feat: add setting to toggle model provider visibility in chat composer (#1194)

app/src/main/java/com/m57/hermescontrol/data/config/ServerStoreState.kt

@@ -28,6 +28,7 @@ data class ServerStoreState(
     val showUserMessageTokens: Boolean = true,
     val showAssistantMessageTokens: Boolean = true,
     val showTokensPerSecond: Boolean = true,
+    val showModelProvider: Boolean = false,
     // App display language. "system" = follow device locale; otherwise a BCP-47
     // language code such as "en" or "ko". Applied via ContextWrapper in MainActivity.
     val appLanguage: String = "system",

app/src/main/java/com/m57/hermescontrol/data/local/AuthManager.kt

@@ -850,6 +850,12 @@ object AuthManager {
         serverStore.update { it.copy(showTokensPerSecond = enabled) }
     }
 
+    fun isModelProviderShown(): Boolean = serverStore.getLatestState().showModelProvider
+
+    fun setModelProviderShown(shown: Boolean) {
+        serverStore.update { it.copy(showModelProvider = shown) }
+    }
+
     // ── Chat Font Scale (issue #1004) ───────────────────────────────────
 
     fun getChatFontScale(): Float = serverStore.getLatestState().chatFontScale