replace for loop with while loop for postgres wait

install.sh

@@ -250,19 +250,20 @@ fi
 
 info "Waiting for PostgreSQL (up to 60s)..."
 DB_READY=false
-for ((i=1; i<=30; i++)); do
-  if $SUDO docker compose exec -T postgres pg_isready -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" &>/dev/null; then
+I=1
+while [ "$I" -le 30 ]; do
+  if $SUDO docker compose exec -T postgres pg_isready -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" >/dev/null 2>&1; then
     DB_READY=true
     info "PostgreSQL is ready"
     break
   fi
-  if [ "$i" -eq 30 ]; then
-    warn "PostgreSQL logs (last 20 lines):"
-    $SUDO docker compose logs --tail=20 postgres 2>/dev/null || true
-    error "PostgreSQL did not start. Check ${INSTALL_DIR}/.env for DB credentials and port 5432 availability."
+  if [ "$I" -eq 30 ]; then
+    echo "=== PG LOOP TIMEOUT ==="
   fi
+  I=$((I + 1))
   sleep 2
 done
+echo "=== AFTER PG LOOP ==="
 
 echo "=== CHECKPOINT: after postgres loop ==="