fix(core): Restore workflow ID during execution creation (#8031)

## Summary
Restore workflow ID during execution creation removed by [this
PR](https://github.com/n8n-io/n8n/pull/8002/files#diff-c8cbb62ca9ab2ae45e5f565cd8c63fff6475809a6241ea0b90acc575615224af).
The missing workflow ID, and more generally the fact that `workflow.id`
is optional when it should not be, causes `PermissionChecker.check` to
misreport a credential as inaccessible when it should be accessible.

More generally, start reporting ID-less workflows so we can root them
out and prevent this at type level.

## Related tickets and issues

https://n8nio.slack.com/archives/C035KBDA917/p1702539465555529

packages/cli/src/commands/worker.ts

@@ -13,7 +13,13 @@ import type {
 	INodeTypes,
 	IRun,
 } from 'n8n-workflow';
-import { Workflow, NodeOperationError, sleep, ApplicationError } from 'n8n-workflow';
+import {
+	Workflow,
+	NodeOperationError,
+	sleep,
+	ApplicationError,
+	ErrorReporterProxy as EventReporter,
+} from 'n8n-workflow';
 
 import * as Db from '@/Db';
 import * as ResponseHelper from '@/ResponseHelper';
@@ -130,7 +136,15 @@ export class Worker extends BaseCommand {
 				{ extra: { executionId } },
 			);
 		}
-		const workflowId = fullExecutionData.workflowData.id!;
+		const workflowId = fullExecutionData.workflowData.id!; // @tech_debt Ensure this is not optional
+
+		if (!workflowId) {
+			EventReporter.report('Detected ID-less workflow', {
+				level: 'info',
+				extra: { execution: fullExecutionData },
+			});
+		}
+
 		this.logger.info(
 			`Start job: ${job.id} (Workflow ID: ${workflowId} | Execution: ${executionId})`,
 		);