Update CI for the 1.0 workspace layout

- rust.yml: modernize (checkout@v4), build/test the whole workspace, add a
  wasm32 core build check and a Node package build+test job. Checks out
  visioncortex next to the repo so the local path dependency resolves.
- python.yml: build crates/vtracer-py (was the deleted cmdapp/); note that
  manylinux builds need visioncortex 0.9.0 published to crates.io.
- release.yml: note the same visioncortex prerequisite for the CLI binary.

.github/workflows/rust.yml

@@ -12,7 +12,6 @@ on:
     branches:
       - master
       - 0.*.x
-      - pr/**/ci
       - ci-*
 
 concurrency:
@@ -22,14 +21,62 @@ concurrency:
 env:
   CARGO_TERM_COLOR: always
 
+# NOTE: the workspace depends on visioncortex 0.9.0 via a local path
+# (`../visioncortex`). Until 0.9.0 is published to crates.io, CI checks out the
+# visioncortex repo next to this one so the path resolves. This requires the
+# 0.9.x changes to be present on visioncortex's default branch.
 jobs:
-  build:
-
+  test:
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v2
-    - name: Build
-      run: cargo build --verbose
-    - name: Run tests
-      run: cargo test --verbose
+      - uses: actions/checkout@v4
+        with:
+          path: vtracer
+      - uses: actions/checkout@v4
+        with:
+          repository: visioncortex/visioncortex
+          path: visioncortex
+      - name: Build
+        working-directory: vtracer
+        run: cargo build --workspace --verbose
+      - name: Test
+        working-directory: vtracer
+        run: cargo test --workspace --verbose
+
+  wasm:
+    name: wasm-safety (core)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: vtracer
+      - uses: actions/checkout@v4
+        with:
+          repository: visioncortex/visioncortex
+          path: visioncortex
+      - run: rustup target add wasm32-unknown-unknown
+      - name: Build core for wasm32
+        working-directory: vtracer
+        run: cargo build --target wasm32-unknown-unknown -p vtracer
+
+  nodejs:
+    name: Node package
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: vtracer
+      - uses: actions/checkout@v4
+        with:
+          repository: visioncortex/visioncortex
+          path: visioncortex
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+      - name: Build & test
+        working-directory: vtracer/nodejs
+        run: |
+          wasm-pack build --target nodejs --out-dir pkg
+          node test.js