Update docker-compose.yml

docker-compose.yml

···
     # Copy files from . to deno-code volume on start
     entrypoint: >
       sh -c "
-        cp -r /src/* /deno-dir/ &&
-        deno run -A main.ts
+        echo 'Copying files from /src to /deno-dir...' &&
+        cp -R /src/. /deno-dir/ &&
+        echo 'Files copied. Contents of /deno-dir:' &&
+        ls -la /deno-dir/ &&
+        echo 'Running application...' &&
+        deno run -A /deno-dir/main.ts
       "
     # Mount source code as read-only at different path for copying
     volumes: