feat: add version display to CLI banner and WebUI

- Add getPackageVersion() utility function in src/utils/helpers.js
- Display version in CLI startup banner (e.g., "v2.4.2")
- Display version in WebUI navbar next to "CLAUDE PROXY SYSTEM"
- Refactor WebUI to use shared getPackageVersion() utility
- Update footer with GitHub icon and link

src/index.js

@@ -8,9 +8,12 @@ import { DEFAULT_PORT } from './constants.js';
 import { logger } from './utils/logger.js';
 import { config } from './config.js';
 import { getStrategyLabel, STRATEGY_NAMES, DEFAULT_STRATEGY } from './account-manager/strategies/index.js';
+import { getPackageVersion } from './utils/helpers.js';
 import path from 'path';
 import os from 'os';
 
+const packageVersion = getPackageVersion();
+
 // Parse command line arguments
 const args = process.argv.slice(2);
 const isDebug = args.includes('--debug') || process.env.DEBUG === 'true';
@@ -90,7 +93,7 @@ const server = app.listen(PORT, () => {
 
     logger.log(`
 ╔══════════════════════════════════════════════════════════════╗
-║           Antigravity Claude Proxy Server                    ║
+║            Antigravity Claude Proxy Server v${packageVersion}            ║
 ╠══════════════════════════════════════════════════════════════╣
 ║                                                              ║
 ${border}  ${align(`Server and WebUI running at: http://localhost:${PORT}`)}${border}

src/utils/helpers.js

@@ -1,9 +1,30 @@
+import { readFileSync } from 'fs';
+import { fileURLToPath } from 'url';
+import path from 'path';
+
 /**
  * Shared Utility Functions
  *
  * General-purpose helper functions used across multiple modules.
  */
 
+/**
+ * Get the package version from package.json
+ * @param {string} [defaultVersion='1.0.0'] - Default version if package.json cannot be read
+ * @returns {string} The package version
+ */
+export function getPackageVersion(defaultVersion = '1.0.0') {
+    try {
+        const __filename = fileURLToPath(import.meta.url);
+        const __dirname = path.dirname(__filename);
+        const packageJsonPath = path.join(__dirname, '../../package.json');
+        const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
+        return packageJson.version || defaultVersion;
+    } catch {
+        return defaultVersion;
+    }
+}
+
 /**
  * Format duration in milliseconds to human-readable string
  * @param {number} ms - Duration in milliseconds

src/webui/index.js

@@ -13,8 +13,6 @@
  */
 
 import path from 'path';
-import { readFileSync } from 'fs';
-import { fileURLToPath } from 'url';
 import express from 'express';
 import { getPublicConfig, saveConfig, config } from '../config.js';
 import { DEFAULT_PORT, ACCOUNT_CONFIG_PATH, MAX_ACCOUNTS } from '../constants.js';
@@ -22,18 +20,10 @@ import { readClaudeConfig, updateClaudeConfig, replaceClaudeConfig, getClaudeCon
 import { logger } from '../utils/logger.js';
 import { getAuthorizationUrl, completeOAuthFlow, startCallbackServer } from '../auth/oauth.js';
 import { loadAccounts, saveAccounts } from '../account-manager/storage.js';
+import { getPackageVersion } from '../utils/helpers.js';
 
 // Get package version
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = path.dirname(__filename);
-let packageVersion = '1.0.0';
-try {
-    const packageJsonPath = path.join(__dirname, '../../package.json');
-    const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
-    packageVersion = packageJson.version;
-} catch (error) {
-    logger.warn('[WebUI] Could not read package.json version, using default');
-}
+const packageVersion = getPackageVersion();
 
 // OAuth state storage (state -> { server, verifier, state, timestamp })
 // Maps state ID to active OAuth flow data