feat(orders): add resync and delete order buttons

Resync soft-deletes from Oracle then re-imports from GoMag with fresh
article data. Delete soft-deletes and marks DELETED_IN_ROA. Both have
invoice safety gates (refuse if invoiced or Oracle unavailable).

UI: split modal footer (Delete left, Resync+Close right), inline
confirm pattern (no native confirm()), dashboard row hover action
icons, disabled+tooltip for invoiced orders. 8 unit tests for safety
gates and happy paths.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

api/app/routers/sync.py

@@ -476,6 +476,23 @@ async def retry_order(order_number: str):
     return result
 
 
+@router.post("/api/orders/{order_number}/resync")
+async def resync_order(order_number: str):
+    """Resync an imported order: soft-delete from Oracle then re-import from GoMag."""
+    from ..services import retry_service
+    app_settings = await sqlite_service.get_app_settings()
+    result = await retry_service.resync_single_order(order_number, app_settings)
+    return result
+
+
+@router.post("/api/orders/{order_number}/delete")
+async def delete_order(order_number: str):
+    """Delete an imported order from Oracle (soft-delete)."""
+    from ..services import retry_service
+    result = await retry_service.delete_single_order(order_number)
+    return result
+
+
 @router.post("/api/orders/{order_number}/resync-partner")
 async def resync_partner(order_number: str):
     """Manual partner resync for invoiced orders with partner_mismatch=1.