chore: add valgrind script

.gitignore

@@ -1,3 +1,5 @@
 
 bin/*
 !bin/.gitkeep
+
+valgrind.log

scripts/valgrind_check.sh

@@ -0,0 +1,22 @@
+#! /usr/bin/env sh
+# valgrind_check.sh
+# Run the program with Valgrind to detect memory issues.
+
+main() {
+  local program="./bin/program"
+  local valgrind_log="./valgrind.log"
+
+  local valgrind_flags="--leak-check=full --show-leak-kinds=all --track-origins=yes --verbose"
+
+  if [[ ! -f "$program" ]]; then
+    echo "Error: Program '$program' not found. Build it first."
+    exit 1
+  fi
+
+  echo "Running Valgrind on $program..."
+  valgrind $valgrind_flags --log-file="$valgrind_log" "$program"
+
+  echo "Valgrind run complete. Output saved in $valgrind_log"
+}
+
+main $@