fix(oauth): wire post-request 401/403 handler into skill-mcp withOperationRetry

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/features/skill-mcp-manager/manager.ts

@@ -4,7 +4,7 @@ import type { ClaudeCodeMcpServer } from "../claude-code-mcp-loader/types"
 import { McpOAuthProvider } from "../mcp-oauth/provider"
 import { disconnectAll, disconnectSession, forceReconnect } from "./cleanup"
 import { getOrCreateClient, getOrCreateClientWithRetryImpl } from "./connection"
-import { handleStepUpIfNeeded } from "./oauth-handler"
+import { handlePostRequestAuthError, handleStepUpIfNeeded } from "./oauth-handler"
 import type {
   OAuthProviderFactory,
   SkillMcpClientInfo,
@@ -110,6 +110,7 @@ export class SkillMcpManager {
   ): Promise<T> {
     const maxRetries = 3
     let lastError: Error | null = null
+    const refreshAttempted = new Set<string>()
 
     for (let attempt = 1; attempt <= maxRetries; attempt++) {
       try {
@@ -130,6 +131,17 @@ export class SkillMcpManager {
           continue
         }
 
+        const postRequestRefreshHandled = await handlePostRequestAuthError({
+          error: lastError,
+          config,
+          authProviders: this.state.authProviders,
+          createOAuthProvider: this.state.createOAuthProvider,
+          refreshAttempted,
+        })
+        if (postRequestRefreshHandled) {
+          continue
+        }
+
         if (!errorMessage.includes("not connected")) {
           throw lastError
         }