backend: llevar tambien bottombar y legacy/export al router del fork

Quedaban tres rutas propias sueltas dentro de la cadena de upstream:
/settings/bottombar (GET y POST, la personalizacion de la barra inferior) y
/legacy/export en GET, que upstream solo tiene en POST.

Con esto backend.js queda sin ninguna ruta de la rama: 8899 lineas frente a las
9067 de partida, y el unico rastro son las 4 lineas del require de fork_routes
en el array de middleware.

Verificado: el router monta las 11 rutas y backend.js no conserva referencias
a identificadores movidos.

src/backend/backend.js

@@ -6162,19 +6162,6 @@ router
       ctx.redirect(safeReturnTo(ctx, '/forum', ['/forum']));
     }
   })
-  .get('/legacy/export', async (ctx) => {
-    if (!isLoopbackRequest(ctx)) { ctx.status = 403; ctx.body = ''; return; }
-    const pw = ctx.query && ctx.query.password;
-    if (!pw || pw.length < 32) return ctx.redirect('/legacy');
-    try {
-      const { filename, data } = await legacyModel.exportData({ password: pw });
-      ctx.set('Content-Type', 'application/octet-stream');
-      ctx.set('Content-Disposition', `attachment; filename="${filename}"`);
-      ctx.set('Content-Length', String(data.length));
-      ctx.body = data;
-      try { onboardingModel.markStep('backup'); } catch (_) {}
-    } catch (error) { sendErrorPage(ctx, error.message); }
-  })
   .post('/legacy/import', koaBody({
     multipart: true,
     formidable: {
@@ -7975,28 +7962,6 @@ router
     console.log("oasis@version: running install.sh...", shOut, shErr);
     safeRefererRedirect(ctx, '/settings');
   })
-  .get("/settings/bottombar", async (ctx) => {
-    ctx.body = require("../views/main_views").bottomBarPickerView();
-  })
-  .post("/settings/bottombar", koaBody(), async (ctx) => {
-    const cfg = getConfig();
-    const MAX = 4;
-    const body = ctx.request.body || {};
-    const action = String(body.action || '').trim();
-    const key = String(body.key || '').trim();
-    const catalog = require("../views/main_views").PINNABLE_MODULES || [];
-    let pins = Array.isArray(cfg.bottomBarPins) ? cfg.bottomBarPins.slice() : [];
-    if (action === 'add') {
-      if (key && catalog.some(m => m.key === key) && !pins.includes(key) && pins.length < MAX) pins.push(key);
-    } else if (action === 'remove') {
-      pins = pins.filter(k => k !== key);
-    } else if (action === 'clear') {
-      pins = [];
-    }
-    cfg.bottomBarPins = pins.slice(0, MAX);
-    saveConfig(cfg);
-    ctx.redirect('/settings/bottombar');
-  })
   .post("/settings/theme", koaBody(), async (ctx) => {
     const theme = String(ctx.request.body.theme || "").trim(), cfg = getConfig();
     cfg.themes.current = theme || "Dark-SNH";
@@ -8691,7 +8656,9 @@ const middleware = [
     await next();
   },
   // rutas propias de la rama (Karvan): fuera de la cadena de upstream
-  require('./fork_routes')({ cooler, pull, pmModel, checkMod, getViewerId }),
+  require('./fork_routes')({ cooler, pull, pmModel, checkMod, getViewerId,
+                            getConfig, saveConfig, legacyModel, onboardingModel,
+                            isLoopbackRequest, sendErrorPage }),
   routes,
 ];
 const app = http({ host, port, middleware, allowHost: config.allowHost });

src/backend/fork_routes.js

@@ -17,7 +17,9 @@ const { stripDangerousTags } = require("./sanitizeHtml");
 const karvanModel = require('../models/karvan_model')({}); // FORK_IA_UX: salas efímeras en RAM (mensajes temporales + señalización WebRTC)
 const { karvanView, karvanRoomView } = require("../views/karvan_view");
 
-module.exports = ({ cooler, pull, pmModel, checkMod, getViewerId }) => {
+module.exports = ({ cooler, pull, pmModel, checkMod, getViewerId,
+                    getConfig, saveConfig, legacyModel, onboardingModel,
+                    isLoopbackRequest, sendErrorPage }) => {
 // FORK_IA_UX Fase 2 (cross-device): relay de MENSAJES de Karvan por privados SSB. Funciona vía un pub
 // (el privado se replica al otro móvil); los SIGNAL de WebRTC NO se relayan (serían demasiados/lentos por el log).
 // No toca el arranque del SSB. Ingesta por stream EN VIVO (no polling) → eficiente.
@@ -155,6 +157,41 @@ async function karvanInviteAuthor(roomId) {
     if (!checkMod(ctx, 'karvanMod')) { ctx.status = 403; ctx.body = { error: 'off' }; return; }
     const r = karvanModel.getSignals(ctx.params.id, { forId: ctx.query.for || '', since: ctx.query.since || 0 });
     ctx.body = r || { signals: [], members: [] };
+  })
+  .get("/settings/bottombar", async (ctx) => {
+    ctx.body = require("../views/main_views").bottomBarPickerView();
+  })
+  .post("/settings/bottombar", koaBody(), async (ctx) => {
+    const cfg = getConfig();
+    const MAX = 4;
+    const body = ctx.request.body || {};
+    const action = String(body.action || '').trim();
+    const key = String(body.key || '').trim();
+    const catalog = require("../views/main_views").PINNABLE_MODULES || [];
+    let pins = Array.isArray(cfg.bottomBarPins) ? cfg.bottomBarPins.slice() : [];
+    if (action === 'add') {
+      if (key && catalog.some(m => m.key === key) && !pins.includes(key) && pins.length < MAX) pins.push(key);
+    } else if (action === 'remove') {
+      pins = pins.filter(k => k !== key);
+    } else if (action === 'clear') {
+      pins = [];
+    }
+    cfg.bottomBarPins = pins.slice(0, MAX);
+    saveConfig(cfg);
+    ctx.redirect('/settings/bottombar');
+  })
+  .get('/legacy/export', async (ctx) => {
+    if (!isLoopbackRequest(ctx)) { ctx.status = 403; ctx.body = ''; return; }
+    const pw = ctx.query && ctx.query.password;
+    if (!pw || pw.length < 32) return ctx.redirect('/legacy');
+    try {
+      const { filename, data } = await legacyModel.exportData({ password: pw });
+      ctx.set('Content-Type', 'application/octet-stream');
+      ctx.set('Content-Disposition', `attachment; filename="${filename}"`);
+      ctx.set('Content-Length', String(data.length));
+      ctx.body = data;
+      try { onboardingModel.markStep('backup'); } catch (_) {}
+    } catch (error) { sendErrorPage(ctx, error.message); }
   });
 
   return forkRouter.routes();