feat: Complete zCode CLI X with Telegram bot integration

- Add full Telegram bot functionality with Z.AI API integration
- Implement 4 tools: Bash, FileEdit, WebSearch, Git
- Add 3 agents: Code Reviewer, Architect, DevOps Engineer
- Add 6 skills for common coding tasks
- Add systemd service file for 24/7 operation
- Add nginx configuration for HTTPS webhook
- Add comprehensive documentation
- Implement WebSocket server for real-time updates
- Add logging system with Winston
- Add environment validation

🤖 zCode CLI X - Agentic coder with Z.AI + Telegram integration

src/api/index.js

@@ -0,0 +1,77 @@
+import axios from 'axios';
+import { logger } from '../utils/logger.js';
+import { checkEnv } from '../utils/env.js';
+
+export async function initAPI() {
+  const env = checkEnv();
+  
+  const config = {
+    baseUrl: env.GLM_BASE_URL || 'https://api.z.ai/api/coding/paas/v4',
+    apiKey: env.ZAI_API_KEY || '',
+  };
+
+  const client = axios.create({
+    baseURL: config.baseUrl,
+    headers: {
+      'Authorization': `Bearer ${config.apiKey}`,
+      'Content-Type': 'application/json',
+    },
+    timeout: 300000,
+  });
+
+  // Test connection
+  try {
+    const response = await client.get('/models', {
+      headers: {
+        'Authorization': `Bearer ${config.apiKey}`,
+      },
+      timeout: 10000
+    });
+    logger.info(`✓ Connected to Z.AI API (${response.data?.data?.length || 0} models available)`);
+  } catch (error) {
+    logger.error('✗ Failed to connect to Z.AI API');
+    throw error;
+  }
+
+  return {
+    config,
+    client,
+  };
+}
+
+export class ZAIProvider {
+  constructor(api) {
+    this.api = api;
+  }
+
+  async chat(messages, options = {}) {
+    const { model = 'glm-5.1', temperature = 0.7, maxTokens = 4096, stream = false } = options;
+
+    try {
+      const response = await this.api.client.post('/chat/completions', {
+        model,
+        messages,
+        temperature,
+        max_tokens: maxTokens,
+        stream,
+      });
+
+      if (stream) {
+        return response.data;
+      }
+
+      return response.data.choices[0].message;
+    } catch (error) {
+      logger.error('Z.AI API error:', error.response?.data || error.message);
+      throw error;
+    }
+  }
+
+  async complete(prompt, options = {}) {
+    return this.chat([{ role: 'user', content: prompt }], options);
+  }
+}
+
+export function createZAIProvider(api) {
+  return new ZAIProvider(api);
+}