🐛(frontend) stop the installed app reopening the room it came from

site.webmanifest declared no start_url, so the page that linked
it became one and an install started inside a room reopened that
room on every launch. It now declares "/", moves out of public/
and takes VITE_APP_TITLE for name and short_name, which shipped
empty and leaned on the browser falling back to the title.

The frontend Dockerfile now declares that build argument, so the
value compose.yml passes stops being dropped.

CHANGELOG.md

@@ -42,6 +42,7 @@ and this project adheres to
 - 🐛(frontend) fall back to user.full_name on request-entry
 - 🚸(frontend) show two initials in the Avatar when possible
 - 🩹(all) clear the SonarCloud reliability finding and the lint debt
+- 🐛(frontend) stop the installed app reopening the room it came from
 
 ## [1.24.0] - 2026-07-21
 

src/frontend/Dockerfile

@@ -36,6 +36,9 @@ WORKDIR /home/frontend
 ARG VITE_API_BASE_URL
 ENV VITE_API_BASE_URL=${VITE_API_BASE_URL}
 
+ARG VITE_APP_TITLE
+ENV VITE_APP_TITLE=${VITE_APP_TITLE}
+
 RUN npm run build
 
 # ---- Front-end image ----

src/frontend/public/site.webmanifest

@@ -1 +0,0 @@
-{"name":"","short_name":"","icons":[{"src":"/android-chrome-192x192.png","sizes":"192x192","type":"image/png"},{"src":"/android-chrome-512x512.png","sizes":"512x512","type":"image/png"}],"theme_color":"#ffffff","background_color":"#ffffff","display":"standalone"}

src/frontend/site.webmanifest

@@ -0,0 +1,18 @@
+{
+  "icons": [
+    {
+      "src": "/android-chrome-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/android-chrome-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "start_url": "/",
+  "theme_color": "#ffffff",
+  "background_color": "#ffffff",
+  "display": "standalone"
+}

src/frontend/vite.config.ts

@@ -26,6 +26,20 @@ export default defineConfig(({ mode }) => {
             dest: 'assets/mediapipe/wasm',
             rename: { stripBase: 4 },
           },
+          {
+            // Kept out of public/ so the instance title reaches the manifest,
+            // the way index.html gets it through %VITE_APP_TITLE%.
+            src: 'site.webmanifest',
+            dest: '.',
+            transform: (content) => {
+              const title = env.VITE_APP_TITLE
+              return JSON.stringify({
+                ...JSON.parse(content),
+                name: title,
+                short_name: title,
+              })
+            },
+          },
         ],
       }),
       env.VITE_ANALYZE === 'true' &&