feat(profiles): first-class profile switching — phase 0 baseline port (#820)

* feat(profiles): make profile switching actually scope the app (issue #781 follow-up)

* fix(profiles): inherit connection token when switching to same-dashboard profile (issue #781 follow-up)

* fix(chat): reset open session on profile switch + prefill login profile (desktop parity)

* fix(ws): inject profile into profile-scoped RPC params so chat follows the selected profile

* test(chat): de-poison SlashCommandDispatchRpcTest (drop static Dispatchers mock)

mockkStatic(Dispatchers::class) + a stubbed Dispatchers.IO bleeds JVM-wide and
breaks later classes in suite order (CI 2026-08-06: COMMAND_DISPATCH captures
cross-wired → ComparisonFailure on lower stack PRs). ChatViewModel gains an
injected ioDispatcher (38 sites); the slash test constructs the VM with the
test dispatcher so the IO stub is unnecessary.

---------

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/ui/profiles/ProfilesViewModel.kt

@@ -19,6 +19,7 @@ import com.m57.hermescontrol.data.model.UpdateProfileSoulRequest
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.NetworkResult
 import com.m57.hermescontrol.data.remote.safeApiCall
+import com.m57.hermescontrol.data.ws.HermesWsClient
 import com.m57.hermescontrol.ui.common.ToastHost
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
@@ -111,6 +112,24 @@ class ProfilesViewModel :
                 }
             when (result) {
                 is NetworkResult.Success -> {
+                    // Persist the LOCAL selection so ProfileScopeInterceptor scopes
+                    // every management REST call (?profile=) to the new profile,
+                    // and re-home the WebSocket so the live gateway follows too
+                    // (mirrors desktop's re-home-on-switch).
+                    //
+                    // Token inheritance: the app keys tokens per profile
+                    // (token_<profileId>) because connections can point at
+                    // different dashboards, but profiles listed on THIS screen
+                    // are all served by the SAME connected dashboard — so a
+                    // profile created/selected in-app inherits the current
+                    // connection's token instead of forcing a re-login.
+                    val currentToken = AuthManager.getToken()
+                    if (currentToken != null && AuthManager.getProfileToken(name) == null) {
+                        AuthManager.setProfileToken(name, currentToken)
+                    }
+                    AuthManager.setSelectedProfileId(name)
+                    HermesWsClient.disconnect()
+                    HermesWsClient.connect()
                     _uiState.update { it.copy(toastMessage = "Switched to profile $name") }
                     loadProfiles()
                 }