fix(cicd): use correct context field names for Log Center fingerprint

Add job_name and step_name to match Log Center's CI/CD fingerprint
generation, replacing failed_step which was not recognized. This fixes
deduplication causing new CI/CD failures to be silently dropped.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -118,11 +118,12 @@ jobs:
                 \"stack_trace\": [\"${ERROR_LOG}\"]
               },
               \"context\": {
+                \"job_name\": \"build-and-deploy\",
+                \"step_name\": \"${FAILED_STEP}\",
                 \"workflow\": \"${{ github.workflow }}\",
                 \"run_id\": \"${{ github.run_id }}\",
                 \"branch\": \"${{ github.ref_name }}\",
                 \"actor\": \"${{ github.actor }}\",
-                \"failed_step\": \"${FAILED_STEP}\",
                 \"commit\": \"${{ github.sha }}\"
               }
             }" || true