feat(webui): refine output timeline and model controls (#4108)

* feat(webui): refine output timeline and composer queue

* feat(webui): add provider model picker

* fix(webui): polish model settings and heartbeat checks

* chore: keep heartbeat changes out of webui pr

* refactor(webui): isolate settings routes

* fix(providers): align minimax anthropic test

* fix(providers): keep minimax anthropic base sdk-compatible

* fix(providers): normalize anthropic base urls

webui/src/lib/api.ts

@@ -6,6 +6,7 @@ import type {
   ModelConfigurationCreate,
   ModelConfigurationUpdate,
   NetworkSafetySettingsUpdate,
+  ProviderModelsPayload,
   ProviderSettingsUpdate,
   SettingsPayload,
   SettingsUpdate,
@@ -174,6 +175,19 @@ export async function fetchMcpPresets(
   return request<McpPresetsPayload>(`${base}/api/settings/mcp-presets`, token);
 }
 
+export async function fetchProviderModels(
+  token: string,
+  provider: string,
+  base: string = "",
+): Promise<ProviderModelsPayload> {
+  const query = new URLSearchParams();
+  query.set("provider", provider);
+  return request<ProviderModelsPayload>(
+    `${base}/api/settings/provider-models?${query}`,
+    token,
+  );
+}
+
 export async function runMcpPresetAction(
   token: string,
   action: "enable" | "remove" | "test",