Update documentation to the latest state of the development

Author: TimoPtr

docs/android/architecture.md

@@ -87,53 +87,6 @@ The automotive application reuses the sources of the `:app` module, simplifying
 
 The Wear OS app communicates with the mobile app to retrieve credentials for the Home Assistant server and other configurations using the [Messaging API](https://developer.android.com/training/wearables/data/messages). It only works with the `full` flavor, as it requires Google Play Services. Once the initial setup is complete, all further communication is handled directly with Home Assistant through the WebSocket and the [webhook](/docs/api/native-app-integration/sending-data) that is created for the app.
 
-## WebView communication architecture
+## Frontend communication
 
-The Android app's WebView acts as a bridge between the Home Assistant frontend and native Android capabilities. This architecture enables [external authentication](docs/frontend/external-authentication.md) and [external bus](/docs/frontend/external-bus) messaging between the frontend and native code.
-
-### Architecture overview
-
-```mermaid
-flowchart TB
-    subgraph WebView
-        JS[Home Assistant Frontend JS]
-    end
-
-    subgraph Bridge
-        JsBridge[FrontendJsBridge]
-    end
-
-    subgraph Handler
-        MsgHandler[FrontendMessageHandler]
-    end
-
-    subgraph Repositories
-        ExternalBusRepo[FrontendExternalBusRepository]
-        SessionMgr[ServerSessionManager]
-    end
-
-    JS -->|"getExternalAuth()"| JsBridge
-    JS -->|"revokeExternalAuth()"| JsBridge
-    JS -->|"externalBus()"| JsBridge
-
-    JsBridge -->|"FrontendJsHandler"| MsgHandler
-
-    MsgHandler -->|"onMessageReceived()"| ExternalBusRepo
-    MsgHandler -->|"getExternalAuth()"| SessionMgr
-    MsgHandler -->|"revokeExternalAuth()"| SessionMgr
-
-    SessionMgr -->|"ExternalAuthResult"| MsgHandler
-    SessionMgr -->|"RevokeAuthResult"| MsgHandler
-    ExternalBusRepo -->|"incomingMessages()"| MsgHandler
-    MsgHandler -->|"send()"| ExternalBusRepo
-
-    ExternalBusRepo -->|"scriptsToEvaluate()"| JS
-    MsgHandler -->|"evaluateScript()"| ExternalBusRepo
-```
-
-### Component responsibilities
-
-- **FrontendJsBridge**: JavaScript interface exposed to the WebView that receives calls from the frontend
-- **FrontendMessageHandler**: Central message handler that routes requests between the frontend and native components
-- **FrontendExternalBusRepository**: Manages bidirectional message passing for the external bus protocol, parsing JSON messages into strongly-typed data structures
-- **ServerSessionManager**: Handles authentication token management for external authentication
+The dashboard is the Home Assistant frontend rendered inside a [WebView](https://developer.android.com/reference/android/webkit/WebView), which the app talks to over [external authentication](/docs/frontend/external-authentication) and the [external bus](/docs/frontend/external-bus). The screen that hosts it — its MVI‑like structure, the JavaScript bridge, the message flow, and the V1/V2 protocols — is documented in [UI architecture (MVI‑like)](/docs/android/ui_architecture#frontend--native-communication).