fix: fetch manifest from <server>/manifest.json

app/src/main/java/top/yeij/hearth/MainActivity.kt

@@ -131,7 +131,7 @@ class MainActivity : Activity() {
 
         override fun setServerUrl(url: String) {
             prefs.edit().putString("server_url", url).apply()
-            if (::webAppRepository.isInitialized) webAppRepository.setManifestUrl(url)
+            if (::webAppRepository.isInitialized) webAppRepository.setServerUrl(url)
         }
     }
 

app/src/main/java/top/yeij/hearth/webapp/WebAppRepository.kt

@@ -28,18 +28,21 @@ interface HttpClient {
 class WebAppRepository(
     private val http: HttpClient,
     private val cache: CacheManager,
-    private var manifestUrl: String,
+    private var serverUrl: String,
 ) {
     private val gson = Gson()
 
-    // 更新清单地址（设置页修改服务器地址后调用）
-    // Update the manifest URL (called after the settings page changes the server URL)
-    fun setManifestUrl(url: String) {
-        manifestUrl = url
-        Log.d(TAG, "setManifestUrl: $url")
+    // 更新服务器根地址（设置页修改服务器地址后调用）
+    // Update the server root URL (called after the settings page changes it)
+    fun setServerUrl(url: String) {
+        serverUrl = url
+        Log.d(TAG, "setServerUrl: $url")
     }
 
     fun fetchManifest(): List<WebApp> {
+        // 服务器地址是根目录，清单固定拉 <根>/manifest.json
+        // The server URL is the root; the manifest is always <root>/manifest.json
+        val manifestUrl = serverUrl.trimEnd('/') + "/manifest.json"
         val body = http.get(manifestUrl)
         Log.d(TAG, "fetchManifest: url=$manifestUrl bodyNull=${body == null}")
         if (body != null) {