Give every user their own bot face

A bot's face and status line live in bot_user_faces, one row per bot and
user, set by jobs for the user whose conversation they're in. Needs-you
and working only show to that user; every bot read overlays the viewer's
face (botFaceSql) and pushes go to the user a face change is for.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/dict/bot-queue-dict.ts

@@ -45,6 +45,11 @@ export const BotReplyJobTitle = "Thinking";
  */
 export const BotTaskStatusLine = "Working on a task";
 
+/**
+ * The status line while a bot waits on the user its job is for.
+ */
+export const BotNeedsYouStatusLine = "Waiting on you";
+
 /**
  * The bot's status line while its job waits for a rate-limited model.
  */