Function agent_doc_apply_patch 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn agent_doc_apply_patch(
    doc: *const c_char,
    component_name: *const c_char,
    content: *const c_char,
    mode: *const c_char,
) -> FfiPatchResult

Apply a patch to a document component.

mode must be one of: "replace", "append", "prepend".

Safety

All string pointers must be valid, NUL-terminated UTF-8.