chore: Allow parallel rollup instances (#2499)

.vscode/run-once.sh

@@ -1,46 +0,0 @@
-#!/usr/bin/env bash
-# Ensures only one instance of a command runs at a time. If a previous
-# instance is still running (e.g. orphaned after a VS Code crash), it is
-# killed before starting the new one.
-#
-# Kills the entire process tree (not just the stored PID) because `yarn`
-# spawns child processes (e.g. rollup/node) that hold the port. After
-# killing, waits for the port to be released before starting the new
-# instance.
-#
-# Usage: run-once.sh <pidfile> <port> <command...>
-
-set -euo pipefail
-
-PIDFILE="$1"; shift
-PORT="$1"; shift
-
-kill_tree() {
-  local pid="$1"
-  # Kill children first (depth-first), then the parent.
-  pkill -TERM -P "$pid" 2>/dev/null || true
-  kill "$pid" 2>/dev/null || true
-  tail --pid="$pid" -f /dev/null 2>/dev/null || true
-}
-
-wait_for_port() {
-  local port="$1"
-  local attempts=0
-  while ss -tlnp | grep -q ":${port} " && [ $attempts -lt 30 ]; do
-    sleep 0.2
-    attempts=$((attempts + 1))
-  done
-}
-
-if [ -f "$PIDFILE" ]; then
-  OLD_PID=$(cat "$PIDFILE" 2>/dev/null || true)
-  if [ -n "$OLD_PID" ] && kill -0 "$OLD_PID" 2>/dev/null; then
-    kill_tree "$OLD_PID"
-  fi
-  rm -f "$PIDFILE"
-  wait_for_port "$PORT"
-fi
-
-trap 'rm -f "$PIDFILE"' EXIT
-echo $$ > "$PIDFILE"
-exec "$@"

.vscode/tasks.json

@@ -4,8 +4,8 @@
     {
       "label": "Rollup",
       "type": "shell",
-      "command": "${workspaceFolder}/.vscode/run-once.sh",
-      "args": ["/tmp/advanced-camera-card-rollup.pid", "10001", "yarn", "start"],
+      "command": "yarn",
+      "args": ["start"],
       "problemMatcher": {
         "pattern": [
           {