refactor(auto-reply): split reply pipeline

src/auto-reply/reply/reply-inline.ts

@@ -0,0 +1,37 @@
+const INLINE_SIMPLE_COMMAND_ALIASES = new Map<string, string>([
+  ["/help", "/help"],
+  ["/commands", "/commands"],
+  ["/whoami", "/whoami"],
+  ["/id", "/whoami"],
+]);
+const INLINE_SIMPLE_COMMAND_RE =
+  /(?:^|\s)\/(help|commands|whoami|id)(?=$|\s|:)/i;
+
+const INLINE_STATUS_RE = /(?:^|\s)\/(?:status|usage)(?=$|\s|:)(?:\s*:\s*)?/gi;
+
+export function extractInlineSimpleCommand(body?: string): {
+  command: string;
+  cleaned: string;
+} | null {
+  if (!body) return null;
+  const match = body.match(INLINE_SIMPLE_COMMAND_RE);
+  if (!match || match.index === undefined) return null;
+  const alias = `/${match[1].toLowerCase()}`;
+  const command = INLINE_SIMPLE_COMMAND_ALIASES.get(alias);
+  if (!command) return null;
+  const cleaned = body.replace(match[0], " ").replace(/\s+/g, " ").trim();
+  return { command, cleaned };
+}
+
+export function stripInlineStatus(body: string): {
+  cleaned: string;
+  didStrip: boolean;
+} {
+  const trimmed = body.trim();
+  if (!trimmed) return { cleaned: "", didStrip: false };
+  const cleaned = trimmed
+    .replace(INLINE_STATUS_RE, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+  return { cleaned, didStrip: cleaned !== trimmed };
+}