fix(ci): detect silent tool failures

.github/workflows/ci.yml

@@ -52,7 +52,10 @@ jobs:
         run: |
           # Run flutter analyze
           # Fails on errors or warnings only (info messages are allowed)
-          flutter analyze 2>&1 | tee analyze_output.txt || true
+          set +e
+          flutter analyze 2>&1 | tee analyze_output.txt
+          analyze_status=${PIPESTATUS[0]}
+          set -e
 
           # Check output for errors or warnings
           if grep -q "error •" analyze_output.txt; then
@@ -61,6 +64,9 @@ jobs:
           elif grep -q "warning •" analyze_output.txt; then
             echo "⚠️  Analysis completed with warnings"
             exit 1
+          elif [ "$analyze_status" -ne 0 ] && ! grep -q "info •" analyze_output.txt; then
+            echo "❌ Analyzer failed before producing diagnostics (exit $analyze_status)"
+            exit "$analyze_status"
           else
             echo "✅ Analysis passed!"
             exit 0