Initial commit: dating app backend (Go/Gin/GORM/Postgres)

Phone+OTP auth, staged onboarding, admin approval workflow, and a
full discovery/swipe/match/chat system with photo upload and
approximate distance (haversine) based on user location.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,19 @@
+# binaries
+/dating-app
+/dating-app-server
+*.exe
+*.test
+*.out
+
+# env
+.env
+
+# فایل‌های آپلودشده‌ی کاربران (نباید توی گیت باشن)
+/uploads/
+
+# IDE
+.idea/
+.vscode/
+
+# OS
+.DS_Store