feat: Implement Two-Factor Authentication (2FA) functionality

- Added support for Two-Factor Authentication, including setup, verification, and disabling features.
- Introduced new components for 2FA setup and verification, enhancing user security.
- Updated user model to include fields for 2FA secret, status, and backup codes.
- Created migration to add necessary database fields for 2FA.
- Enhanced authentication handlers to manage 2FA processes during login and profile updates.
- Updated routes to include 2FA-related endpoints for setup and verification.

go.mod

@@ -4,11 +4,13 @@ go 1.24.0
 
 require (
 	github.com/a-h/templ v0.3.833
+	github.com/gin-contrib/sessions v1.0.2
 	github.com/gin-gonic/gin v1.10.0
 	github.com/glebarez/sqlite v1.11.0
 	github.com/go-gormigrate/gormigrate/v2 v2.1.3
 	github.com/golang-jwt/jwt/v5 v5.2.1
 	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 v0.35.0
@@ -17,13 +19,13 @@ require (
 )
 
 require (
+	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
 	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/sessions v1.0.2 // indirect
 	github.com/gin-contrib/sse v1.0.0 // indirect
 	github.com/glebarez/go-sqlite v1.21.2 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect