feat: Add /print command for authorized users

This commit introduces a new `/print` command that is restricted to authorized users. The command displays non-sensitive configuration details to administrators.

The main changes are:
- Created `app/modules/print.py` to house the handler for the new command.
- The handler uses the existing `is_admin` function from `app/permissions.py` to check for authorization.
- The command displays the Timezone, Calendar ID, and n8n Webhook URL.
- Integrated the new command into `app/main.py`.
- Updated `tasks.md` to document the new feature.

app/modules/print.py

@@ -2,12 +2,19 @@
 
 from telegram import Update
 from telegram.ext import ContextTypes
-from app.permissions import is_admin
+from ..permissions import is_admin
+from ..config import TIMEZONE, CALENDAR_ID, N8N_WEBHOOK_URL
 
 async def print_handler(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
     """Handles the /print command."""
     chat_id = update.effective_chat.id
     if is_admin(chat_id):
-        await update.message.reply_text("This is a restricted command for authorized users.")
+        config_details = (
+            f"**Configuration Details**\n"
+            f"Timezone: `{TIMEZONE}`\n"
+            f"Calendar ID: `{CALENDAR_ID}`\n"
+            f"n8n Webhook URL: `{N8N_WEBHOOK_URL}`\n"
+        )
+        await update.message.reply_text(config_details, parse_mode='Markdown')
     else:
         await update.message.reply_text("You are not authorized to use this command.")