feat(tgbot): route admin notifications to a forum topic (#6879)

Admins who run the bot in a forum supergroup got every notification in the
General topic. An admin chat ID may now carry a topic, chatId:topicId, and the
bot's admin messages and reports go to that topic. Repeated chats collapse into
one entry and a second, different topic for the same chat is rejected, in the
panel and in the docs setup helper alike. The chat ID hint in every locale and
the English, Persian, Russian and Chinese guides describe the form.

docs/lib/xray/telegram.test.ts

@@ -32,18 +32,47 @@ describe('validateBotToken', () => {
 
 describe('parseAdminIds', () => {
   it('splits a comma list into integer ids', () => {
-    expect(parseAdminIds('111, 222')).toEqual({ ids: [111, 222], invalid: [] });
+    expect(parseAdminIds('111, 222')).toEqual({
+      ids: [111, 222],
+      entries: ['111', '222'],
+      invalid: [],
+    });
   });
 
   it('accepts negative group ids and captures invalid entries', () => {
     expect(parseAdminIds('-1001234567, abc, 42')).toEqual({
       ids: [-1001234567, 42],
+      entries: ['-1001234567', '42'],
       invalid: ['abc'],
     });
   });
 
+  it('drops the General topic suffix, since the Bot API rejects thread id 1', () => {
+    expect(parseAdminIds('-1001234567:1')).toEqual({
+      ids: [-1001234567],
+      entries: ['-1001234567'],
+      invalid: [],
+    });
+  });
+
+  it('rejects a second topic for the same chat, as the panel does', () => {
+    expect(parseAdminIds('-1001:7, -1001:1, -1001:8')).toEqual({
+      ids: [-1001],
+      entries: ['-1001:7'],
+      invalid: ['-1001:8'],
+    });
+  });
+
+  it('keeps a forum topic suffix and rejects a malformed one', () => {
+    expect(parseAdminIds('-1001234567:42, 111:0, 222:x')).toEqual({
+      ids: [-1001234567],
+      entries: ['-1001234567:42'],
+      invalid: ['111:0', '222:x'],
+    });
+  });
+
   it('returns empty for blank input', () => {
-    expect(parseAdminIds('  ')).toEqual({ ids: [], invalid: [] });
+    expect(parseAdminIds('  ')).toEqual({ ids: [], entries: [], invalid: [] });
   });
 });
 
@@ -103,4 +132,13 @@ describe('buildBotConfigSummary', () => {
     expect(s.tgBotChatId).toBe('111,222');
     expect(s.tgRunTime).toBe('@daily');
   });
+
+  it('keeps forum topic suffixes in the chat id setting', () => {
+    const s = buildBotConfigSummary({
+      token: VALID_TOKEN,
+      adminIds: '111, -1001234567 : 42',
+      runTime: '@daily',
+    });
+    expect(s.tgBotChatId).toBe('111,-1001234567:42');
+  });
 });