v0.1.0

First tagged release.

Added

• apply, remove, status and diff subcommands for adding a named set of
  blocks to a tailnet policy file and removing exactly those blocks again.
• Removal that reproduces the original policy file byte for byte, including
  comment placement and trailing-comma style.
• --dry-run, --yes, --force and --skip-conflicts on the write paths.
• --json output for status and diff, with human-readable output on
  stderr so that stdout carries one document and nothing else.
• Structural matching for removing a bundle that was applied under a different
  name, via remove <bundle.hujson> --match-structural.
• Credentials from TS_API_KEY and TS_TAILNET, resolved from the command
  line, then the environment, then a config file under $XDG_CONFIG_HOME.
• A safety ladder on every write: conditional read, self-check,
  server-side validation, diff, local backup, confirmation, conditional write.
• version subcommand.