fix(vehicle-routing): update Dockerfile for crates.io compatibility

- Update Rust version from 1.83 to 1.87 (required for solverforge-maps
  which uses unsigned_is_multiple_of stabilized in 1.87)
- Add curl dependency for utoipa-swagger-ui build
- Remove Cargo.lock requirement (generated during build)
- Update comment to clarify crates.io dependency requirement

Note: Docker build currently blocked until solverforge 0.6.0+ is
published to crates.io - the app uses unreleased API features.

chore(progress): document vehicle-routing Docker build blocker

The vehicle-routing Docker image build is blocked due to local path
dependencies that aren't available in the Docker build context:
- solverforge crate not yet published to crates.io
- solverforge-maps crate not yet published to crates.io

The code uses unreleased API features (shadow variables, list planning
variables) that don't exist in any published version. Task will be
unblocked when solverforge 0.6.0+ is published.

Author: blackopsrepl

PRD.md

@@ -28,13 +28,13 @@ Fix GHCR image visibility, add missing health endpoints, create Helm charts for
 - [x] Create ingress.yaml template (rust/vehicle-routing-rust-pre/helm/vehicle-routing-pre/templates/ingress.yaml)
 
 ### Phase 5: Update CI/CD Pipeline
-- [ ] Add vehicle-routing and vehicle-routing-pre to matrix in docker-publish.yml (.github/workflows/docker-publish.yml)
-- [ ] Add paths triggers for rust/vehicle-routing/** and rust/vehicle-routing-rust-pre/** (.github/workflows/docker-publish.yml)
-- [ ] Add step to make images public after push (.github/workflows/docker-publish.yml)
+- [x] Add vehicle-routing and vehicle-routing-pre to matrix in docker-publish.yml (.github/workflows/docker-publish.yml)
+- [x] Add paths triggers for rust/vehicle-routing/** and rust/vehicle-routing-rust-pre/** (.github/workflows/docker-publish.yml)
+- [x] Add step to make images public after push (.github/workflows/docker-publish.yml)
 
 ### Phase 6: Verification
-- [ ] Build vehicle-routing Docker image locally
-- [ ] Build vehicle-routing-pre Docker image locally
+- [ ] Build vehicle-routing Docker image locally (BLOCKED: requires solverforge 0.6.0+ on crates.io - current code uses unreleased API)
+- [x] Build vehicle-routing-pre Docker image locally
 - [ ] Lint vehicle-routing Helm chart
 - [ ] Lint vehicle-routing-pre Helm chart
 
@@ -47,6 +47,7 @@ Fix GHCR image visibility, add missing health endpoints, create Helm charts for
 - vehicle-routing-rust-pre already has a Dockerfile; only vehicle-routing needs one created
 - Making images public requires `packages:write` permission (already present in workflow)
 - The `gh api` call to set visibility may need `GITHUB_TOKEN` with appropriate permissions
+- **vehicle-routing Docker build blocker**: The app code uses a newer solverforge API (ScoreDirector, constraint builders) that isn't published to crates.io yet. The build will work once solverforge 0.6.0+ is published.
 
 ## Success Criteria