v0.4.0

Stable release of the 0.4 line.

API:
- New Generator API: cue.New(cfg, ...Option).Generate(Options) replaces the
  old generate variants; dependencies (drive, metadata source) are injected
  per-Generator instead of via package-level vars.
- Disc access abstracted behind the utils.Disc interface for testability.
- config.AppVersion is now a stampable var (default "dev") so builds can set
  it via -ldflags -X; library consumers keep overriding via NewConfig.

Fixes:
- gnudb: rejoin TTITLE lines wrapped across multiple lines (#9).
- musicbrainz: guard convertReleaseToDiscInfo against empty data.

Tooling:
- Makefile (deps/build/dist/test/lint/...) with git-stamped version.
- GitHub Actions: CI (build/test/lint) and a release workflow publishing the
  linux/amd64 artifact on tag push.
- log: trace request URLs and redact the hello= email param from GNUDB URLs.

v0.4.0-beta.1

First beta of the 0.4 line.

API:
- New Generator API: cue.New(cfg, ...Option).Generate(Options) replaces the
  old generate variants; dependencies (drive, metadata source) are injected
  per-Generator instead of via package-level vars.
- Disc access abstracted behind the utils.Disc interface for testability.
- config.AppVersion is now a stampable var (default "dev") so builds can set
  it via -ldflags -X; library consumers keep overriding via NewConfig.

Fixes:
- gnudb: rejoin TTITLE lines wrapped across multiple lines (#9).
- musicbrainz: guard convertReleaseToDiscInfo against empty data.

Tooling:
- Makefile (deps/build/dist/test/lint/...) with git-stamped version.
- GitHub Actions: CI (build/test/lint) and a release workflow publishing the
  linux/amd64 artifact on tag push.
- Expanded test coverage (end-to-end flow, network stubs, config, utils).
- README refreshed for Makefile, releases and library usage.

Dependencies:
- bump spf13/viper to 1.21.0 and uploadedlobster.com/discid to 0.9.0.

Merge pull request #8 from b0bbywan/configv2

configv2

add Public func to generate from any drive

Merge pull request #7 from b0bbywan/utils

Make device configurable and add GetTrackCount in utils

Merge pull request #6 from b0bbywan/config

fix config

Merge pull request #5 from b0bbywan/doc

add doc

Merge pull request #2 from b0bbywan/master

Master

Merge pull request #4 from b0bbywan/config

add config with viper

replace shell commands by C binding