feat: Sink url shortner for sms workflow reminders (calcom#26608)

* feat: Sink url shortner for sms workflow reminders

* fix: remove hardcoded dub values

* update .env.example

* fix: unit tests

* chore: add tests for scheduleSmsReminder and utils

* review refactor

* fix: type check

* review refactor

* fix: update test to account for smsReminderNumber fallback from main

Co-Authored-By: unknown <>

* feat: add feature flag for sink and more tests to verify

* fix: type check

* use proper feature flags for sink

* Apply suggestion from @keithwillcode

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: Keith Williams <keithwillcode@gmail.com>

Author: 3 people

.env.example

@@ -109,6 +109,15 @@ NEXT_PUBLIC_POSTHOG_HOST=
 # Dub Config
 DUB_API_KEY=
 NEXT_PUBLIC_DUB_PROGRAM_ID=
+# Optional: Domain for SMS workflow shortened links
+DUB_SMS_DOMAIN=
+# Optional: Folder ID to organize SMS workflow shortened links in Dub
+DUB_SMS_FOLDER_ID=
+
+# Sink URL Shortener Config
+SINK_API_URL=
+# API key for Sink authentication
+SINK_API_KEY=
 
 # Zendesk Config
 NEXT_PUBLIC_ZENDESK_KEY=

apps/web/modules/feature-flags/hooks/useFlags.ts

@@ -38,6 +38,7 @@ const initialData: AppFlags = {
   "active-user-billing": false,
   "sidebar-tips": false,
   "signup-watchlist-review": false,
+  "sink-shortener": false,
 };
 
 if (process.env.NEXT_PUBLIC_IS_E2E) {