feat: add multi-ID delete support with per-ID results

- Add delete_bounties method to BountyService that returns individual
  results per bounty ID (deleted, not_found, permission_denied)
- Update cmd_delete to accept multiple IDs and show per-ID messages
- Add tests for delete_bounties

Example output:
/delete 1 2 3
✅ Bounty #1 deleted.
✅ Bounty #2 deleted.
⛔ Bounty #3 not found.

Fixes #47

apps/telegram-bot/commands.py

@@ -210,32 +210,34 @@ cmd_edit = cmd_update
 async def cmd_delete(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
     args = extract_args(update.message.text)
     if not args:
-        await update.message.reply_text("Usage: /delete <bounty_id>")
+        await update.message.reply_text("Usage: /delete <bounty_id> [bounty_id ...]")
         return
 
     try:
-        bounty_id = int(args[0])
+        bounty_ids = [int(arg) for arg in args]
     except ValueError:
-        await update.message.reply_text("Invalid bounty ID.")
+        await update.message.reply_text("Invalid bounty ID(s).")
         return
 
     user_id = get_user_id(update)
     room_id = get_room_id(update)
 
-    try:
-        success = BOUNTY_SERVICE.delete_bounty(
-            room_id=room_id,
-            bounty_id=bounty_id,
-            user_id=user_id,
-        )
-    except PermissionError as e:
-        await update.message.reply_text(f"⛔ {e}")
-        return
+    results = BOUNTY_SERVICE.delete_bounties(
+        room_id=room_id,
+        bounty_ids=bounty_ids,
+        user_id=user_id,
+    )
 
-    if success:
-        await update.message.reply_text(f"✅ Bounty #{bounty_id} deleted.")
-    else:
-        await update.message.reply_text("Bounty not found.")
+    lines = []
+    for bounty_id, result in results.items():
+        if result == "deleted":
+            lines.append(f"✅ Bounty #{bounty_id} deleted.")
+        elif result == "not_found":
+            lines.append(f"⛔ Bounty #{bounty_id} not found.")
+        elif result == "permission_denied":
+            lines.append(f"⛔ Bounty #{bounty_id} - only admins can delete.")
+
+    await update.message.reply_text("\n".join(lines))
 
 
 async def cmd_track(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None: