perf: speed up model/agent readiness on the initial draft

Load startup config under the owning project's directory key (resolving from a
worktree directory when needed) so the auto-opened draft, which activates the
project, finds a ready providers/agents snapshot instead of triggering a second
load. Also dedupe app.agents: listAgents now takes the directory directly and
shares an in-flight request, so the config store and agents store no longer
issue duplicate agent fetches at startup.

packages/ui/src/stores/useAgentsStore.ts

@@ -245,8 +245,10 @@ export const useAgentsStore = create<AgentsStore>()(
               try {
                 const queryParams = configDirectory ? `?directory=${encodeURIComponent(configDirectory)}` : '';
 
-                // Ensure we list agents using the correct project context
-                const agents = await opencodeClient.withDirectory(configDirectory, () => opencodeClient.listAgents());
+                // Ensure we list agents using the correct project context. Pass the
+                // directory directly so this shares the in-flight request with the config
+                // store instead of issuing a duplicate agents fetch at startup.
+                const agents = await opencodeClient.listAgents(configDirectory);
 
                 const agentsWithScope = await Promise.all(
                   agents.map(async (agent) => {