feat: Implement user profile preferences for start page, Git identity, and task drawer auto-open, alongside Git server default branch configuration.

frontend/src/services/gitService.js

@@ -59,6 +59,20 @@ export const gitService = {
         return requestApi(`${API_BASE}/config/${configId}`, 'DELETE');
     },
 
+    /**
+     * [DEF:updateConfig:Function]
+     * @purpose Updates an existing Git server configuration.
+     * @pre     configId must exist and configData must be valid.
+     * @post    Config is updated and returned.
+     * @param   {string} configId - ID of the config to update.
+     * @param   {Object} config - Updated configuration details.
+     * @returns {Promise<Object>} Updated config.
+     */
+    async updateConfig(configId, config) {
+        console.log(`[updateConfig][Action] Updating Git config ${configId}`);
+        return requestApi(`${API_BASE}/config/${configId}`, 'PUT', config);
+    },
+
     /**
      * [DEF:testConnection:Function]
      * @purpose Tests the connection to a Git server with provided credentials.