v0.5.0

Added

• --commit <hash> review scope with merge-commit handling: when the requested hash has two or more parents, the diff is taken against the first parent only and a stderr warning suggests --pull-request <target>...<feature> for full branch comparison.
• --branch <target> and --pull-request <target>...<feature> review scopes — backend was already wired; this release adds the integration test coverage.
• Mutually exclusive scope flags. Passing two scope flags at once (--staged --unstaged) fails before the pipeline runs.
• lang.SourceCLIFlag — new Source enum value so --lang overrides are attributed correctly in dry-run output instead of being mislabeled SourceRepoConfig.
• Drift-guard golden test for --json output. Byte-exact fixture at internal/render/testdata/json/v1.golden; any rename, type change, or removal trips the test.

Changed

• CLI user-facing strings routed through i18n.Catalog.T(). Sixteen new keys cover the action paths (init, review, compress, setup); Turkish translations ship for every key. %w error wrappers and tabular dry-run output stay English by design.
• JSON schema v1 policy documented. Additive changes are not a version bump; renames, removals, or type changes require schema version 2 + a CHANGELOG entry. Shape unchanged from v0.4.0: {schema, content, findings, summary, meta}.

Fixed

• Windows golden-file test now passes regardless of core.autocrlf — .gitattributes pins text files to LF in the working tree.