Add Phase 9: NEEDLE integration — install.sh, claude-print.yaml, --check subcommand
- claude-print.yaml: NEEDLE agent config with stdin input_method, needle-transform-claude
output_transform, and invoke_template for subscription-billed claude-print runs
- install.sh: download release binary from GitHub, backup existing, install mock_claude,
install NEEDLE config if present, run --check to verify, print --version
- src/check.rs: --check doctor subcommand with openpty probe, mkfifo probe, and optional
mock_claude PTY round-trip (skipped if mock_claude not in PATH)
- src/main.rs + src/lib.rs: wire up check::run() for --check flag
- README.md: add Install, Usage, Flags table (matches --help exactly), Exit codes,
and NEEDLE integration sections
- test-fixtures/mock-claude: extend with all MOCK_* env var controls needed for
integration tests (MOCK_SILENT, MOCK_EXIT_BEFORE_STOP, MOCK_TRUST_DIALOG, etc.)
- tests/cli.rs, tests/hooks.rs, tests/version_compat.rs: Phase 10 unit test stubs
claude-print --check passes: openpty PASS, mkfifo PASS, mock_claude PTY PASS
bash -n install.sh: syntax OK
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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