v0.1.18

Added

• Lock file parsers: Cargo.lock (Rust), go.sum (Go), poetry.lock (Python Poetry) — each dependency becomes a Dependency concept alongside the existing manifest formats.
• okf generate --exclude <dir> — skip directories per-run without editing SKIP_DIRS. Repeatable: --exclude tests --exclude docs.
• okf diff <old> <new> CLI subcommand — compares two bundles via content hash, prints added/removed/changed concepts. Supports --compact and --json.

Fixed

• go.sum parser: skips /go.mod checksum lines and deduplicates module+version pairs.

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