feat(cli): add ledger --version - #117
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The CLI had no top-level version flag: `COMMAND` is a required positional argument, so `ledger --version` (or running with no subcommand) just failed with "the following arguments are required: COMMAND". There was no way to ask an installed `ledger` what version it was short of opening pyproject.toml or `pip show`. Add a standard argparse `--version` action that prints `ledger <version>` and exits 0, sourced from `ledger.__version__` — the same installed-package- metadata value every other version-truth path already uses (REL-02), so it cannot drift from pyproject.toml. Verification (offline gates, all green): make lint type test i18n claims hygiene workflow-lint (1021 passed, including the new test). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RwvFhZbxJZZn4bpejFu3Vj
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Summary
ledgerhad no top-level version flag.COMMANDis a required positional, soledger --version(or bareledger) just failed with "the following arguments are required: COMMAND" — no way to ask an installedledgerwhat version it was without openingpyproject.tomlorpip show ledger-archive.--versionaction: printsledger <version>and exits 0.ledger.__version__, the same installed-package-metadata value every other version-truth path already uses (RELEASE-AND-VERSIONING-STANDARD REL-02) — so this can't drift frompyproject.toml.Test plan
uv run ledger --versionprintsledger 0.1.0.dev0and exits 0test_version_flag_prints_version_and_exits_zerointests/test_cli.pymake lint type test i18n claims hygiene workflow-lint— all green, 1021 passed (was 1020)ruff format --checkclean🤖 Generated with Claude Code
https://claude.ai/code/session_01RwvFhZbxJZZn4bpejFu3Vj