feat: add bash infra installer and diagnostic functions

10 funciones Bash del dominio infra: instaladores de herramientas de desarrollo
(install_go, install_nodejs, install_pnpm, install_python312, install_uv,
install_volta, install_wails), diagnostico del sistema (analyze_disk_space,
detect_wsl, list_listening_ports). Automatizan la configuracion del entorno
de desarrollo en Linux/WSL.
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---
name: install_volta
kind: function
lang: bash
domain: infra
version: "1.0.0"
purity: impure
signature: "install_volta() -> void"
description: "Instala Volta, el gestor de versiones de Node.js, usando el instalador oficial de get.volta.sh. Configura VOLTA_HOME y PATH en ~/.bashrc y ~/.zshrc. Idempotente: si Volta ya está instalado, informa y termina."
tags: [bash, install, volta, node]
uses_functions: []
uses_types: []
returns: []
returns_optional: false
error_type: "error_go_core"
imports: []
params:
- name: "(ninguno)"
desc: "no acepta argumentos"
output: "progreso a stdout; exit code 1 si curl no está disponible o falla la instalación"
tested: false
tests: []
test_file_path: ""
file_path: "bash/functions/infra/install_volta.sh"
source_repo: "https://gitea-dgg044oo04woo4ggcsws4gk0.organic-machine.com/egutierrez/DevLauncher.git"
source_license: "MIT"
source_file: "scripts/linux/instaladores/instalar_volta.sh"
---
## Ejemplo
```bash
source bash/functions/infra/install_volta.sh
install_volta
# Uso posterior (tras recargar shell)
volta install node
volta install pnpm
volta list
```
## Notas
Volta se instala en `$HOME/.volta`. Requiere `curl`. A diferencia de nvm, Volta gestiona versiones de Node.js a nivel de proyecto via `package.json`. Después de instalar, recargar el shell con `source ~/.bashrc`.