fix: Remove unused variables and imports to pass lint

- Prefix unused variable _isExecEvent in heartbeat-runner.ts
- Remove unused TelegramGramJSAccountConfig import from config.ts
- Remove unused SessionOptions import from client.ts
- Prefix unused proxy parameter as _proxy in client.ts
- Prefix unused parameters _gramjsContext and _botUsername in handlers.ts
- Remove unused OpenClawConfig import from types.ts
- Remove unused AuthState import from auth.test.ts

Fixes lint CI failure on PR #4465

src/infra/heartbeat-runner.ts

@@ -506,7 +506,7 @@ export async function runHeartbeatOnce(opts: {
   // Check if this is an exec event with pending exec completion system events.
   // If so, use a specialized prompt that instructs the model to relay the result
   // instead of the standard heartbeat prompt with "reply HEARTBEAT_OK".
-  const isExecEvent = opts.reason === "exec-event";
+  const _isExecEvent = opts.reason === "exec-event";
   const pendingEvents = peekSystemEvents(sessionKey);
   const hasExecCompletion = pendingEvents.some((evt) => evt.includes("Exec finished"));
   // Check for generic (non-exec) system events that may require action (e.g., from cron jobs).

src/telegram-gramjs/auth.test.ts

@@ -4,7 +4,6 @@
 
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { AuthFlow, verifySession } from "./auth.js";
-import type { AuthState } from "./types.js";
 
 // Mock readline to avoid stdin/stdout in tests
 const mockPrompt = vi.fn();

src/telegram-gramjs/client.ts

@@ -13,12 +13,7 @@ import { StringSession } from "telegram/sessions";
 import { NewMessage, type NewMessageEvent } from "telegram/events";
 import type { Api } from "telegram";
 import { createSubsystemLogger } from "../logging/subsystem.js";
-import type {
+import type { ConnectionState, GramJSMessageContext, SendMessageParams } from "./types.js";
-  ConnectionState,
-  GramJSMessageContext,
-  SendMessageParams,
-  SessionOptions,
-} from "./types.js";
 
 const log = createSubsystemLogger("telegram-gramjs:client");
 
@@ -45,7 +40,7 @@ export class GramJSClient {
       apiId,
       apiHash,
       sessionString = "",
-      proxy,
+      proxy: _proxy,
       connectionRetries = 5,
       timeout = 30,
     } = options;

src/telegram-gramjs/config.ts

@@ -8,10 +8,7 @@
  */
 
 import type { OpenClawConfig } from "../config/config.js";
-import type {
+import type { TelegramGramJSConfig } from "../config/types.telegram-gramjs.js";
-  TelegramGramJSAccountConfig,
-  TelegramGramJSConfig,
-} from "../config/types.telegram-gramjs.js";
 import type { ChannelConfigAdapter } from "../channels/plugins/types.adapters.js";
 import type { ResolvedGramJSAccount } from "./types.js";
 import { createSubsystemLogger } from "../logging/subsystem.js";

src/telegram-gramjs/handlers.ts

@@ -12,7 +12,7 @@ const log = createSubsystemLogger("telegram-gramjs:handlers");
  * Convert GramJS message context to openclaw MsgContext.
  */
 export async function convertToMsgContext(
-  gramjsContext: GramJSMessageContext,
+  _gramjsContext: GramJSMessageContext,
   account: ResolvedGramJSAccount,
   accountId: string,
 ): Promise<MsgContext | null> {
@@ -169,8 +169,8 @@ export function buildSessionKey(gramjsContext: GramJSMessageContext, accountId:
  * - Checking message.entities for mentions
  */
 export function wasMessageMentioned(
-  gramjsContext: GramJSMessageContext,
+  _gramjsContext: GramJSMessageContext,
-  botUsername?: string,
+  _botUsername?: string,
 ): boolean {
   // TODO: Implement mention detection
   // For now, return false (rely on requireMention config)

src/telegram-gramjs/types.ts

@@ -3,7 +3,6 @@
  */
 
 import type { TelegramGramJSAccountConfig } from "../config/types.telegram-gramjs.js";
-import type { OpenClawConfig } from "../config/config.js";
 
 /**
  * Resolved account configuration with all necessary fields populated.