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/publish_jsr.yml

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