fix: handle DELETED status from GitHub GraphQL API

The GitHub GraphQL API returns uppercase status values (DELETED, ADDED,
MODIFIED) but the code only checked for lowercase 'removed'. This caused
deleted files to attempt content retrieval instead of being added to the
deprecation queue.

- Update status check to handle both 'DELETED' and 'removed'
- Add test case for DELETED status handling

Author: cbullinger

services/workflow_processor.go

@@ -127,7 +127,8 @@ func (wp *workflowProcessor) processFileForWorkflow(
 		})
 
 		// Handle file based on status
-		if file.Status == "removed" {
+		// GitHub GraphQL API returns uppercase status: "DELETED", "ADDED", "MODIFIED", etc.
+		if file.Status == "DELETED" || file.Status == "removed" {
 			// Add to deprecation map
 			wp.addToDeprecationMap(workflow, targetPath)
 		} else {

services/workflow_processor_test.go

@@ -731,6 +731,11 @@ func TestWorkflowProcessor_FileStatusHandling(t *testing.T) {
 			status:           "removed",
 			expectDeprecated: true,
 		},
+		{
+			name:             "DELETED file goes to deprecation (GraphQL API format)",
+			status:           "DELETED",
+			expectDeprecated: true,
+		},
 		{
 			name:             "added file does not go to deprecation",
 			status:           "added",