feat: add workflow dispatch

Author: CasLubbers

.github/workflows/postman.yml

@@ -3,6 +3,9 @@ on:
   pull_request:
     branches:
       - main
+  push:
+    branches: [ '*' ]  # All branches for direct commits
+  workflow_dispatch:  # Manual trigger
 jobs:
   postman:
     runs-on: ubuntu-latest