feat: human-readable date format with timezone awareness

Add format_due_date() for human-readable dates like "4 April 2026".
Update cmd_add to use timezone-aware date formatting.

Fixes #54

apps/telegram-bot/bot.py

@@ -47,7 +47,6 @@ def build_app() -> Application:
     app.add_handler(CommandHandler("show", cmd_show))
     app.add_handler(CommandHandler("timezone", cmd_timezone))
     app.add_handler(CommandHandler("admin", cmd_admin))
-    app.add_handler(CommandHandler("admin", cmd_admin))
 
     app.add_handler(MessageHandler(filters.COMMAND, cmd_help))
 

apps/telegram-bot/commands.py

@@ -1,6 +1,8 @@
 """Telegram command handlers for JIGAIDO - Thin wrappers around core services."""
 
 import time
+from datetime import datetime, timezone
+from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
 from functools import wraps
 from typing import Optional
 from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
@@ -20,6 +22,36 @@ TRACKING_SERVICE = TrackingService(TRACKING_STORAGE, ROOM_STORAGE)
 TELEGRAM_BOT_USERNAME = "your_bot_username"
 
 
+def format_due_date(due_date_ts: int | None, timezone_str: str) -> str:
+    """Format due date as human-readable with timezone.
+
+    Examples:
+        No due date:     (none shown)
+        Date only:       4 April 2026
+        Date + time:     4 April 2026 14:30
+        With timezone:   4 April 2026 14:30 (Asia/Jakarta)
+    """
+    if not due_date_ts:
+        return ""
+
+    try:
+        tz = ZoneInfo(timezone_str)
+    except (KeyError, ZoneInfoNotFoundError):
+        tz = ZoneInfo("UTC")
+
+    dt = datetime.fromtimestamp(due_date_ts, tz=tz)
+
+    date_str = dt.strftime("%-d %B %Y")
+
+    if dt.hour != 0 or dt.minute != 0:
+        date_str += f" {dt.strftime('%H:%M')}"
+        date_str += f" ({timezone_str})"
+
+    return date_str
+
+
+
+
 def extract_args(text: str) -> list[str]:
     if not text:
         return []
@@ -239,7 +271,8 @@ async def cmd_add(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
 
     due_str = ""
     if due_date_ts:
-        due_str = f" | Due: {time.strftime('%Y-%m-%d', time.localtime(due_date_ts))}"
+        timezone_str = BOUNTY_SERVICE.get_timezone(room_id)
+        due_str = f" | Due: {format_due_date(due_date_ts, timezone_str)}"
     await update.message.reply_text(
         f"✅ Bounty added (#{bounty.id}){due_str}",
         disable_web_page_preview=True,
@@ -392,101 +425,6 @@ async def cmd_untrack(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
         await update.message.reply_text("Not tracking bounty #{bounty_id}.")
 
 
-async def cmd_admin(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
-    args = extract_args(update.message.text)
-    if not args:
-        await update.message.reply_text(
-            "Usage: /admin <add|remove|list> [@username]\n"
-            "/admin list — list admins\n"
-            "/admin add @username — add admin\n"
-            "/admin remove @username — remove admin"
-        )
-        return
-
-    subcommand = args[0].lower()
-    username = args[1] if len(args) > 1 else None
-
-    requesting_user_id = get_user_id(update)
-    room_id = get_room_id(update)
-
-    if subcommand == "list":
-        admins = BOUNTY_SERVICE.list_admins(room_id)
-        if not admins:
-            await update.message.reply_text("No admins in this room.")
-            return
-        admin_mentions = " ".join(f"admin_id:{uid}" for uid in admins)
-        await update.message.reply_text(f"Admins: {admin_mentions}")
-        return
-
-    if subcommand == "remove":
-        if not username:
-            await update.message.reply_text("Usage: /admin remove @username")
-            return
-
-        if not username.startswith("@"):
-            await update.message.reply_text(
-                f"⛔ {username} is not a valid username (must start with @)."
-            )
-            return
-
-        target_username = username[1:]
-        try:
-            chat = await ctx.bot.get_chat(target_username)
-            target_user_id = chat.id
-        except Exception:
-            await update.message.reply_text(
-                f"⛔ Could not find user @{target_username}."
-            )
-            return
-
-        try:
-            BOUNTY_SERVICE.remove_admin(room_id, target_user_id, requesting_user_id)
-            await update.message.reply_text(
-                f"✅ @{target_username} is no longer an admin."
-            )
-        except PermissionError as e:
-            await update.message.reply_text(f"⛔ {e}")
-        except ValueError:
-            await update.message.reply_text(f"⛔ @{target_username} is not an admin.")
-        return
-
-    if subcommand == "add":
-        if not username:
-            await update.message.reply_text("Usage: /admin add @username")
-            return
-
-        if not username.startswith("@"):
-            await update.message.reply_text(
-                f"⛔ {username} is not a valid username (must start with @)."
-            )
-            return
-
-        target_username = username[1:]
-        try:
-            chat = await ctx.bot.get_chat(target_username)
-            target_user_id = chat.id
-        except Exception:
-            await update.message.reply_text(
-                f"⛔ Could not find user @{target_username}."
-            )
-            return
-
-        try:
-            BOUNTY_SERVICE.add_admin(room_id, target_user_id, requesting_user_id)
-            await update.message.reply_text(f"✅ @{target_username} is now an admin.")
-        except PermissionError as e:
-            await update.message.reply_text(f"⛔ {e}")
-        except ValueError:
-            await update.message.reply_text(
-                f"⛔ @{target_username} is already an admin."
-            )
-        return
-
-    await update.message.reply_text(
-        "Unknown subcommand. Use: /admin <add|remove|list> [@username]"
-    )
-
-
 async def cmd_start(update: Update, ctx: ContextTypes.DEFAULT_TYPE) -> None:
     if is_group(update):
         await update.message.reply_text(