feat(admin): 添加网络代理配置和钱包交易功能

- 在管理面板中集成网络代理配置显示和平台代理设置
- 添加钱包摘要和交易列表API接口及数据管理
- 实现SSE流式响应中的错误处理机制
- 添加全局HTTP代理环境变量配置支持
- 更新平台表单以支持代理模式选择和自定义代理地址
- 集成钱包交易查询过滤和分页功能
- 优化API错误详情解析和显示格式

apps/api/internal/runner/proxy.go

@@ -0,0 +1,73 @@
+package runner
+
+import (
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/easyai/easyai-ai-gateway/apps/api/internal/clients"
+	"github.com/easyai/easyai-ai-gateway/apps/api/internal/netproxy"
+	"github.com/easyai/easyai-ai-gateway/apps/api/internal/store"
+)
+
+type httpClientCache struct {
+	none   *http.Client
+	global *http.Client
+	mu     sync.Mutex
+	custom map[string]*http.Client
+}
+
+func newHTTPClientCache() *httpClientCache {
+	return &httpClientCache{
+		none:   newHTTPClient(nil),
+		global: newHTTPClient(http.ProxyFromEnvironment),
+		custom: map[string]*http.Client{},
+	}
+}
+
+func (s *Service) httpClientForCandidate(candidate store.RuntimeModelCandidate, simulated bool) (*http.Client, error) {
+	if simulated {
+		return s.httpClients.none, nil
+	}
+	config, err := netproxy.Normalize(netproxy.FromPlatformConfig(candidate.PlatformConfig))
+	if err != nil {
+		return nil, &clients.ClientError{Code: "invalid_proxy", Message: err.Error(), Retryable: false}
+	}
+	switch config.Mode {
+	case netproxy.ModeGlobal:
+		if strings.TrimSpace(s.cfg.GlobalHTTPProxy) != "" {
+			return s.httpClients.customClient(s.cfg.GlobalHTTPProxy)
+		}
+		return s.httpClients.global, nil
+	case netproxy.ModeCustom:
+		return s.httpClients.customClient(config.HTTPProxy)
+	default:
+		return s.httpClients.none, nil
+	}
+}
+
+func (c *httpClientCache) customClient(rawProxy string) (*http.Client, error) {
+	normalized, proxyURL, err := netproxy.ParseHTTPProxy(rawProxy)
+	if err != nil {
+		return nil, &clients.ClientError{Code: "invalid_proxy", Message: err.Error(), Retryable: false}
+	}
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	if client := c.custom[normalized]; client != nil {
+		return client, nil
+	}
+	client := newHTTPClient(http.ProxyURL(proxyURL))
+	c.custom[normalized] = client
+	return client, nil
+}
+
+func newHTTPClient(proxy func(*http.Request) (*url.URL, error)) *http.Client {
+	transport := http.DefaultTransport.(*http.Transport).Clone()
+	transport.Proxy = proxy
+	return &http.Client{
+		Timeout:   120 * time.Second,
+		Transport: transport,
+	}
+}