refactor: reorganize struct fields, add new handlers and storage backends

- [x] Reorder struct fields across codebase for consistency
- [x] Add analytics event handlers and tests
- [x] Add authentication API key management handlers and tests
- [x] Add pre-warming control handlers and tests
- [x] Implement S3 storage backend with tests
- [x] Implement SMB/CIFS storage backend with tests
- [x] Add CDN middleware tests
- [x] Integrate analytics tracking into cache manager
- [x] Add S3 and SMB storage initialization in app setup
- [x] Add CDN caching to proxy handlers
- [x] Remove distributed locking (Redis lock manager)
- [x] Remove proxy common package and utilities
- [x] Remove standalone HTTP server package
- [x] Remove logger middleware
- [x] Simplify error handling utilities
- [x] Update config with S3 and SMB options
- [x] Update cache manager signature to include analytics

pkg/app/handlers_admin.go

@@ -110,13 +110,13 @@ func (a *App) handleListBypasses(c *fiber.Ctx) error {
 
 // CreateBypassRequest represents the request body for creating a bypass
 type CreateBypassRequest struct {
-	Type           metadata.BypassType `json:"type"`                 // "cve" or "package"
-	Target         string              `json:"target"`               // CVE ID or package name
-	Reason         string              `json:"reason"`               // Why this bypass is needed
-	CreatedBy      string              `json:"created_by"`           // Admin username
-	ExpiresInHours int                 `json:"expires_in_hours"`     // How many hours until expiration
-	AppliesTo      string              `json:"applies_to,omitempty"` // Optional: limit CVE bypass to specific package
-	NotifyOnExpiry bool                `json:"notify_on_expiry"`     // Send notification when expired
+	Type           metadata.BypassType `json:"type"`
+	Target         string              `json:"target"`
+	Reason         string              `json:"reason"`
+	CreatedBy      string              `json:"created_by"`
+	AppliesTo      string              `json:"applies_to,omitempty"`
+	ExpiresInHours int                 `json:"expires_in_hours"`
+	NotifyOnExpiry bool                `json:"notify_on_expiry"`
 }
 
 // handleCreateBypass creates a new CVE bypass