Fix zulip-monitor.sh LOG variable scope bug

Move LOG, TIMESTAMP, and ISSUES declarations from inside notify() to
script scope so they are available throughout the script.

scripts/zulip-monitor.sh

@@ -10,6 +10,11 @@ ZULIP_KEY="cKTDMZAPW08dk3zl05sStzO7HRztzyn8"
 OWNER_ZULIP_ID="9"
 
 
+LOG="/root/zulip-health-monitor.log"
+TIMESTAMP=$(date -u '+%Y-%m-%d %H:%M UTC')
+ISSUES=0
+echo "=== Zulip Health Check — $TIMESTAMP ===" >> "$LOG"
+
 notify() {
   local severity="$1" msg="$2"
   echo "[$severity] $msg"
@@ -22,16 +27,10 @@ notify() {
     -d "${form}" > /dev/null 2>&1 || true
   # Zulip stream post to #agent-hub on topic 'zulip-health'
   local stream_content="${severity} Zulip Monitor: ${msg}"
-  curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \ 
-    -u "${ZULIP_EMAIL}:${ZULIP_KEY}" \ 
-    -d "type=stream\&to=%5B7%5D\&topic=zulip-health\&content=$(python3 -c "import urllib.parse; print(urllib.parse.quote(str()))")" \ 
+  curl -sf -X POST "${ZULIP_SITE}/api/v1/messages" \
+    -u "${ZULIP_EMAIL}:${ZULIP_KEY}" \
+    -d "type=stream\&to=%5B7%5D\&topic=zulip-health\&content=$(python3 -c "import urllib.parse; print(urllib.parse.quote(str()))")" \
     > /dev/null 2>&1 || true
-
-TIMESTAMP=$(date -u '+%Y-%m-%d %H:%M UTC')
-ISSUES=0
-LOG="/root/zulip-health-monitor.log"
-
-echo "=== Zulip Health Check — $TIMESTAMP ===" >> "$LOG"
 }
 
 # ── Global: Zulip Server ──