add npm publish workflow (v* tags): publishes pi + omp packages via NPM_TOKEN

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "pygienium",
+  "name": "@mikefreno/pygienium",
   "version": "0.1.0",
   "description": "Code hygiene extension for pi — isolated sub-agent checks that scan a target, apply fixes, and emit a findings+changes report.",
   "keywords": [
@@ -51,5 +51,11 @@
   "scripts": {
     "typecheck": "tsc --noEmit",
     "test": "bun test"
-  }
+  },
+  "files": [
+    "src/",
+    "agents/",
+    "README.md",
+    "LICENSE"
+  ]
 }