[miladev95]

Summary

Adds a new --retry <count> CLI flag that lets users override the per-notification retry count when sending via the command line.

The REST API already supports a per-request retry field (PushNotification.Retry), which is honored by all three platforms (APNS, FCM, HMS) and capped by the configured max_retry. This change brings the same capability to CLI mode, which previously could only use the global max_retry config value.

Changes

• app/options.go — add Retry field to Options, bind --retry flag, pass through CLISendOptions()
• app/sender.go — set req.Retry in SendAndroidNotification, SendHuaweiNotification, and SendIOSNotification when --retry is > 0
• main.go — document --retry in usage text
• app/options_test.go, app/sender_test.go — tests for the new option and its default value

Usage

gorush --android --token TOKEN --message hi --retry 3

Notes

• --retry 0 (default) is ignored, preserving existing behavior
• Negative values are ignored, matching the REST API's handling of retry
• No config schema changes required

Testing

• go test -v -tags sqlite ./app/... — all tests pass
• go build -tags sqlite . — builds successfully
• golangci-lint run ./app/... — 0 issues