feat(model-server): frontend modèles locaux — badge de statut & CRUD serveurs (#35) et wizard multi-profils OpenCode (#36)

Sprint « Modeles locaux », couche frontend.

#35 :
- F35.1 badge de statut de lancement du serveur local
  (ModelServerLaunchBadge + useAgentsModelServer).
- F35.2 feature model-servers : CRUD (ModelServersPanel / useModelServers /
  gateway modelServer) et ModelServerSelect.

#36 :
- Liste multi-profils OpenCode dans le wizard de premier lancement,
  gateway de clonage (clone_opencode_profile_from_seed).

Tests verts (exécution réelle) : tsc propre, vitest 608/608.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/adapters/modelServer.ts

@@ -0,0 +1,31 @@
+/**
+ * Tauri adapter for {@link ModelServerGateway} (F35). One of the only places that
+ * calls `invoke()`; features reach it exclusively through the port.
+ *
+ * Commands and payload keys are camelCase, matching the backend DTO convention.
+ * The flat `LocalModelServerConfig` wire shape is the DTO frozen by Architect —
+ * no nesting.
+ */
+
+import { invoke } from "@tauri-apps/api/core";
+
+import type { LocalModelServerConfig } from "@/domain";
+import type { ModelServerGateway } from "@/ports";
+
+export class TauriModelServerGateway implements ModelServerGateway {
+  listModelServers(): Promise<LocalModelServerConfig[]> {
+    return invoke<LocalModelServerConfig[]>("list_model_servers");
+  }
+
+  saveModelServer(
+    config: LocalModelServerConfig,
+  ): Promise<LocalModelServerConfig> {
+    return invoke<LocalModelServerConfig>("save_model_server", {
+      request: { config },
+    });
+  }
+
+  async deleteModelServer(serverId: string): Promise<void> {
+    await invoke("delete_model_server", { serverId });
+  }
+}