chore(dev): relax rate limits for local testing

Add config/packages/dev/rate_limiter.yaml raising send_code and login
limits to 1000 in the dev environment only, so repeated OTP testing
isn't blocked by 'درخواست‌های زیاد'. Production limits in
config/packages/rate_limiter.yaml (5/hour, 10/min) are untouched.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

config/packages/dev/rate_limiter.yaml

@@ -0,0 +1,13 @@
+# Dev-only overrides: relaxed limits so local testing isn't blocked.
+# Production limits live in config/packages/rate_limiter.yaml.
+framework:
+    rate_limiter:
+        send_code:
+            policy: 'sliding_window'
+            limit: 1000
+            interval: '60 minutes'
+
+        login:
+            policy: 'fixed_window'
+            limit: 1000
+            interval: '1 minute'