v0.1.0 – Initial pre-release

Highlights

• Simplified architecture: Removed premature Transformer abstraction. Replaced with a focused Checksum interface in the checksums/ package.
• Two checksum implementations: SplitMix64 (~0.3 ns, non-cryptographic) and SipHash (~35 ns, keyed).
• Pipeline with optional checksum verification: Stores checksum alongside the obfuscated value; verifies on restore.
• Fluent PipelineBuilder: Compose permutations, encoder, and optional checksum.
• Alphabet encoder: Supports Base10/16/32/36/58/62/64 with optimized power-of-2 paths.
• Permutations: Feistel, Affine, XOR, Rotate.
• Namespace support: XOR-based prefix per namespace.
• CI: golangci-lint and go test workflows.
• go 1.22 for wide compatibility. Zero external dependencies.

See README for full documentation.