_table,
insert_table_row, insert_table_column, delete_table_row,
delete_table_column, insert_bullet_list, insert_numbered_list,
insert_page_break, insert_inline_image, create_header, create_footer,
create_footnote, create_named_range, delete_named_range,
replace_named_range_content.

Args:
    document_id: The Google Docs document ID.
    operations: List of operation dicts. Each has:
        - type: one of the operation types listed above
        - address: target location ({"heading": "Budget"}, {"start": true}, etc.)
        - params: operation-specific parameters

Returns the compiled batchUpdate requests plus validation status. Use
this when you want to inspect the exact API calls before they execute,
or when debugging why an edit might fail. Catches address resolution
errors, ambiguous headings, out-of-bounds indices, and invalid
operation parameters.

**Use this before edit_document when uncertain.** Shows exactly what
Arezzo would send to the Google Docs API.

Args:
    document_id: The Google Docs document ID.
    operations: List of operation dicts (same format as edit_document).