feat: Implement a sequential test runner script and integrate it into the deploy workflow.

shared/scripts/test-sequential.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+set -e
+
+echo "🔍 Finding test files..."
+TEST_FILES=$(find . -name "*.test.ts" -not -path "*/node_modules/*")
+
+if [ -z "$TEST_FILES" ]; then
+    echo "⚠️ No test files found!"
+    exit 0
+fi
+
+echo "🧪 Running tests sequentially..."
+FAILED=0
+
+for FILE in $TEST_FILES; do
+    echo "---------------------------------------------------"
+    echo "running: $FILE"
+    if bun test "$FILE"; then
+        echo "✅ passed: $FILE"
+    else
+        echo "❌ failed: $FILE"
+        FAILED=1
+        # Fail fast
+        exit 1
+    fi
+done
+
+if [ $FAILED -eq 0 ]; then
+    echo "---------------------------------------------------"
+    echo "✅ All tests passed!"
+    exit 0
+else
+    echo "---------------------------------------------------"
+    echo "❌ Some tests failed."
+    exit 1
+fi