🤖 codex: fix block reply ordering (#503)

What: serialize block reply sends, make typing non-blocking, add timeout fallback + abort-aware routing, and add regression tests.
Why: prevent out-of-order streamed blocks while keeping final fallback on timeouts.
Tests: ./node_modules/.bin/vitest run src/auto-reply/reply.block-streaming.test.ts src/auto-reply/reply/route-reply.test.ts
Tests: corepack pnpm lint && corepack pnpm build (pass). corepack pnpm test (ran locally; failure observed during run).

Co-authored-by: Josh Palmer <joshp123@users.noreply.github.com>

src/auto-reply/reply/route-reply.ts

@@ -30,6 +30,8 @@ export type RouteReplyParams = {
   threadId?: number;
   /** Config for provider-specific settings. */
   cfg: ClawdbotConfig;
+  /** Optional abort signal for cooperative cancellation. */
+  abortSignal?: AbortSignal;
 };
 
 export type RouteReplyResult = {
@@ -52,7 +54,7 @@ export type RouteReplyResult = {
 export async function routeReply(
   params: RouteReplyParams,
 ): Promise<RouteReplyResult> {
-  const { payload, channel, to, accountId, threadId } = params;
+  const { payload, channel, to, accountId, threadId, abortSignal } = params;
 
   // Debug: `pnpm test src/auto-reply/reply/route-reply.test.ts`
   const text = payload.text ?? "";
@@ -72,6 +74,9 @@ export async function routeReply(
     text: string;
     mediaUrl?: string;
   }): Promise<RouteReplyResult> => {
+    if (abortSignal?.aborted) {
+      return { ok: false, error: "Reply routing aborted" };
+    }
     const { text, mediaUrl } = params;
     switch (channel) {
       case "telegram": {
@@ -148,12 +153,18 @@ export async function routeReply(
   };
 
   try {
+    if (abortSignal?.aborted) {
+      return { ok: false, error: "Reply routing aborted" };
+    }
     if (mediaUrls.length === 0) {
       return await sendOne({ text });
     }
 
     let last: RouteReplyResult | undefined;
     for (let i = 0; i < mediaUrls.length; i++) {
+      if (abortSignal?.aborted) {
+        return { ok: false, error: "Reply routing aborted" };
+      }
       const mediaUrl = mediaUrls[i];
       const caption = i === 0 ? text : "";
       last = await sendOne({ text: caption, mediaUrl });