feat(sap_s4hana): add get_material_document and fix supplier invoice key order #4317

Bugbot Review

Bugbot Analysis Progress (6m 25s elapsed)

✅ Gathered PR context (5s)
✅ Completed bug detection (6m 18s)
✅ Posted analysis results (2s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_13c9956c-90c1-474d-8181-18939092a6f8

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 5be41b7. Configure here.}