feat: add --dry-run flag to all 47 CLI tools

When --dry-run is passed, each CLI prints the HTTP request it would
make (method, URL, headers, body) without actually calling fetch().
Auth credentials are masked as "***" in the output.

Useful for verifying request shape and API endpoints without needing
real API keys or making actual API calls.

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

tools/clis/partnerstack.js

@@ -12,6 +12,9 @@ if (!PUBLIC_KEY || !SECRET_KEY) {
 const AUTH = 'Basic ' + Buffer.from(`${PUBLIC_KEY}:${SECRET_KEY}`).toString('base64')
 
 async function api(method, path, body) {
+  if (args['dry-run']) {
+    return { _dry_run: true, method, url: `${BASE_URL}${path}`, headers: { Authorization: '***', 'Content-Type': 'application/json', 'Accept': 'application/json' }, body: body || undefined }
+  }
   const res = await fetch(`${BASE_URL}${path}`, {
     method,
     headers: {