Fix operations

Every fix: block uses one of these ops. See ARCHITECTURE.md for the full cross-reference of which op pairs with which rule kind.

Path-only (ignore fix_size_limit):

• file_create: {content, path?, create_parents?}
• file_remove: {}
• file_rename: {} (target derived from rule config)

Content-editing (skipped on files over fix_size_limit; default 1 MiB, null disables the cap):

• file_prepend: {content}
• file_append: {content}
• file_trim_trailing_whitespace: {}
• file_append_final_newline: {}
• file_normalize_line_endings: {} (target read from parent rule)
• file_strip_bidi: {}
• file_strip_zero_width: {}
• file_strip_bom: {}
• file_collapse_blank_lines: {} (max read from parent rule)

fix_size_limit is a top-level config field:

version: 1
fix_size_limit: 1048576   # 1 MiB — the default; `null` disables
rules:
  - ...

Over-limit files report Skipped with a stderr warning rather than applying the fix.

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