feat: show AI progress and configure prompt directory

app/commands/builtins.py

@@ -54,11 +54,19 @@ def _split_transcript(value: str, *, limit: int = 4000) -> list[str]:
     return chunks
 
 
-async def _dislike(message: Any) -> None:
+async def _set_reaction(message: Any, emoji: str | None) -> None:
     try:
-        await message.react("👎")
+        await message.react(emoji)
     except Exception:
-        log.exception("Could not add a dislike reaction to message %s", getattr(message, "id", None))
+        log.exception(
+            "Could not set reaction %r on message %s",
+            emoji,
+            getattr(message, "id", None),
+        )
+
+
+async def _dislike(message: Any) -> None:
+    await _set_reaction(message, "👎")
 
 
 def _transcribable_media(message: Any) -> Any | None:
@@ -416,6 +424,7 @@ async def echo(ctx: "CommandContext") -> None:
     category="shared",
 ).shared()
 async def ai(ctx: "CommandContext") -> None:
+    await _set_reaction(ctx.message, "🤔")
     failed = False
     try:
         invocation = parse_agent_invocation(ctx.args, ctx.manager.config.ai)
@@ -436,6 +445,8 @@ async def ai(ctx: "CommandContext") -> None:
 
     if failed:
         await _dislike(ctx.message)
+    else:
+        await _set_reaction(ctx.message, None)
 
 
 @command_registry.command(