feat(auth): add anthropic api key storage and cli auth

src/cli/index.ts

@@ -20,6 +20,7 @@ import { registerGdriveAuthCommand } from './gdrive-auth.js';
 import { registerGtasksAuthCommand } from './gtasks-auth.js';
 import { registerOpenaiAuthCommand } from './openai-auth.js';
 import { registerZaiAuthCommand } from './zai-auth.js';
+import { registerAnthropicAuthCommand } from './anthropic-auth.js';
 import { registerSkillsCommand } from './skills.js';
 
 export function createProgram(): Command {
@@ -45,6 +46,7 @@ export function createProgram(): Command {
   registerGtasksAuthCommand(program);
   registerOpenaiAuthCommand(program);
   registerZaiAuthCommand(program);
+  registerAnthropicAuthCommand(program);
   registerSkillsCommand(program);
 
   return program;