fix: add auto_cache to sshfs mounts to prevent stale reads in Emacs

sshfs kernel cache caused Emacs to show outdated file contents after
edits via Claude Code. Adding auto_cache invalidates cache when
mtime/size changes, fixing the stale data problem without sacrificing
performance.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

@@ -332,6 +332,7 @@ sudo tail -f /var/log/nginx/napi-error.log         # Nginx errors
 | `twemoji is not defined` | Falta `twemoji.min.js` en el root del site | `sudo cp /var/www/napi/twemoji.min.js /var/www/napiN/` |
 | `404` en `/notas.md` | Carpeta del alumno no existe en `data/` | Crear carpeta + copiar plantilla |
 | sshfs zombie | Conexión SSH caída | `fusermount -uz ~/napi-dataN && systemctl --user restart ...mount` |
+| Emacs muestra datos stale tras editar | sshfs cachea lecturas del kernel | Añadir `auto_cache` a las Options del mount (ver abajo) |
 | Watcher no detecta re-entregas | Versión antigua del watcher | Actualizar a v7+ y reiniciar servicio |
 | `__pycache__` en notificaciones | Watcher < v6 | Actualizar a v7+ |
 
@@ -355,4 +356,5 @@ sudo tail -f /var/log/nginx/napi-error.log         # Nginx errors
 | 2026-02-22 | MVP desplegado: notas.qu3v3d0.tech para DDAW2 (19 alumnos) |
 | 2026-02-25 | ASIR1 desplegado: asir1.qu3v3d0.tech para Programación (21 alumnos) |
 | 2026-02-25 | Watcher ASIR1 v7: batching, re-entregas, Windows-safe, __pycache__ filter, nombres completos |
+| 2026-03-02 | sshfs mounts: añadido `auto_cache` para evitar datos stale en Emacs |
 | 2027-02-04 | Renovar certificado SSL wildcard (caduca ~365 días desde 2026-02-04) |

scripts/home-fenix-napi-data.mount

@@ -7,7 +7,7 @@ Wants=network-online.target
 What=fenix@qu3v3d0.tech:/var/www/napi/data
 Where=/home/fenix/napi-data
 Type=fuse.sshfs
-Options=reconnect,ServerAliveInterval=15,ServerAliveCountMax=3,IdentityFile=/home/fenix/.ssh/id_rsa,_netdev,allow_other
+Options=reconnect,ServerAliveInterval=15,ServerAliveCountMax=3,IdentityFile=/home/fenix/.ssh/id_rsa,_netdev,allow_other,auto_cache
 
 [Install]
 WantedBy=default.target

scripts/home-fenix-napi-data2.mount

@@ -7,7 +7,7 @@ Wants=network-online.target
 What=fenix@qu3v3d0.tech:/var/www/napi2/data
 Where=/home/fenix/napi-data2
 Type=fuse.sshfs
-Options=reconnect,ServerAliveInterval=15,ServerAliveCountMax=3,IdentityFile=/home/fenix/.ssh/id_rsa,_netdev,allow_other
+Options=reconnect,ServerAliveInterval=15,ServerAliveCountMax=3,IdentityFile=/home/fenix/.ssh/id_rsa,_netdev,allow_other,auto_cache
 
 [Install]
 WantedBy=default.target