feat(*): 模型生成链路 - 完善 Agnes 结果兼容、价格展示与请求日志追踪

backend/internal/service/analytics.go

@@ -942,12 +942,29 @@ func (s *Service) EnrichAPICallLog(log *model.ApiCallLog, responseBody []byte) {
 		log.ProviderRequestID = providerRequestIDFromPath(log.Path)
 	}
 	payloads := providerResponsePayloads(responseBody)
-	if len(payloads) == 0 {
-		return
-	}
 	for _, payload := range payloads {
 		s.enrichAPICallLogPayload(log, payload)
 	}
+	s.enrichAPICallLogFailureSummary(log, responseBody)
+}
+
+func (s *Service) enrichAPICallLogFailureSummary(log *model.ApiCallLog, responseBody []byte) {
+	if log.Status != model.ApiCallStatusFailed || log.StatusCode < 400 {
+		return
+	}
+	userMessage := providerUserFacingErrorMessage(providerHTTPError{
+		StatusCode: log.StatusCode,
+		Body:       string(responseBody),
+	})
+	detail := strings.TrimSpace(log.Error)
+	if detail == "" || detail == userMessage {
+		log.Error = userMessage
+		return
+	}
+	if strings.Contains(detail, userMessage) {
+		return
+	}
+	log.Error = truncateRunes(userMessage+"；上游："+detail, 2_000)
 }
 
 func (s *Service) enrichAPICallLogPayload(log *model.ApiCallLog, payload map[string]any) {

backend/internal/service/finance_token_test.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"encoding/json"
+	"strings"
 	"testing"
 
 	"infinite-canvas/backend/internal/model"
@@ -85,6 +86,24 @@ func TestEnrichAPICallLogReadsArkVideoUsage(t *testing.T) {
 	}
 }
 
+func TestEnrichAPICallLogKeepsUserFacingAndUpstreamFailureDetails(t *testing.T) {
+	log := &model.ApiCallLog{
+		Status:     model.ApiCallStatusFailed,
+		StatusCode: 400,
+		Error:      "上游 HTTP 400",
+	}
+	(&Service{}).EnrichAPICallLog(log, []byte(`{"error":{"code":"invalid_request","message":"invalid parameter: size"}}`))
+	if !strings.Contains(log.Error, "模型服务拒绝了请求，请检查模型和参数") {
+		t.Fatalf("EnrichAPICallLog() missing user-facing category: %q", log.Error)
+	}
+	if !strings.Contains(log.Error, "invalid parameter: size") {
+		t.Fatalf("EnrichAPICallLog() missing upstream detail: %q", log.Error)
+	}
+	if log.ErrorCode != "invalid_request" {
+		t.Fatalf("EnrichAPICallLog() error code = %q", log.ErrorCode)
+	}
+}
+
 func TestEnrichAPICallLogReadsChatCompletionStreamUsage(t *testing.T) {
 	log := &model.ApiCallLog{Capability: "text", Path: "/v1/chat/completions"}
 	stream := []byte("data: {\"id\":\"chatcmpl-test\",\"choices\":[{\"delta\":{\"content\":\"ok\"}}]}\n\n" +

backend/internal/service/task_api_call_log.go

@@ -0,0 +1,93 @@
+package service
+
+import (
+	"context"
+	"errors"
+	"log"
+	"strings"
+	"time"
+
+	"infinite-canvas/backend/internal/model"
+)
+
+// ensureFailedProviderAttemptLogged fills the task-level audit gap only when no
+// provider log exists. This normally represents a preflight failure; the coarse
+// request/state variants also preserve visibility if primary log persistence failed.
+func (s *Service) ensureFailedProviderAttemptLogged(task model.Task, taskErr error) {
+	if s == nil || s.repo == nil || strings.TrimSpace(task.ID) == "" || taskErr == nil {
+		return
+	}
+	hasLog, err := s.repo.HasAPICallLogForTask(task.ID)
+	if err != nil {
+		log.Printf("provider attempt log lookup failed: task_id=%s error=%v", task.ID, err)
+		return
+	}
+	if hasLog {
+		return
+	}
+
+	metadata := providerAnalyticsContext{
+		UserID:            task.UserID,
+		TaskID:            task.ID,
+		TraceID:           task.TraceID,
+		RequestID:         task.RequestID,
+		BillingOrderID:    task.BillingOrderID,
+		Capability:        capabilityFromTaskType(task.Type),
+		Operation:         task.Operation,
+		Model:             task.Model,
+		ProviderRequestID: task.ProviderRequestID,
+	}
+	decodedTask := task
+	if decrypted, decryptErr := s.decryptTaskInputJSON(task.InputJSON); decryptErr == nil {
+		decodedTask.InputJSON = decrypted
+		if value, ok := withProviderAnalytics(context.Background(), s, decodedTask).Value(providerAnalyticsKey{}).(providerAnalyticsContext); ok {
+			metadata = value
+		}
+	}
+
+	now := time.Now()
+	startedAt := now
+	if task.StartedAt != nil && !task.StartedAt.IsZero() {
+		startedAt = *task.StartedAt
+	}
+	path := "/task/provider-preflight"
+	errorCode := "request_not_sent"
+	statusCode := 0
+	var httpErr providerHTTPError
+	if errors.As(taskErr, &httpErr) {
+		path = "/task/provider-request"
+		errorCode = "provider_request_unlogged"
+		statusCode = httpErr.StatusCode
+	} else if strings.TrimSpace(metadata.ProviderRequestID) != "" {
+		path = "/task/provider-state"
+		errorCode = "provider_state_unlogged"
+	}
+	callLog := model.ApiCallLog{
+		UserID:            metadata.UserID,
+		TraceID:           metadata.TraceID,
+		RequestID:         metadata.RequestID,
+		ChannelID:         metadata.ChannelID,
+		TaskID:            metadata.TaskID,
+		BillingOrderID:    metadata.BillingOrderID,
+		Source:            "backend-task",
+		Capability:        metadata.Capability,
+		Operation:         metadata.Operation,
+		RequestKind:       "create",
+		Billable:          false,
+		APIFormat:         "internal",
+		Method:            "INTERNAL",
+		Path:              path,
+		Model:             metadata.Model,
+		Status:            model.ApiCallStatusFailed,
+		StatusCode:        statusCode,
+		DurationMs:        now.Sub(startedAt).Milliseconds(),
+		ProviderRequestID: metadata.ProviderRequestID,
+		ErrorCode:         errorCode,
+		Error:             truncateRunes(s.UserFacingErrorMessage(taskErr), 2_000),
+		StartedAt:         startedAt,
+		CreatedAt:         now,
+	}
+	if err := s.LogAPICall(callLog); err != nil {
+		log.Printf("provider attempt log write failed: task_id=%s error=%v", task.ID, err)
+	}
+}

backend/internal/service/task_api_call_log_test.go

@@ -0,0 +1,98 @@
+package service
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"infinite-canvas/backend/internal/model"
+	"infinite-canvas/backend/internal/repository"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+func TestEnsureFailedProviderAttemptLoggedFillsPreflightGapOnce(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open("file:provider-preflight-log?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(
+		&model.SystemSetting{},
+		&model.Asset{},
+		&model.CanvasProject{},
+		&model.Session{},
+		&model.Message{},
+		&model.Task{},
+		&model.TaskLog{},
+		&model.Result{},
+		&model.ApiCallLog{},
+		&model.TaskTextDelta{},
+		&model.ModelPricing{},
+	); err != nil {
+		t.Fatal(err)
+	}
+	task := model.Task{
+		ID:        "task-1",
+		UserID:    "user-1",
+		Type:      "canvas_video",
+		Status:    model.TaskStatusRunning,
+		Operation: "video.generate",
+		Model:     "logical-video",
+		InputJSON: `{"mode":"video","config":{"channelId":"channel-1","channelModelKey":"agnes-video-2.5","apiKey":"secret-key"}}`,
+	}
+	if err := db.Create(&task).Error; err != nil {
+		t.Fatal(err)
+	}
+	service := &Service{repo: repository.New(db)}
+	failure := errors.New("Agnes Video 2.5 size 必须是 720P、960P 或 2K")
+
+	service.ensureFailedProviderAttemptLogged(task, failure)
+	service.ensureFailedProviderAttemptLogged(task, failure)
+
+	var logs []model.ApiCallLog
+	if err := db.Find(&logs).Error; err != nil {
+		t.Fatal(err)
+	}
+	if len(logs) != 1 {
+		t.Fatalf("api call log count = %d, want 1", len(logs))
+	}
+	logged := logs[0]
+	if logged.ErrorCode != "request_not_sent" || logged.Status != model.ApiCallStatusFailed || logged.StatusCode != 0 {
+		t.Fatalf("unexpected preflight log state: %#v", logged)
+	}
+	if logged.ChannelID != "channel-1" || logged.Model != "agnes-video-2.5" || logged.Capability != "video" {
+		t.Fatalf("unexpected provider metadata: %#v", logged)
+	}
+	if logged.Error != failure.Error() {
+		t.Fatalf("preflight error = %q, want %q", logged.Error, failure.Error())
+	}
+	serialized := logged.RequestBody + logged.ResponseBody + logged.UpstreamURL + logged.Error
+	if strings.Contains(serialized, "secret-key") || logged.RequestBody != "" || logged.ResponseBody != "" {
+		t.Fatalf("preflight log leaked task input: %#v", logged)
+	}
+}
+
+func TestEnsureFailedProviderAttemptLoggedDoesNotDuplicateHTTPLog(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open("file:provider-http-log-dedup?mode=memory&cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.ApiCallLog{}); err != nil {
+		t.Fatal(err)
+	}
+	existing := model.ApiCallLog{ID: "api-log-1", TaskID: "task-1", Status: model.ApiCallStatusFailed}
+	if err := db.Create(&existing).Error; err != nil {
+		t.Fatal(err)
+	}
+	service := &Service{repo: repository.New(db)}
+	service.ensureFailedProviderAttemptLogged(model.Task{ID: "task-1"}, errors.New("provider rejected request"))
+
+	var count int64
+	if err := db.Model(&model.ApiCallLog{}).Count(&count).Error; err != nil {
+		t.Fatal(err)
+	}
+	if count != 1 {
+		t.Fatalf("api call log count = %d, want 1", count)
+	}
+}

backend/internal/service/task_terminal.go

@@ -22,6 +22,7 @@ type taskTerminalCoordinator struct {
 	logger            taskLifecycleLogger
 	outputs           taskOutputLifecycle
 	userFacingMessage func(error) string
+	logFailedAttempt  func(model.Task, error)
 }
 
 type taskTerminalRepository interface {
@@ -61,6 +62,7 @@ func newTaskTerminalCoordinator(s *Service) *taskTerminalCoordinator {
 		logger:            s,
 		outputs:           s,
 		userFacingMessage: s.UserFacingErrorMessage,
+		logFailedAttempt:  s.ensureFailedProviderAttemptLogged,
 	}
 }
 
@@ -73,6 +75,7 @@ func (s *Service) terminalCoordinator() *taskTerminalCoordinator {
 }
 
 func (c *taskTerminalCoordinator) markPreparationFailure(task *model.Task, stage string, err error, billingUncertain bool, refundReason string) error {
+	c.ensureFailedAttemptLogged(task, err)
 	task.Status = model.TaskStatusFailed
 	task.Stage = stage
 	task.Error = c.userFacingMessage(err)
@@ -126,6 +129,7 @@ func (c *taskTerminalCoordinator) handleExecutionFailure(task *model.Task, err e
 	}
 
 	task.Status = model.TaskStatusFailed
+	c.ensureFailedAttemptLogged(task, err)
 	task.Stage = "任务失败"
 	task.Error = c.userFacingMessage(err)
 	if terminalErr := c.markTerminalState(task); terminalErr != nil {
@@ -208,6 +212,13 @@ func (c *taskTerminalCoordinator) handleResultPersistenceFailure(task *model.Tas
 	return false, resultErr
 }
 
+func (c *taskTerminalCoordinator) ensureFailedAttemptLogged(task *model.Task, err error) {
+	if c.logFailedAttempt == nil || task == nil || err == nil {
+		return
+	}
+	c.logFailedAttempt(*task, err)
+}
+
 func (c *taskTerminalCoordinator) handleSuccess(task *model.Task) error {
 	c.finalizeReplay(task, model.TaskStatusSucceeded, "文本回放窗口更新失败")
 	var completionErr error

backend/internal/service/task_terminal_test.go

@@ -170,6 +170,32 @@ func TestTaskTerminalCoordinatorRefundsFailureBeforeProviderRequest(t *testing.T
 	}
 }
 
+func TestTaskTerminalCoordinatorLogsUnrecordedProviderFailure(t *testing.T) {
+	task := &model.Task{ID: "task-1", UserID: "user-1", BillingOrderID: "order-1"}
+	coordinator := newTaskTerminalCoordinatorForTest(
+		&taskTerminalRepositoryStub{task: task},
+		&taskTerminalBillingStub{},
+		&taskTerminalReplayStub{},
+		&taskTerminalSessionStub{},
+		&taskTerminalLoggerStub{},
+		&taskTerminalOutputStub{},
+	)
+	var loggedTask model.Task
+	var loggedErr error
+	coordinator.logFailedAttempt = func(value model.Task, err error) {
+		loggedTask = value
+		loggedErr = err
+	}
+	failure := errors.New("provider preflight failed")
+
+	if err := coordinator.handleExecutionFailure(task, failure, false, true); !errors.Is(err, failure) {
+		t.Fatalf("handleExecutionFailure() error = %v, want %v", err, failure)
+	}
+	if loggedTask.ID != task.ID || !errors.Is(loggedErr, failure) {
+		t.Fatalf("logged failure = task:%#v error:%v", loggedTask, loggedErr)
+	}
+}
+
 func TestTaskTerminalCoordinatorReturnsTerminalStateWriteError(t *testing.T) {
 	task := &model.Task{ID: "task-1", UserID: "user-1", BillingOrderID: "order-1"}
 	terminalError := errors.New("database unavailable")