♻️ refactor(auth): move UserContextKey from pkg/greet to pkg/auth

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

pkg/server/middleware.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"net/http"
 
-	"dance-lessons-coach/pkg/greet"
+	"dance-lessons-coach/pkg/auth"
 	"dance-lessons-coach/pkg/user"
 
 	"github.com/rs/zerolog/log"
@@ -54,7 +54,7 @@ func (m *AuthMiddleware) Middleware(next http.Handler) http.Handler {
 		}
 
 		// Add user to context
-		ctxWithUser := context.WithValue(ctx, greet.UserContextKey, validatedUser)
+		ctxWithUser := context.WithValue(ctx, auth.UserContextKey, validatedUser)
 		r = r.WithContext(ctxWithUser)
 
 		// Continue to next handler