fix(gitlab): Fix search value and validation order bugs

- Fix search endpoint to return numeric project IDs instead of path_with_namespace
  to maintain backward compatibility with existing issue creation/linking flows
- Move status validation before deletion of existing IntegrationExternalProject
  records to prevent data loss if validation fails

Co-authored-by: Armen Zambrano G. <armenzg@users.noreply.github.com>

Author: cursoragent

src/sentry/integrations/gitlab/integration.py

@@ -353,15 +353,9 @@ def update_organization_config(self, data: MutableMapping[str, Any]) -> None:
             ):
                 raise IntegrationError("Resolve and unresolve status are required.")
 
-            data["sync_status_forward"] = bool(project_mappings)
-
-            IntegrationExternalProject.objects.filter(
-                organization_integration_id=self.org_integration.id
-            ).delete()
-
+            # Validate status values before deleting existing records
+            valid_statuses = {GitLabIssueStatus.OPENED.value, GitLabIssueStatus.CLOSED.value}
             for project_path, statuses in project_mappings.items():
-                # Validate status values
-                valid_statuses = {GitLabIssueStatus.OPENED.value, GitLabIssueStatus.CLOSED.value}
                 if statuses["on_resolve"] not in valid_statuses:
                     raise IntegrationError(
                         f"Invalid resolve status: {statuses['on_resolve']}. Must be 'opened' or 'closed'."
@@ -371,6 +365,13 @@ def update_organization_config(self, data: MutableMapping[str, Any]) -> None:
                         f"Invalid unresolve status: {statuses['on_unresolve']}. Must be 'opened' or 'closed'."
                     )
 
+            data["sync_status_forward"] = bool(project_mappings)
+
+            IntegrationExternalProject.objects.filter(
+                organization_integration_id=self.org_integration.id
+            ).delete()
+
+            for project_path, statuses in project_mappings.items():
                 IntegrationExternalProject.objects.create(
                     organization_integration_id=self.org_integration.id,
                     external_id=project_path,

src/sentry/integrations/gitlab/search.py

@@ -79,7 +79,7 @@ def handle_search_repositories(
                 [
                     {
                         "label": project["name_with_namespace"],
-                        "value": project["path_with_namespace"],
+                        "value": project["id"],
                     }
                     for project in response
                 ]