Gitignore porting-reports/ (plugin payload capture artifacts)

The ccgs-hooks.js plugin writes JSONL debug captures to
porting-reports/runtime-payload-captures/. These are runtime debug
artifacts, not project content.

Author: Cipher-85

.gitignore

@@ -148,3 +148,6 @@ $RECYCLE.BIN/
 # Local planning docs (not tracked)
 oc-vs-codex.md
 opencode-plan.md
+
+# Plugin payload captures (debug artifacts)
+porting-reports/