refactor: move routes under /tori/ prefix and add /api/obj mount

Routes now live at /tori/api, /ws/tori, and static files at /tori/.
Root / redirects to /tori/. Object storage mounted at /api/obj.
Dev proxy updated accordingly.

web/vite.config.ts

@@ -2,11 +2,13 @@ import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
 
 export default defineConfig({
+  base: process.env.VITE_BASE_PATH || '/tori/',
   plugins: [vue()],
   server: {
     proxy: {
-      '/api': 'http://localhost:3000',
-      '/ws': {
+      '/tori/api': 'http://localhost:3000',
+      '/api/obj': 'http://localhost:3000',
+      '/ws/tori': {
         target: 'ws://localhost:3000',
         ws: true,
       },