0.11.0: 旗舰版功能补齐(License/登录记录/会话管理/角色管理/门户定时任务/模型配额/输出脱敏/供应链扫描/记忆管理/AI助手/真实概览)

- 新增迁移 000031-000034(登录日志/角色/模型配额/记忆)
- 新增包: license/memory/modelquota/assistant,扫描引擎
- 全部功能后端+前端+端到端验证通过(25 包单测)

internal/gateway/proxy.go

@@ -30,10 +30,14 @@ type Proxy struct {
 	circuits   sync.Map
 	admission  AdmissionController
 	tokenQuota TokenQuotaController
+	modelQuota ModelQuotaController
 	resilience ResiliencePolicy
 	audit      AuditRecorder
 	policies   *contentpolicy.Engine
 	pricing    *pricing.Service
+	outputPolicies interface {
+		OutputRedact([]byte) ([]byte, bool)
+	}
 }
 
 type cachedProxy struct {
@@ -99,6 +103,11 @@ func (p *Proxy) SetTokenQuotaController(controller TokenQuotaController) {
 	p.tokenQuota = controller
 }
 
+// SetModelQuotaController 启用模型级 Token 配额(provider 解析后预留)。
+func (p *Proxy) SetModelQuotaController(controller ModelQuotaController) {
+	p.modelQuota = controller
+}
+
 func (p *Proxy) SetResiliencePolicy(policy ResiliencePolicy) {
 	p.resilience = policy
 	p.transport.ResponseHeaderTimeout = policy.ResponseHeaderTimeout
@@ -106,6 +115,13 @@ func (p *Proxy) SetResiliencePolicy(policy ResiliencePolicy) {
 
 func (p *Proxy) SetAuditRecorder(recorder AuditRecorder)             { p.audit = recorder }
 func (p *Proxy) SetContentPolicyEngine(engine *contentpolicy.Engine) { p.policies = engine }
+
+// SetOutputPolicyEngine 启用输出侧脱敏(模型回答隐私拦截替换)。
+func (p *Proxy) SetOutputPolicyEngine(engine interface {
+	OutputRedact([]byte) ([]byte, bool)
+}) {
+	p.outputPolicies = engine
+}
 func (p *Proxy) SetPricingService(service *pricing.Service)          { p.pricing = service }
 
 func (p *Proxy) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
@@ -288,6 +304,30 @@ func (p *Proxy) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
 	request.Header.Del("X-Gateway-Provider")
 	writer.Header().Set("X-Gateway-Provider", resolved.Code)
 	span.setRoute(resolved.Code, writer.Header().Get("X-Gateway-Model"))
+	// 模型级配额(企业总配额,所有 Key 共享):在确定 provider 与 model 后
+	// 预留,与 API Key 级配额叠加;未配置配额或额度不足时按 429 处理。
+	if p.modelQuota != nil && usage != nil && modelPayload.model != "" {
+		modelQuota, quotaErr := p.modelQuota.Reserve(request.Context(), resolved.Code, modelPayload.model, estimateForReserve(p, request, usage), time.Now())
+		if quotaErr != nil {
+			writeOpenAIError(writer, http.StatusServiceUnavailable, "model_quota_unavailable", "model quota service is unavailable")
+			return
+		}
+		if modelQuota != nil {
+			if reservation, ok := modelQuota.(interface {
+				AllowedFlag() bool
+				RemainingTokens() int64
+				ResetTime() time.Time
+			}); ok {
+				if !reservation.AllowedFlag() {
+					writeOpenAIError(writer, http.StatusTooManyRequests, "insufficient_quota", "model token quota exceeded")
+					return
+				}
+				writer.Header().Set("X-ModelTokenLimit-Remaining", strconv.FormatInt(max(reservation.RemainingTokens(), 0), 10))
+				usage.modelController = p.modelQuota
+				usage.modelReservation = modelQuota
+			}
+		}
+	}
 	request.Body = span.captureBody(request.Body)
 	p.proxyFor(resolved).ServeHTTP(writer, request)
 }
@@ -323,6 +363,11 @@ func (p *Proxy) proxyFor(resolved ResolvedAdapter) *httputil.ReverseProxy {
 				session.finish(TokenUsage{})
 			}
 		}
+		// 输出侧脱敏:模型回答隐私信息拦截替换(仅 2xx 且启用了输出策略时)。
+		if response.StatusCode >= http.StatusOK && response.StatusCode < http.StatusMultipleChoices && p.outputPolicies != nil {
+			response.Body = newOutputRedactReadCloser(response.Body, response.Header.Get("Content-Type"), p.outputPolicies)
+			response.Header.Set("X-Gateway-Output-Redacted", "true")
+		}
 		return nil
 	}
 	reverseProxy.ErrorHandler = func(writer http.ResponseWriter, request *http.Request, err error) {
@@ -351,6 +396,18 @@ func (p *Proxy) proxyFor(resolved ResolvedAdapter) *httputil.ReverseProxy {
 	return reverseProxy
 }
 
+// estimateForReserve 复用已有 usage session 的预留估算;不可用时回退 0。
+func estimateForReserve(p *Proxy, request *http.Request, usage *usageSession) int64 {
+	if usage != nil && usage.reservation.Reserved > 0 {
+		return usage.reservation.Reserved
+	}
+	estimate, err := prepareTokenBudget(request, p.maxBody)
+	if err != nil {
+		return 0
+	}
+	return estimate
+}
+
 func (p *Proxy) authorized(request *http.Request) (apikey.Principal, error) {
 	presented := strings.TrimSpace(request.Header.Get("X-Gateway-API-Key"))
 	if presented == "" {