Initialize SHSF CLI project with core structure, configuration, and command handling

src/api.ts

@@ -0,0 +1,25 @@
+import axios, { AxiosInstance } from 'axios';
+import { loadConfig } from './config.js';
+import { createRequire } from 'module';
+
+const require = createRequire(import.meta.url);
+const pkg = require('../package.json');
+
+let apiClient: AxiosInstance | null = null;
+
+export async function getApiClient(): Promise<AxiosInstance> {
+  if (apiClient) return apiClient;
+
+  const config = await loadConfig();
+  
+  apiClient = axios.create({
+    baseURL: config.SHSF_INSTANCE,
+    headers: {
+      'x-access-key': config.SHSF_TOKEN,
+      'Content-Type': 'application/json',
+      "User-Agent": "SHSF-CLI/" + pkg.version
+    },
+  });
+
+  return apiClient;
+}