📦 build(scripts): make start script to only do it's supposed work, add clean script

scripts/clean.sh

@@ -0,0 +1,6 @@
+set -e
+
+builddir="${1:-./build}"
+
+echo "[info] cleaning build dir: \"$builddir\""
+rm -r "$builddir"

scripts/start.sh

@@ -20,9 +20,10 @@ function start() {
     exec "$file"
 }
 
-if [[ -f "$file" ]]; then
+if [[ -f $file ]]; then
     start
 else
-    pnpm build
-    start
+    echo "[error] can't start project: no executable found on default directory"
+    echo "[tip] specify the executable path: start \"\$path\""
+    exit 1
 fi