fix(ci): don't re-dispatch techapi-updated on _verify sync commits

verify-status (in TechEngine) commits data/_verify/status.json back to TechAPI.
With only TechEngine paths-ignored, that commit re-fired techapi-updated and
looped verify-status every ~3 min. Ignore data/_verify/** so engine-generated
sync commits don't trigger a reverse sync.

Refs #1

Author: Seungpyo1007

.github/workflows/notify-engine.yml

@@ -17,6 +17,9 @@ on:
     branches: [main]
     paths-ignore:
       - "TechEngine"
+      # status.json is generated BY the engine (verify-status); a pure _verify
+      # sync commit must not re-dispatch techapi-updated, or it loops forever.
+      - "data/_verify/**"
   workflow_dispatch:   # manual reverse-sync trigger (uses main HEAD sha)
 
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