Add TED Scraper Configuration and Cron Scheduler Implementation

- Introduced a new configuration file for the TED scraper, defining database connection settings, logging preferences, and scraping parameters.
- Implemented a CronScheduler to manage scheduled tasks for TED operations, utilizing the robfig/cron library for scheduling.
- Added new entities and structures for handling TED XML data, including eForms and tender-related information, enhancing the scraper's functionality.
- Updated the main application to initialize the TED scraper with the new configuration and set up graceful shutdown handling.
- Removed the deprecated scraping implementation to streamline the codebase and focus on the new architecture.

ted/eform/validation.go

@@ -0,0 +1,19 @@
+package eform
+
+// =====================================================
+// VALIDATION HELPER TYPES
+// =====================================================
+
+// ValidationError represents a validation error
+type ValidationError struct {
+	Field   string `json:"field"`
+	Tag     string `json:"tag"`
+	Value   string `json:"value"`
+	Message string `json:"message"`
+}
+
+// ValidationResult represents the result of validation
+type ValidationResult struct {
+	Valid  bool              `json:"valid"`
+	Errors []ValidationError `json:"errors,omitempty"`
+}