- Configure workspace with pdftract-core, pdftract-cli, pdftract-py members
- Add workspace.package metadata: version, edition, rust-version (1.78), license (MIT OR Apache-2.0)
- Add workspace.dependencies for shared external deps (anyhow, flate2, lzw, memchr, secrecy, serde, thiserror, tracing)
- Create .cargo/config.toml with CI and development build aliases
- All member crates reference workspace metadata via workspace = true
- pdftract-py configured as cdylib with pyo3 extension-module feature
Acceptance criteria:
- PASS: 3 workspace members listed by cargo metadata
- PASS: All crates use workspace metadata references
- WARN: cargo build fails due to code compilation errors (separate concern)
Refs: pdftract-279, plan lines 3343-3367
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>