Move the action from Deno to Node.js and Vite+

src/agents.ts

@@ -0,0 +1,30 @@
+// Dispatches one attempt to the agent CLI its profile names.
+import { runClaude } from "./agent-claude.ts";
+import { runCodex } from "./agent-codex.ts";
+import { runOpenCode } from "./agent-opencode.ts";
+import { codexAuthentication } from "./auth.ts";
+import type { CodexAuthentication } from "./auth.ts";
+import type { RuntimeProfile } from "./runtime.ts";
+
+export interface AgentAnswer {
+  body?: string;
+  resultPath?: string;
+}
+
+// Runs the selected agent; Codex leaves its answer in a file, the others return it.
+export async function runAgent(
+  profile: RuntimeProfile,
+  token: string | undefined,
+  prompt: string,
+  authentication: CodexAuthentication | null,
+): Promise<AgentAnswer> {
+  if (profile.type === "claude") {
+    return { body: await runClaude(profile, token ?? "", prompt) };
+  }
+  if (profile.type === "codex") {
+    return {
+      resultPath: await runCodex(profile, prompt, authentication ?? codexAuthentication(token)),
+    };
+  }
+  return { body: await runOpenCode(profile, token ?? "", prompt) };
+}