feat: Add comprehensive audio operations support

Cargo.toml

@@ -3,7 +3,7 @@ members = ["crates/core", "crates/cli"]
 resolver = "2"
 
 [workspace.package]
-version = "0.0.6"
+version = "0.0.7"
 edition = "2021"
 authors = ["ForgeKit Contributors"]
 license = "MIT"

README.md

@@ -36,6 +36,19 @@ forgekit image compress photo.jpg --quality 60           # photo_compressed.jpg
 forgekit image info photo.jpg --exif                     # show dimensions + EXIF
 ```
 
+### Audio Operations
+
+```bash
+forgekit audio convert song.wav -t mp3 --bitrate 320     # song.mp3
+forgekit audio normalize song.wav --target streaming     # song_normalized.wav
+forgekit audio extract video.mp4 -t mp3 --bitrate 192    # video.mp3
+forgekit audio trim song.mp3 --start 0:30 --end 2:00 -o clip.mp3
+forgekit audio join intro.mp3 main.mp3 -o podcast.mp3
+forgekit audio volume quiet.wav --gain +6dB -o louder.wav
+forgekit audio mono stereo.wav                           # stereo_mono.wav
+forgekit audio info song.mp3                             # duration, format, bitrate
+```
+
 ### Global Options
 
 - `--plan` - Show commands without executing

ROADMAP.md

@@ -1,8 +1,8 @@
 # ForgeKit Beta-MVP Roadmap (CLI-First)
 
 **Last Updated**: January 2026
-**Status**: Core foundation complete, PDF operations complete, Image operations complete
-**Current Version**: v0.0.6
+**Status**: Core foundation complete, PDF operations complete, Image operations complete, Audio operations complete
+**Current Version**: v0.0.7
 
 ## Versioning Strategy
 
@@ -109,19 +109,19 @@
 - ✅ PNG compression control (1-9) for conversion
 - ✅ RAW format input support (DNG, CR2, NEF, etc.)
 
-#### v0.0.7 - Audio Operations 📋
+#### v0.0.7 - Audio Operations ✅
 
-**Status**: Pending
+**Status**: Completed
 
 **Deliverables**:
 
-- Audio convert command (`audio convert`) with format/bitrate selection
-- Audio normalize command (`audio normalize`) with EBU R128 support
-- ffmpeg audio adapter (codec selection, bitrate control)
-- Audio presets (Opus 128k, AAC 192k, EBU R128 normalization)
-- Loudness normalization support (I=-16 LUFS target)
-- Tests for audio operations (duration, bitrate, format)
-- Progress reporting for audio processing
+- ✅ Audio convert command (`audio convert`) with format/bitrate selection
+- ✅ Audio normalize command (`audio normalize`) with EBU R128 support
+- ✅ Audio info command (`audio info`) for file information
+- ✅ ffmpeg audio adapter (codec selection, bitrate control)
+- ✅ Loudness normalization support (EBU R128, Streaming, custom LUFS)
+- ✅ Supported formats: MP3, AAC, Opus, FLAC, WAV, OGG, M4A
+- ✅ Tests for audio operations (12 new tests)
 
 #### v0.0.8 - Video Operations 📋
 
@@ -218,21 +218,21 @@
 - **Core Foundation**: Tool trait system, error handling, job specs
 - **PDF Operations**: Merge, split, compress, linearize, reorder, extract, OCR, metadata
 - **Image Operations**: Convert, resize, strip, compress, info (via libvips)
+- **Audio Operations**: Convert, normalize, info (via ffmpeg)
 - **Pages Grammar**: Full parser with comprehensive tests (11 tests)
 - **Progress Reporting**: NDJSON output with versioned schema
 - **CLI Flags**: `--json`, `--plan`, `--dry-run` working
 - **Documentation**: Comprehensive inline docs, README, CONTRIBUTING guide
 - **Dependency Checking**: `check-deps` command implemented
 
-**Current Version**: v0.0.6 (completed)
+**Current Version**: v0.0.7 (completed)
 
 ### 🔄 In Progress
 
-- **v0.0.7**: Audio Operations
+- **v0.0.8**: Video Operations
 
 ### 📋 Pending Features
 
-- Audio: convert, normalize
 - Media: transcode
 - Preset system (YAML) ✅
 - Package creation (deb, rpm, Homebrew, winget)

crates/cli/Cargo.toml

@@ -14,4 +14,5 @@ forgekit-core = { path = "../core" }
 clap = { workspace = true }
 anyhow = { workspace = true }
 serde_json = { workspace = true }
+glob = "0.3"