feat: add Telegram notifications to PostSync smoke tests + new tests for researchowl/openclaw

- Create telegram-notify secret in n8n, portfolio, polymarket-bot, researchowl, openclaw
  namespaces (values mirrored from monitoring/grafana-telegram)
- Update existing smoke tests (n8n, portfolio, polymarket-bot) to send [OK]/[FAIL]
  Telegram notifications on success/failure
- Add postsync-smoke-test for openclaw (curl GET / on port 18789)
- Add postsync-smoke-test for researchowl (no HTTP port; checks readyReplicas via
  k8s API using a smoke-test-reader ServiceAccount + Role + RoleBinding)

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

polymarket-bot/postsync-smoke-test.yaml

@@ -15,6 +15,17 @@ spec:
       containers:
       - name: smoke-test
         image: curlimages/curl:latest
+        env:
+        - name: TELEGRAM_BOT_TOKEN
+          valueFrom:
+            secretKeyRef:
+              name: telegram-notify
+              key: TELEGRAM_BOT_TOKEN
+        - name: TELEGRAM_CHAT_ID
+          valueFrom:
+            secretKeyRef:
+              name: telegram-notify
+              key: TELEGRAM_CHAT_ID
         command: ["/bin/sh", "-c"]
         args:
           - |
@@ -22,22 +33,36 @@ spec:
             API="http://api.polymarket-bot.svc.cluster.local:8000"
             DASH="http://dashboard.polymarket-bot.svc.cluster.local:80"
 
+            notify() {
+              curl -s --max-time 10 -X POST \
+                "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \
+                -d "chat_id=${TELEGRAM_CHAT_ID}" \
+                --data-urlencode "text=$1" \
+                > /dev/null || true
+            }
+
+            fail() {
+              notify "[FAIL] polymarket-bot PostSync: $1"
+              exit 1
+            }
+
             echo "--- [1/3] GET /api/summary ---"
             SUMMARY=$(curl -sf --max-time 15 --retry 3 --retry-delay 5 --retry-all-errors \
-              "$API/api/summary")
+              "$API/api/summary") || fail "GET /api/summary unreachable"
             echo "$SUMMARY"
             echo "$SUMMARY" | grep -qE '"paper_mode"\s*:\s*true' \
-              || { echo "FAIL: paper_mode is not true"; exit 1; }
+              || fail "paper_mode is not true"
             echo "OK"
 
             echo "--- [2/3] GET /api/trades?status=open ---"
             curl -sf --max-time 15 --retry 3 --retry-delay 5 --retry-all-errors \
-              "$API/api/trades?status=open" > /dev/null
+              "$API/api/trades?status=open" > /dev/null || fail "GET /api/trades unreachable"
             echo "OK"
 
             echo "--- [3/3] Dashboard HTTP 200 ---"
             curl -sf --max-time 15 --retry 3 --retry-delay 5 --retry-all-errors \
-              "$DASH/" > /dev/null
+              "$DASH/" > /dev/null || fail "dashboard returned non-200"
             echo "OK"
 
+            notify "[OK] polymarket-bot PostSync passed"
             echo "=== polymarket-bot: all smoke tests passed ==="