Phase 2: QNTX Shared Rust Crate - Remaining Work

⚠️ CRITICAL TODO: Delete Legacy Types Directory

types/generated/rust/ must be deleted after updating typegen.

Current state (transitional):

• typegen outputs to types/generated/rust/
• flake.nix syncs files to crates/qntx/src/types/
• Legacy directory excluded from workspace but still exists

To complete:

1. Update cmd/qntx/commands/typegen.go to output Rust types directly to crates/qntx/src/types/
2. Update typegen/rust/index.go to skip generating lib.rs, Cargo.toml, README.md when outputting to embedded location
3. Update typegen/check.go to use new path for Rust types
4. Remove sync step from flake.nix generate-types
5. Delete types/generated/rust/ directory
6. Remove from workspace exclude list

Completed (Phase 1)

• [x] Cargo workspace at project root
• [x] crates/qntx/ with types, plugin scaffolding, error handling, tracing
• [x] qntx-python-plugin and qntx-app migrated to use qntx crate
• [x] Type sync from types/generated/rust/ to crates/qntx/src/types/
• [x] qntx-inference plugin created

Phase 2 Tasks

1. Update typegen to output directly to crates/qntx/src/types/ - Remove the sync step by having typegen generate types in place, skipping lib.rs/mod.rs generation for the embedded location.

2. Migrate qntx-python-plugin to use shared proto definitions - Replace its local proto compilation with imports from qntx::plugin::proto.

3. Add qntx-python-plugin integration with qntx types - Use qntx::types::{Job, JobStatus} for job lifecycle consistency.

4. Move workspace profiles to root Cargo.toml - Consolidate release profiles from individual crates.