feat: enhance duty information handling with contact details and current duty view

- Added `bot_username` to settings for dynamic retrieval of the bot's username.
- Implemented `_resolve_bot_username` function to fetch the bot's username if not set, improving user experience in group chats.
- Updated `DutyWithUser` schema to include optional `phone` and `username` fields for enhanced duty information.
- Enhanced API responses to include contact details for users, ensuring better communication.
- Introduced a new current duty view in the web app, displaying active duty information along with contact options.
- Updated CSS styles for better presentation of contact information in duty cards.
- Added unit tests to verify the inclusion of contact details in API responses and the functionality of the current duty view.

webapp/js/main.js

@@ -25,6 +25,7 @@ import {
 import { initDayDetail } from "./dayDetail.js";
 import { initHints } from "./hints.js";
 import { renderDutyList } from "./dutyList.js";
+import { showCurrentDutyView, hideCurrentDutyView } from "./currentDuty.js";
 import {
   firstDayOfMonth,
   lastDayOfMonth,
@@ -262,6 +263,18 @@ runWhenReady(() => {
     bindStickyScrollShadow();
     initDayDetail();
     initHints();
-    loadMonth();
+    const startParam =
+      (window.Telegram && window.Telegram.WebApp && window.Telegram.WebApp.initDataUnsafe &&
+        window.Telegram.WebApp.initDataUnsafe.start_param) ||
+      "";
+    if (startParam === "duty") {
+      state.lang = getLang();
+      showCurrentDutyView(() => {
+        hideCurrentDutyView();
+        loadMonth();
+      });
+    } else {
+      loadMonth();
+    }
   });
 });