fix(credentials): address review feedback

- wakeContainer now never throws — returns Promise<boolean>, catches
  internally. Closes the regression risk for the 5 awaited callers in
  agent-to-agent, interactive, and approvals/response-handler that the
  previous version left unwrapped. Router uses the boolean to stop the
  typing indicator on transient failure; host-sweep just awaits.
- Tighten AUTH_REQUIRED_RE: anchor to start-of-string with the specific
  `·` (U+00B7) separator the CLI uses, so an agent that quotes the
  banner mid-sentence in a normal reply doesn't trip the classifier.
- Log a one-line note from writeAuthRequiredMessage so substitutions
  are visible when debugging "user got the credentials message but I
  don't see why."
- Add unit tests for ClaudeProvider.isAuthRequired covering both banner
  variants, trailing content, mid-sentence quoting, leading-prose
  quoting, alternate separators, and unrelated text.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/router.ts

@@ -450,15 +450,11 @@ async function deliverToAgent(
     startTypingRefresh(session.id, session.agent_group_id, event.channelType, event.platformId, event.threadId);
     const freshSession = getSession(session.id);
     if (freshSession) {
-      try {
-        await wakeContainer(freshSession);
-      } catch (err) {
-        // Transient spawn failure (e.g. OneCLI gateway down). The inbound
-        // row is already persisted — host-sweep will retry the wake on its
-        // next tick. Don't bubble out of the channel adapter.
-        log.warn('wakeContainer failed — host-sweep will retry', { sessionId: freshSession.id, err });
-        stopTypingRefresh(freshSession.id);
-      }
+      const woke = await wakeContainer(freshSession);
+      // wakeContainer never throws — it returns false on transient spawn
+      // failure (host-sweep retries). Stop the typing indicator we just
+      // started so it doesn't leak; the inbound row stays pending.
+      if (!woke) stopTypingRefresh(freshSession.id);
     }
   }
 }