fix: remove unused code

* Update version to 2025.0.3, and remove unused code
* Upgrade chai to 5.3.1
* Streamline HTTP request method usage

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@techniker-me/pcast-api",
-  "version": "2025.0.2",
+  "version": "2025.0.3",
   "module": "src/index.ts",
   "type": "module",
   "scripts": {
@@ -13,18 +13,15 @@
     "build:node": "bun build src/index.ts --outdir dist/node --target node --format esm --minify --production",
     "build:browser": "bun build src/index.ts --outdir dist/browser --target browser --format esm --minify --production",
     "build:types": "tsc --outDir dist/types",
-    "prepublishOnly": "bun run build",
     "clean": "rm -rf dist"
   },
   "devDependencies": {
     "@types/bun": "latest",
-    "chai": "5.2.1",
+    "chai": "5.3.1",
     "chai-as-promised": "8.0.1",
     "mocha": "11.7.1",
-    "prettier": "3.6.2"
-  },
-  "peerDependencies": {
-    "typescript": "^5"
+    "prettier": "3.6.2",
+    "typescript": "5.9.2"
   },
   "exports": {
     ".": {