feat(#480): pass refresh=true on Models pull-to-refresh to re-probe custom providers (#481)

* feat(#480): pass refresh=true on Models pull-to-refresh to re-probe custom providers

* test(#480): assert refresh flag propagation for default vs pull-to-refresh loads

* fix(#480): capture refresh arg via slot instead of brittle coVerify in propagation test

---------

Co-authored-by: ronia <ronia@m57>

app/src/main/java/com/m57/hermescontrol/ui/model/ModelScreen.kt

@@ -101,7 +101,7 @@ fun ModelScreen(
         title = { Text(stringResource(R.string.screen_models)) },
         navigationIcon = onOpenDrawer?.let { NavIcon.Menu(it) },
         isRefreshing = state.isLoading,
-        onRefresh = { viewModel.loadAll() },
+        onRefresh = { viewModel.loadAll(refresh = true) },
     ) { paddingValues ->
         when {
             state.isLoading && state.providers.isEmpty() -> {

app/src/main/java/com/m57/hermescontrol/ui/model/ModelViewModel.kt

@@ -76,12 +76,12 @@ class ModelViewModel :
         _uiState.update { it.copy(pinnedModels = AuthManager.getPinnedModels()) }
     }
 
-    fun loadAll() {
+    fun loadAll(refresh: Boolean = false) {
         _uiState.update { it.copy(isLoading = true, errorMessage = null) }
         viewModelScope.launch {
             val optionsDeferred =
                 async(Dispatchers.IO) {
-                    safeApiCall { ApiClient.hermesApi.getModelOptions() }
+                    safeApiCall { ApiClient.hermesApi.getModelOptions(refresh = refresh) }
                 }
             val activeProfileDeferred =
                 async(Dispatchers.IO) {