refactor: Migrate project from Deno to pnpm/Node

Replace Deno configs and workflows with pnpm/Node tooling Add
package.json, jsr.json, build.config.ts and pnpm-lock.yaml Remove
deno.json, deno.lock, Deno build scripts and workflow Move source files
into src/ and update imports and tests to vitest Add Test CI workflow
and adapt publish jobs for pnpm/node Update editor settings, tasks,
.gitignore and bump LICENSE year

.github/workflows/deno.yml

@@ -1,41 +0,0 @@
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
-# This workflow will install Deno then run `deno lint` and `deno test`.
-# For more information see: https://github.com/denoland/setup-deno
-
-name: Deno
-
-on:
-  push:
-    branches: ["main"]
-  pull_request:
-    branches: ["main"]
-
-permissions:
-  contents: read
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Setup repo
-        uses: actions/checkout@v4
-
-      - name: Setup Deno
-        uses: denoland/setup-deno@v2
-        with:
-          deno-version: v2.x
-
-      # Uncomment this step to verify the use of 'deno fmt' on each commit.
-      - name: Verify formatting
-        run: deno fmt --check
-
-      - name: Run linter
-        run: deno lint
-
-      - name: Run tests
-        run: deno test -A

.github/workflows/publish_jsr.yml

@@ -1,7 +1,7 @@
 name: Publish on JSR
 on:
   workflow_run:
-    workflows: ["Deno"]
+    workflows: ["Test"]
     types: [completed]
     branches:
       - "main"

.github/workflows/publish_npm.yml

@@ -9,18 +9,18 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@v4
-      - name: Setup Deno
-        uses: denoland/setup-deno@v2
+      - uses: pnpm/action-setup@v4
         with:
-          deno-version: v2.x
+          run_install: false
       # Setup .npmrc file to publish to npm
       - uses: actions/setup-node@v4
         with:
-          node-version: "22.x"
+          node-version: "24.x"
+          cache: "pnpm"
           registry-url: "https://registry.npmjs.org"
-      - run: deno run -A scripts/build_npm.ts
-      - run: cd npm && npm ci
-      - run: cd npm && npm publish --provenance --access public
+      - run: pnpm install
+      - run: pnpm build
+      - run: pnpm test
+      - run: pnpm publish --provenance --access public
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: Test
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Setup repo
+        uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          run_install: false
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "24.x"
+          cache: "pnpm"
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Run tests
+        run: pnpm test