Harden Tailwind Docker build and add deploy verification

scripts/verify-tailwind-css.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+CONTAINER_NAME="${1:-llm-monitor-app}"
+CSS_PATH="/app/app/web/static/css/output.css"
+MIN_LINES="${MIN_TAILWIND_LINES:-100}"
+
+if ! docker ps --format '{{.Names}}' | grep -Fxq "$CONTAINER_NAME"; then
+  echo "[verify-css] ERROR: container '$CONTAINER_NAME' non in esecuzione"
+  exit 1
+fi
+
+if ! docker exec "$CONTAINER_NAME" test -f "$CSS_PATH"; then
+  echo "[verify-css] ERROR: file CSS non trovato: $CSS_PATH"
+  exit 1
+fi
+
+LINES=$(docker exec "$CONTAINER_NAME" wc -l "$CSS_PATH" | awk '{print $1}')
+BYTES=$(docker exec "$CONTAINER_NAME" wc -c "$CSS_PATH" | awk '{print $1}')
+
+echo "[verify-css] $CSS_PATH -> ${LINES} lines, ${BYTES} bytes"
+
+if [[ "$LINES" -lt "$MIN_LINES" ]]; then
+  echo "[verify-css] ERROR: output.css ha meno di ${MIN_LINES} linee"
+  exit 1
+fi
+
+echo "[verify-css] OK: Tailwind CSS compilato correttamente"