feat(payment): 新增微信支付宝积分充值与对账

backend/internal/protocol/manifest.go

@@ -258,7 +258,7 @@ func ValidateManifest(manifest Manifest) error {
 		return fmt.Errorf("plugin must declare at least one contribution")
 	}
 	if len(manifest.Contributes.Providers) == 0 {
-		return nil
+		return validatePaymentProviderContributions(manifest)
 	}
 	providerIDs := make(map[string]struct{}, len(manifest.Contributes.Providers))
 	for index, provider := range manifest.Contributes.Providers {
@@ -316,6 +316,33 @@ func ValidateManifest(manifest Manifest) error {
 			}
 		}
 	}
+	return validatePaymentProviderContributions(manifest)
+}
+
+func validatePaymentProviderContributions(manifest Manifest) error {
+	seen := make(map[string]struct{}, len(manifest.Contributes.PaymentProviders))
+	for index, provider := range manifest.Contributes.PaymentProviders {
+		provider.ID = strings.TrimSpace(provider.ID)
+		if provider.ID == "" || strings.TrimSpace(provider.Label) == "" || !validManifestIdentifier(provider.ID) {
+			return fmt.Errorf("payment provider contribution %d requires a valid id and label", index)
+		}
+		if _, exists := seen[provider.ID]; exists {
+			return fmt.Errorf("duplicate payment provider contribution %q", provider.ID)
+		}
+		seen[provider.ID] = struct{}{}
+		if strings.TrimSpace(provider.Icon) == "" {
+			return fmt.Errorf("payment provider contribution %q requires an icon", provider.ID)
+		}
+		switch provider.CheckoutMode {
+		case "qr_code", "redirect":
+		default:
+			return fmt.Errorf("payment provider contribution %q has unsupported checkout mode %q", provider.ID, provider.CheckoutMode)
+		}
+		policy := provider.ExpiryPolicy
+		if policy.MinMinutes <= 0 || policy.DefaultMinutes < policy.MinMinutes || policy.MaxMinutes < policy.DefaultMinutes {
+			return fmt.Errorf("payment provider contribution %q has invalid expiry policy", provider.ID)
+		}
+	}
 	return nil
 }
 
@@ -358,7 +385,7 @@ func normalizeManifestForProvider(manifest *Manifest, index int) error {
 }
 
 func hasNonProviderContribution(contributes ManifestContributions) bool {
-	return len(contributes.Workflows) > 0 || len(contributes.CanvasNodes) > 0 || len(contributes.Transforms) > 0 || len(contributes.Commands) > 0 || len(contributes.AssetSources) > 0 || len(contributes.UsageObservers) > 0 || len(contributes.AICapabilities) > 0 || len(contributes.Agents) > 0 || len(contributes.ImportExport) > 0
+	return len(contributes.PaymentProviders) > 0 || len(contributes.Workflows) > 0 || len(contributes.CanvasNodes) > 0 || len(contributes.Transforms) > 0 || len(contributes.Commands) > 0 || len(contributes.AssetSources) > 0 || len(contributes.UsageObservers) > 0 || len(contributes.AICapabilities) > 0 || len(contributes.Agents) > 0 || len(contributes.ImportExport) > 0
 }
 
 func operationSummary(operation ManifestOperation) string {

backend/internal/protocol/types.go

@@ -279,22 +279,38 @@ type ManifestField struct {
 	Type        string   `json:"type"`
 	Label       string   `json:"label,omitempty"`
 	Required    bool     `json:"required,omitempty"`
+	Secret      bool     `json:"secret,omitempty"`
 	Default     any      `json:"default,omitempty"`
 	Description string   `json:"description,omitempty"`
 	Values      []string `json:"values,omitempty"`
 }
 
 type ManifestContributions struct {
-	Providers      []ManifestProvider   `json:"providers,omitempty"`
-	Workflows      []ManifestWorkflow   `json:"workflows,omitempty"`
-	CanvasNodes    []ManifestCanvasNode `json:"canvasNodes,omitempty"`
-	Transforms     []ManifestTransform  `json:"transforms,omitempty"`
-	Commands       []ManifestCommand    `json:"commands,omitempty"`
-	AssetSources   []string             `json:"assetSources,omitempty"`
-	UsageObservers []string             `json:"usageObservers,omitempty"`
-	AICapabilities []string             `json:"aiCapabilities,omitempty"`
-	Agents         []string             `json:"agents,omitempty"`
-	ImportExport   []string             `json:"importExport,omitempty"`
+	Providers        []ManifestProvider        `json:"providers,omitempty"`
+	PaymentProviders []ManifestPaymentProvider `json:"paymentProviders,omitempty"`
+	Workflows        []ManifestWorkflow        `json:"workflows,omitempty"`
+	CanvasNodes      []ManifestCanvasNode      `json:"canvasNodes,omitempty"`
+	Transforms       []ManifestTransform       `json:"transforms,omitempty"`
+	Commands         []ManifestCommand         `json:"commands,omitempty"`
+	AssetSources     []string                  `json:"assetSources,omitempty"`
+	UsageObservers   []string                  `json:"usageObservers,omitempty"`
+	AICapabilities   []string                  `json:"aiCapabilities,omitempty"`
+	Agents           []string                  `json:"agents,omitempty"`
+	ImportExport     []string                  `json:"importExport,omitempty"`
+}
+
+type ManifestPaymentProvider struct {
+	ID           string                      `json:"id"`
+	Label        string                      `json:"label"`
+	Icon         string                      `json:"icon"`
+	CheckoutMode string                      `json:"checkoutMode"`
+	ExpiryPolicy ManifestPaymentExpiryPolicy `json:"expiryPolicy"`
+}
+
+type ManifestPaymentExpiryPolicy struct {
+	DefaultMinutes int `json:"defaultMinutes"`
+	MinMinutes     int `json:"minMinutes"`
+	MaxMinutes     int `json:"maxMinutes"`
 }
 
 type ManifestProvider struct {