feat(mcp): tools de idiomas y traducciones

- Nueva categoria tools/languages: list_web_languages,
  get_record_translations y set_record_translations (registros, config,
  textos_generales y vars de modulo via builder_custom).
- Param lang opcional en list_table_records y get_record
  (options.translates de CocoDB).
- Docs actualizados (03/04/06/09/11b + ACAI_ENDPOINTS) con el modelo de
  cms_traducciones y los workflows de traduccion.

mcp-server/tools/records/list.js

@@ -15,9 +15,10 @@ export function registerListTableRecordsTool(server) {
             limit: z.number().optional().describe("Max records to return. Default: 50. Use 5-10 for previews, up to 200 max for large exports."),
             fields: z.array(z.string()).optional().describe("Return only these columns (e.g., ['num', 'titulo', 'precio']). Omit to return all columns. Always include 'num' if you need record IDs."),
             truncateText: z.number().optional().describe("Truncate string field values longer than this many chars. Appends '... [truncated, N chars]'. Combine with 'fields' for maximum token savings."),
+            lang: z.string().optional().describe("Language prefix (e.g. 'en'). Returns translated values for translatable fields"),
         }),
         { readOnlyHint: true, destructiveHint: false },
-        withAuth(async ({ tableName, page, where, limit, fields, truncateText }, extra) => {
+        withAuth(async ({ tableName, page, where, limit, fields, truncateText, lang }, extra) => {
             try {
                 // Validate required parameters
                 const validationError = validateRequired({ tableName }, ['tableName'], 'list_table_records');
@@ -33,6 +34,11 @@ export function registerListTableRecordsTool(server) {
                     options: {}
                 };
 
+                // Si se pide un idioma, el motor CocoDB aplica la traduccion en lectura.
+                if (lang) {
+                    payload.options.translates = lang;
+                }
+
                 // Send to CMS API via viewer_functions
                 const response = await AcaiHttpClient.postCmsApi(
                     credentials,