refactor: decouple core from PyO3, introduce ryx-rs native API, and expand type system

.github/workflows/ci.yml

@@ -92,7 +92,7 @@ jobs:
         run: uv run maturin develop --release
 
       - name: Run pytest
-        run: uv run pytest tests/ -v --tb=short
+        run: uv run pytest ryx-python/tests/ -v --tb=short
 
       - name: Run examples smoke test
         run: |

.github/workflows/release.yml

@@ -168,3 +168,35 @@ jobs:
         with:
           packages-dir: dist/
           skip-existing: true
+
+  #  Publish Rust crates to crates.io
+  publish-cratesio:
+    name: Publish to crates.io
+    runs-on: ubuntu-latest
+    needs: [build-wheels, build-sdist]
+    if: startsWith(github.ref, 'refs/tags/v')
+    environment:
+      name: cratesio
+      url: https://crates.io/crates/ryx-rs
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache Rust dependencies
+        uses: Swatinem/rust-cache@v2
+
+      - name: Publish crates to crates.io
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: |
+          for crate in ryx-macro ryx-query ryx-common ryx-backend ryx-rs; do
+            echo "::group::Publishing $crate"
+            FEATURES=""
+            [ "$crate" = "ryx-backend" ] && FEATURES="--no-default-features"
+            cargo publish -p "$crate" $FEATURES 2>&1 || echo "::warning:: $crate publish exited $? — likely already published or version mismatch"
+            echo "::endgroup::"
+          done