chore(deps): replace rimraf with rm -rf, remove devDep

Native rm -rf is equivalent for the clean script on macOS/Linux.
Eliminates rimraf -> glob -> minimatch vulnerability chain.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg

package-lock.json

@@ -42,7 +42,7 @@
     "test": "vitest run",
     "test:watch": "vitest",
     "test:coverage": "vitest run --coverage",
-    "clean": "rimraf dist",
+    "clean": "rm -rf dist",
     "prepare": "npm run build",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
@@ -97,7 +97,7 @@
     "eslint": "^10.0.0",
     "express": "^4.18.2",
     "ignore-loader": "^0.1.2",
-    "rimraf": "^5.0.10",
+
     "ts-loader": "^9.5.4",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",