refactor(healthchat): move the session hooks onto UserHooks

ElementX/Sources/AppHooks/HealthChat/HealthChatSettingsScreenHook.swift

@@ -14,28 +14,19 @@ import SwiftUI
 final class HealthChatSettingsScreenHook: SettingsScreenHookProtocol {
     // Owned here rather than by the section: the settings screen asks for the section on
     // every body pass. Nothing is fetched until the screen appears and asks for a refresh.
-    private var statusLoader: HealthChatAccountStatusLoader?
+    private let statusLoader: HealthChatAccountStatusLoader
     
-    // Constructed during hook registration, before the main actor is reachable.
-    nonisolated init() { }
-    
-    func configure(with userSession: UserSessionProtocol?) async {
-        statusLoader = userSession.map {
-            let apiService = HealthChatAPIService(tokenProvider: HealthChatOpenIDTokenProvider(clientProxy: $0.clientProxy))
-            return HealthChatAccountStatusLoader(apiService: apiService)
-        }
+    init(statusLoader: HealthChatAccountStatusLoader) {
+        self.statusLoader = statusLoader
     }
     
     func accountStatusSection(completeProfileAction: @escaping () -> Void) -> AnyView? {
-        guard let statusLoader else {
-            return nil
-        }
-        return AnyView(HealthChatAccountStatusSection(loader: statusLoader,
-                                                      completeProfileAction: completeProfileAction))
+        AnyView(HealthChatAccountStatusSection(loader: statusLoader,
+                                               completeProfileAction: completeProfileAction))
     }
     
     func refreshAccountStatus() {
-        statusLoader?.load()
+        statusLoader.load()
     }
 }
 #endif