feat(agent): add get and delete agent methods with error handling

Implement getAgent and deleteAgent methods in AgentClient with proper error handling
Add formatAgentServerError utility for consistent error messages

src/renderer/src/api/agent.ts

@@ -1,12 +1,16 @@
+import { formatAgentServerError } from '@renderer/utils'
 import {
   AgentForm,
+  AgentServerErrorSchema,
   CreateAgentRequest,
   CreateAgentResponse,
   CreateAgentResponseSchema,
+  GetAgentResponse,
+  GetAgentResponseSchema,
   type ListAgentsResponse,
   ListAgentsResponseSchema
 } from '@types'
-import { Axios, AxiosRequestConfig } from 'axios'
+import { Axios, AxiosRequestConfig, isAxiosError } from 'axios'
 
 type ApiVersion = 'v1'
 
@@ -52,4 +56,30 @@ export class AgentClient {
       throw new Error('Failed to create agent.', { cause: error })
     }
   }
+
+  public async getAgent(id: string): Promise<GetAgentResponse> {
+    const url = `/${this.apiVersion}/agents/${id}`
+    try {
+      const response = await this.axios.get(url)
+      const data = GetAgentResponseSchema.parse(response.data)
+      return data
+    } catch (error) {
+      throw new Error('Failed to get agent.', { cause: error })
+    }
+  }
+
+  public async deleteAgent(id: string): Promise<void> {
+    const url = `/${this.apiVersion}/agents/${id}`
+    try {
+      await this.axios.delete(url)
+    } catch (error) {
+      if (isAxiosError(error)) {
+        const result = AgentServerErrorSchema.safeParse(error.response)
+        if (result.success) {
+          throw new Error(formatAgentServerError(result.data), { cause: error })
+        }
+      }
+      throw new Error('Failed to delete agent.', { cause: error })
+    }
+  }
 }

src/renderer/src/utils/api.ts

@@ -1,3 +1,6 @@
+import { AgentServerError } from '@renderer/types'
+import { t } from 'i18next'
+
 /**
  * 格式化 API key 字符串。
  *
@@ -69,3 +72,6 @@ export function splitApiKeyString(keyStr: string): string[] {
     .map((k) => k.replace(/\\,/g, ','))
     .filter((k) => k)
 }
+
+export const formatAgentServerError = (error: AgentServerError) =>
+  `${t('common.error')}: ${error.code} ${error.message}`