ci: make notify-engine dispatch best-effort

TechEngine is org-owned (GetTechAPI), so the cross-repo dispatch needs an
org-approved PAT. Until ENGINE_TOKEN is approved, the dispatch 403s; mark the
step continue-on-error so a real push to main doesn't show a failed run. The
reverse sync activates automatically once the token is authorized.

Author: Seungpyo1007

.github/workflows/notify-engine.yml

@@ -32,8 +32,12 @@ jobs:
         if: env.ENGINE_TOKEN == ''
         run: echo "::warning::ENGINE_TOKEN not configured — reverse autosync dormant; skipping dispatch."
 
+      # Best-effort: TechEngine is org-owned (GetTechAPI), so ENGINE_TOKEN must be
+      # an org-approved PAT with Contents:write. If it isn't yet, the dispatch
+      # 403s — warn instead of failing the whole run on every real push.
       - name: Dispatch techapi-updated to TechEngine
         if: env.ENGINE_TOKEN != ''
+        continue-on-error: true
         uses: peter-evans/repository-dispatch@v3
         with:
           token: ${{ secrets.ENGINE_TOKEN }}