Function removeTomlTable

src/installer/targets/toml.ts:109–122

(
  fileContent: string,
  header: string,
)

 * possibly-empty new content + an action flag.
 */
export function removeTomlTable(
  fileContent: string,
  header: string,
): { content: string; action: 'removed' | 'not-found' } {
  const headerLine = `[${header}]`;
  const headerIdx = findHeaderIndex(fileContent, headerLine);
  if (headerIdx === -1) return { content: fileContent, action: 'not-found' };

  const blockEnd = findNextTableHeader(fileContent, headerIdx + headerLine.length);
  const before = fileContent.substring(0, headerIdx).replace(/\n+$/, '');
  const after = fileContent.substring(blockEnd).replace(/^\n+/, '');
  const joined = before + (before && after ? '\n\n' : '') + after;
  return { content: joined, action: 'removed' };
}

/**
 * Locate the byte index of a header line (`[foo.bar]`) when it