feat(S-102): Test-drive and implement --timeout flag, config layering, and default in

tools/ai-cli-dispatch/src/cli.ts

@@ -21,7 +21,7 @@ export interface CliDeps {
     prompt: string,
     config?: { client?: ClientName; defaultClient?: ClientName }
   ) => ClientName | null;
-  resolveConfig?: () => { paths: Partial<Record<ClientName, string>>; defaultClient?: ClientName };
+  resolveConfig?: () => { paths: Partial<Record<ClientName, string>>; defaultClient?: ClientName; timeout?: number };
   stdoutWrite?: (chunk: string) => void;
   stderrWrite?: (chunk: string) => void;
 }
@@ -54,7 +54,7 @@ export async function main(
     rawArgs[0]?.includes("cli.ts") ? rawArgs.slice(1) : rawArgs;
 
   const args = minimist(parseArgs, {
-    string: ["client", "prompt"],
+    string: ["client", "prompt", "timeout"],
     boolean: ["json", "text", "help", "debug"],
     alias: { h: "help" },
   });
@@ -114,8 +114,12 @@ export async function main(
       return 1;
     }
 
+    const config = resolveConfig();
+    const timeoutMs =
+      typeof args.timeout === "string" ? Number(args.timeout) : config.timeout;
+
     try {
-      const result = await executePrompt(client, prompt);
+      const result = await executePrompt(client, prompt, { timeoutMs });
       if (jsonMode) {
         console.log(JSON.stringify(result, null, 2));
       } else {
@@ -167,8 +171,11 @@ export async function main(
       return 1;
     }
 
+    const timeoutMs =
+      typeof args.timeout === "string" ? Number(args.timeout) : config.timeout;
+
     try {
-      const result = await executePrompt(client, prompt);
+      const result = await executePrompt(client, prompt, { timeoutMs });
       if (jsonMode) {
         console.log(JSON.stringify(result, null, 2));
       } else {