dtl: error logging with message, stack and code (#758)

* dtl: error logging with message, stack and code

* chore: add changeset

.changeset/cyan-days-act.md

+---
+'@eth-optimism/data-transport-layer': patch
+---
+
+Better error logging in the DTL

packages/data-transport-layer/src/services/l1-ingestion/service.ts

@@ -201,10 +201,13 @@ export class L1IngestionService extends BaseService<L1IngestionServiceOptions> {
         }
       } catch (err) {
         if (!this.running || this.options.dangerouslyCatchAllErrors) {
-          this.logger.error('Caught an unhandled error', { err })
+          this.logger.error('Caught an unhandled error', {
+            message: err.toString(),
+            stack: err.stack,
+            code: err.code,
+          })
           await sleep(this.options.pollingInterval)
         } else {
-          // TODO: Is this the best thing to do here?
           throw err
         }
       }