fix: correct ProcessEnv type import in txnBot

Changes ProcessEnv import from non-existent 'node:process' module
to use built-in NodeJS.ProcessEnv type.

Fixes TypeScript compilation error:
  Module '"node:process"' has no exported member 'ProcessEnv'

Also adds NodeJS to ESLint globals to resolve no-undef warning.

All services now healthy and operational.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

services/txnBot/eslint.config.js

@@ -18,6 +18,7 @@ export default [
         process: 'readonly',
         fetch: 'readonly',
         setInterval: 'readonly',
+        NodeJS: 'readonly',
       },
     },
     plugins: {

services/txnBot/src/services/BotConfigService.ts

@@ -1,13 +1,12 @@
 import path from 'path';
 import { fileURLToPath } from 'url';
 import dotenv from 'dotenv';
-import type { ProcessEnv } from 'node:process';
 import { EnvConfig } from '../types.js';
 
 export class BotConfigService {
   private readonly config: EnvConfig;
 
-  constructor(private readonly env: ProcessEnv = process.env) {
+  constructor(private readonly env: NodeJS.ProcessEnv = process.env) {
     this.loadEnvFile();
     this.config = this.resolveConfig();
   }