feat: Enhance notification service configuration and refactor related components

- Updated notification service models to use pointers for boolean fields, allowing for better handling of enabled states.
- Introduced helper methods for getting and setting enabled states in notification and auth provider models.
- Refactored notification form templates to consolidate event trigger handling, improving code maintainability.
- Added SSL verification configuration to the application settings, allowing users to skip SSL verification for outgoing notifications.
- Enhanced the notification sending logic to respect the SSL verification setting.
- Introduced new migration to alter boolean defaults in the database schema for better compatibility with the updated models.
- Added unit tests for email and Rclone service functionalities to ensure reliability.

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/joho/godotenv v1.5.1
 	github.com/pquerna/otp v1.4.0
 	github.com/robfig/cron/v3 v3.0.1
+	github.com/stretchr/testify v1.10.0
 	golang.org/x/crypto v0.36.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gorm.io/gorm v1.25.12
@@ -22,6 +23,7 @@ require (
 	github.com/bytedance/sonic v1.12.9 // indirect
 	github.com/bytedance/sonic/loader v0.2.3 // indirect
 	github.com/cloudwego/base64x v0.1.5 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.8 // indirect
 	github.com/gin-contrib/sse v1.0.0 // indirect
@@ -43,6 +45,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect