chore(lint): burn down remaining warnings to zero

src/channels/discord/adapter.test.ts

@@ -15,7 +15,10 @@ function createMockClient() {
     user: null as { id: string; tag: string } | null,
     on: vi.fn((event: string, handler: (...args: unknown[]) => void) => {
       if (!handlers.has(event)) {handlers.set(event, []);}
-      handlers.get(event)!.push(handler);
+      const eventHandlers = handlers.get(event);
+      if (eventHandlers) {
+        eventHandlers.push(handler);
+      }
     }),
     login: vi.fn(async (_token: string) => {
       // Set user info after login

src/channels/matrix/adapter.test.ts

@@ -87,7 +87,7 @@ describe('MatrixAdapter', () => {
 
   it('send delivers a message via PUT', async () => {
     let syncStarted = false;
-    mockFetch.mockImplementation(async (url: string, init?: any) => {
+    mockFetch.mockImplementation(async (url: string, init?: RequestInit) => {
       if (url.endsWith('/_matrix/client/v3/account/whoami')) {
         return jsonResponse({ user_id: '@flynn:example.org' });
       }
@@ -99,7 +99,7 @@ describe('MatrixAdapter', () => {
         return new Promise<Response>(() => {});
       }
       if (init?.method === 'PUT' && url.includes('/send/m.room.message/')) {
-        const body = JSON.parse(init.body);
+        const body = JSON.parse(String(init?.body ?? '{}'));
         expect(body.msgtype).toBe('m.text');
         expect(body.body).toBe('Hello there');
         return jsonResponse({ event_id: '$sent1' });

src/channels/matrix/adapter.ts

@@ -201,8 +201,10 @@ export class MatrixAdapter implements ChannelAdapter {
           return;
         }
 
-        const err = error as any;
-        if (err && typeof err === 'object' && err.name === 'AbortError') {
+        const errName = error && typeof error === 'object' && 'name' in error
+          ? String((error as { name?: unknown }).name)
+          : '';
+        if (errName === 'AbortError') {
           return;
         }
 

src/channels/pairing.test.ts

@@ -121,7 +121,7 @@ describe('PairingManager', () => {
 
   it('listPendingCodes returns only non-expired codes', () => {
     vi.useFakeTimers();
-    const code1 = manager.generateCode('first');
+    manager.generateCode('first');
 
     // Advance time so the first code is almost expired
     vi.advanceTimersByTime(200_000);

src/channels/slack/adapter.ts

@@ -226,7 +226,11 @@ export class SlackAdapter implements ChannelAdapter {
     }
 
     try {
-      const result = await this.app!.client.users.info({ user: userId });
+      const app = this.app;
+      if (!app) {
+        return userId;
+      }
+      const result = await app.client.users.info({ user: userId });
       const name = result.user?.real_name || result.user?.name || userId;
       this.userNameCache.set(userId, { name, expiresAt: now + this.userNameCacheTtlMs });
       if (this.userNameCache.size > this.userNameCacheMaxEntries) {

src/channels/telegram/adapter.ts

@@ -2,7 +2,6 @@ import { Bot, InputFile } from 'grammy';
 
 import type { HookEngine } from '../../hooks/index.js';
 import type {
-  Attachment,
   InboundMessage,
   OutboundMessage,
   OutboundAttachment,
@@ -438,7 +437,8 @@ export class TelegramAdapter implements ChannelAdapter {
 
   /** Send an outbound message, automatically chunking if it exceeds Telegram's limit. */
   async send(peerId: string, message: OutboundMessage): Promise<void> {
-    if (!this.bot) {throw new Error('Telegram adapter not connected');}
+    const bot = this.bot;
+    if (!bot) {throw new Error('Telegram adapter not connected');}
 
     const chatId = Number(peerId);
     const text = message.text ?? '';
@@ -459,7 +459,7 @@ export class TelegramAdapter implements ChannelAdapter {
       // is strict and can fail on unescaped characters. If Telegram rejects the
       // message, retry once without parse_mode so users still get the content.
       try {
-        await this.bot!.api.sendMessage(chatId, chunk, { parse_mode: 'Markdown' });
+        await bot.api.sendMessage(chatId, chunk, { parse_mode: 'Markdown' });
       } catch (error) {
         const description = error && typeof error === 'object' && 'description' in error
           ? String((error as { description?: unknown }).description)
@@ -472,7 +472,7 @@ export class TelegramAdapter implements ChannelAdapter {
           throw error;
         }
 
-        await this.bot!.api.sendMessage(chatId, chunk);
+        await bot.api.sendMessage(chatId, chunk);
       }
     };