Añade launchers de macOS/Linux con un click y hace runtime_control cross-platform

Equivalentes .command (doble-clic en Finder) de los .bat de Windows:
- setup_mac.command: bootstrap con un click (detecta Python 3.10+, crea .venv,
  instala requirements + Chromium de Playwright, copia .env.example -> .env).
- start/stop/restart/start_persistent_profile.command: espejo de los .bat,
  lanzan el server con nohup usando el python del .venv.
- mp_common.sh: helper compartido (raíz, venv, banners).

runtime_control.py ahora es cross-platform (IS_WINDOWS): lsof/ps/pgrep/kill en
POSIX, netstat/PowerShell/taskkill en Windows. _kill_tree_posix mata el árbol
padre+worker de uvicorn con SIGTERM.

.venv/ añadido a .gitignore. Docs actualizadas (CLAUDE.md, AGENTS.md,
PLAYWRIGHT_SESSION.md).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

restart.command

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+# ---------------------------------------------------------------------------
+# restart.command — Equivalente macOS/Linux de restart.bat.
+# Reinicia el servidor detectando automáticamente si estaba en modo normal o
+# perfil persistente (lee generated/runtime/last_mode), mata Chromium zombies
+# de Playwright y limpia batch files huérfanos.
+# ---------------------------------------------------------------------------
+set -euo pipefail
+source "$(dirname "${BASH_SOURCE[0]}")/mp_common.sh"
+
+banner "MP Manager - Reiniciando Servidor"
+
+PY="$(require_venv)" || { hold_window; exit 1; }
+
+# --- 1. Determinar modo activo (normal / persistent) ----------------------
+MODE="normal"
+LAST_MODE_FILE="generated/runtime/last_mode"
+if [ -f "$LAST_MODE_FILE" ]; then
+  MODE="$(tr -d '[:space:]' < "$LAST_MODE_FILE")"
+fi
+if [ "$MODE" != "normal" ] && [ "$MODE" != "persistent" ]; then
+  MODE="normal"
+fi
+info "Modo detectado: $MODE"
+
+# --- 2. Detener el server actual de forma segura --------------------------
+set +e
+"$PY" runtime_control.py stop --force
+set -e
+
+# --- 3. Limpiar Chromium headless huérfanos de Playwright -----------------
+# Solo matamos procesos cuya línea de comando apunta al Chromium de Playwright
+# (ms-playwright / chrome-headless-shell), NUNCA el Google Chrome del usuario.
+info "Limpiando zombies de Chromium headless de Playwright si los hay..."
+pkill -f "ms-playwright.*[Cc]hromium" 2>/dev/null || true
+pkill -f "chrome-headless-shell" 2>/dev/null || true
+
+# --- 4. Limpiar batch files interrumpidos del runtime ---------------------
+if compgen -G "generated/runtime/batch/_bulk_batch_*.json" >/dev/null; then
+  info "Limpiando batch files huérfanos..."
+  rm -f generated/runtime/batch/_bulk_batch_*.json
+fi
+rm -f generated/runtime/batch/_test_batch.json 2>/dev/null || true
+
+# --- 5. Pequeña espera para liberar el puerto -----------------------------
+info "Esperando 2 segundos para liberar puerto..."
+sleep 2
+
+# --- 6. Relanzar en el modo correcto --------------------------------------
+mkdir -p generated/runtime generated/logs
+LOG="$PROJECT_DIR/generated/logs/server.out"
+
+if [ "$MODE" = "persistent" ]; then
+  export GHL_BROWSER_PROFILE_DIR="$PROJECT_DIR/generated/browser/profile"
+  info "Relanzando en modo PERFIL PERSISTENTE."
+  info "GHL_BROWSER_PROFILE_DIR=$GHL_BROWSER_PROFILE_DIR"
+  if [ ! -d "$GHL_BROWSER_PROFILE_DIR" ]; then
+    echo
+    warn "El perfil persistente aún no existe."
+    warn 'Cuando arranque, usa "Renovar sesión Bucéfalo" en el dashboard.'
+    echo
+  fi
+  echo "persistent" > "$LAST_MODE_FILE"
+else
+  info "Relanzando en modo NORMAL."
+  echo "normal" > "$LAST_MODE_FILE"
+fi
+
+nohup "$PY" "$PROJECT_DIR/main.py" >> "$LOG" 2>&1 &
+disown || true
+
+echo
+echo "==================================================="
+echo "  Servidor reiniciado en modo $MODE."
+echo "  Logs:        generated/logs/server.out"
+echo "  Para detener: stop.command"
+echo "==================================================="
+hold_window