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/features/agents/index.ts

@@ -5,7 +5,9 @@
 export { AgentsPanel } from "./AgentsPanel";
 export type { AgentsPanelProps } from "./AgentsPanel";
 export { useAgents } from "./useAgents";
-export type { AgentsViewModel } from "./useAgents";
+export type { AgentsViewModel, AgentLaunchFailure } from "./useAgents";
+export { ModelServerLaunchBadge } from "./ModelServerLaunchBadge";
+export type { ModelServerLaunchBadgeProps } from "./ModelServerLaunchBadge";
 export { ResumeProjectPanel } from "./ResumeProjectPanel";
 export type { ResumeProjectPanelProps } from "./ResumeProjectPanel";
 export { useResumeProject } from "./useResumeProject";