refactor: remove CursorAccountCard component and related localization entries

- Deleted the CursorAccountCard.vue component, which handled user account login and status.
- Removed associated localization entries from catalog.json and various language files.
- Updated Home.vue to eliminate references to the removed component.
- Refactored clientApi.js to remove unused account-related API functions.

internal/backend/server/config/types.go

@@ -13,7 +13,7 @@ import (
 )
 
 const (
-	DefaultBackendListenAddr                = "127.0.0.1:18090"
+	DefaultBackendListenAddr                = "127.0.0.1:8000"
 	DefaultProxyListenAddr                  = "127.0.0.1:18080"
 	DefaultFrontendBaseURL                  = "http://127.0.0.1"
 	DefaultProviderStreamIdleTimeoutSeconds = 240

internal/backend/server/upstream/action.go

@@ -14,12 +14,13 @@ import (
 type CompatRouteConfig struct {
 	Name          string
 	StatusCode    int
-	JSONBody      map[string]any
 	MockProtoType string
 	MockBuilder   func(*RequestContext) (map[string]any, error)
 	ConsoleLog    bool
 }
 
+const DefaultCursorUpstreamBaseURL = "https://api2.cursor.sh:443"
+
 func ForwardAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
 	return func(ctx *server.Context) error {
 		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
@@ -30,31 +31,27 @@ func ForwardAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc
 	}
 }
 
-// AuthenticatedForwardAction forwards a Cursor control-plane request with the
-// independent desktop account after the local-mode identity rewrite has run.
-func AuthenticatedForwardAction(deps Dependencies, cfg CompatRouteConfig, authorizationProvider AuthorizationProvider) server.HandlerFunc {
+// FallbackForwardAction preserves an MITM request's original upstream URL. A
+// native request has no original host metadata, so it is resolved against the
+// configured default upstream while retaining its path and query string.
+func FallbackForwardAction(deps Dependencies, cfg CompatRouteConfig, defaultBaseURL string) server.HandlerFunc {
+	forward := ForwardAction(deps, cfg)
 	return func(ctx *server.Context) error {
-		reqCtx, _, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
+		if ctx == nil || ctx.Request == nil || ctx.Request.URL == nil {
+			return fmt.Errorf("fallback upstream request context is invalid")
 		}
-		if reqCtx == nil || reqCtx.Request == nil {
-			return fmt.Errorf("Cursor 控制面请求上下文无效")
+		if ctx.UpstreamURL == nil {
+			baseURL, err := ParseAndValidateRawURL(defaultBaseURL)
+			if err != nil {
+				return fmt.Errorf("parse fallback upstream URL: %w", err)
+			}
+			targetURL := *ctx.Request.URL
+			targetURL.Scheme = baseURL.Scheme
+			targetURL.Host = baseURL.Host
+			targetURL.User = baseURL.User
+			ctx.UpstreamURL = &targetURL
 		}
-		if authorizationProvider == nil {
-			return fmt.Errorf("Cursor 账号服务未初始化")
-		}
-		authorization, err := authorizationProvider.Authorization(reqCtx.Request.Context())
-		if err != nil {
-			return err
-		}
-		_, err = ForwardToUpstream(reqCtx, ForwardOptions{
-			PatchHeaders: func(headers http.Header) {
-				headers.Set("Authorization", authorization)
-				headers.Set("x-cursor-checksum", BuildCursorChecksum(authorization))
-			},
-		})
-		return err
+		return forward(ctx)
 	}
 }
 
@@ -68,63 +65,13 @@ func FixedStatusAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerF
 	}
 }
 
-func MockJSONAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
+func MockDevSessionTokenAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
 	return func(ctx *server.Context) error {
 		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
 		if err != nil {
 			return err
 		}
-		return handleMockJSON(reqCtx, route)
-	}
-}
-
-func MockOAuthAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
-	return func(ctx *server.Context) error {
-		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
-		}
-		return handleMockOAuth(reqCtx, route)
-	}
-}
-
-func MockAuthFullStripeProfileAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
-	return func(ctx *server.Context) error {
-		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
-		}
-		return handleMockAuthFullStripeProfile(reqCtx, route)
-	}
-}
-
-func MockAuthStripeProfileAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
-	return func(ctx *server.Context) error {
-		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
-		}
-		return handleMockAuthStripeProfile(reqCtx, route)
-	}
-}
-
-func MockAuthPollAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
-	return func(ctx *server.Context) error {
-		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
-		}
-		return handleMockAuthPoll(reqCtx, route)
-	}
-}
-
-func MockAuthEmailAction(deps Dependencies, cfg CompatRouteConfig) server.HandlerFunc {
-	return func(ctx *server.Context) error {
-		reqCtx, route, err := newCompatRouteObjects(ctx, deps, cfg)
-		if err != nil {
-			return err
-		}
-		return handleMockAuthEmail(reqCtx, route)
+		return handleMockDevSessionToken(reqCtx, route)
 	}
 }
 
@@ -169,7 +116,6 @@ func newCompatRouteObjects(ctx *server.Context, deps Dependencies, cfg CompatRou
 		Name:               cfg.Name,
 		Pattern:            ctx.Request.URL.Path,
 		StatusCode:         cfg.StatusCode,
-		JSONBody:           cfg.JSONBody,
 		MockProtoType:      cfg.MockProtoType,
 		MockPayloadBuilder: cfg.MockBuilder,
 		ConsoleLog:         cfg.ConsoleLog,
@@ -221,10 +167,6 @@ func DashboardTeamsMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
 	return buildDashboardTeamsPayload(reqCtx)
 }
 
-func DashboardManagedSkillsMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
-	return buildDashboardManagedSkillsPayload(reqCtx)
-}
-
 // EmptyMockBuilder возвращает пустой proto-ответ для ручек, где клиенту
 // достаточно успешного "пусто": нет team-настроек, нет репозиториев,
 // нет маркетплейсов/плагинов/команд, телеметрия принята без обработки.
@@ -237,14 +179,6 @@ func SubmitLogsMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
 	return map[string]any{"success": true}, nil
 }
 
-func DashboardGetMeMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
-	return buildDashboardGetMePayload(reqCtx)
-}
-
-func DashboardUserPrivacyModeMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
-	return buildDashboardUserPrivacyModePayload(reqCtx)
-}
-
 func DashboardPlanInfoMockBuilder(reqCtx *RequestContext) (map[string]any, error) {
 	return buildDashboardPlanInfoPayload(reqCtx)
 }

internal/backend/server/upstream/auth.go

@@ -0,0 +1,193 @@
+package upstream
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	legacyruntime "cursor/internal/runtime"
+)
+
+const (
+	localDevDefaultPlan        = "ultra"
+	localDevTokenLifetime      = 10 * 365 * 24 * time.Hour
+	localDevSubscriptionActive = "active"
+)
+
+var localDevPlans = map[string]struct{}{
+	"free":       {},
+	"pro":        {},
+	"pro_plus":   {},
+	"ultra":      {},
+	"enterprise": {},
+}
+
+type localDevSessionClaims struct {
+	Subject   string `json:"sub"`
+	Email     string `json:"email"`
+	Plan      string `json:"cursor_local_plan"`
+	Trial     bool   `json:"cursor_local_trial"`
+	TokenType string `json:"type"`
+	Issuer    string `json:"iss"`
+	Scope     string `json:"scope"`
+	IssuedAt  int64  `json:"iat"`
+	ExpiresAt int64  `json:"exp"`
+}
+
+func handleMockDevSessionToken(reqCtx *RequestContext, route *Route) error {
+	_ = route
+	if reqCtx == nil || reqCtx.Request == nil || reqCtx.ResponseWriter == nil {
+		return fmt.Errorf("dev session request context is invalid")
+	}
+
+	plan, trial, email, err := parseLocalDevSessionQuery(reqCtx.Request)
+	if err != nil {
+		writeJSONError(reqCtx.ResponseWriter, http.StatusBadRequest, err.Error())
+		return nil
+	}
+
+	token, claims, err := buildLocalDevSessionToken(plan, trial, email, time.Now())
+	if err != nil {
+		return err
+	}
+	responseBody, err := marshalJSONBody(map[string]any{
+		"accessToken":  token,
+		"refreshToken": token,
+		"authId":       claims.Subject,
+	})
+	if err != nil {
+		return err
+	}
+	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
+	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
+	_, _ = reqCtx.ResponseWriter.Write(responseBody)
+	return nil
+}
+
+func parseLocalDevSessionQuery(request *http.Request) (string, bool, string, error) {
+	plan := localDevDefaultPlan
+	email := legacyruntime.InjectAccountEmail
+	if request == nil || request.URL == nil {
+		return plan, false, email, nil
+	}
+
+	query := request.URL.Query()
+	if requestedPlan := strings.TrimSpace(query.Get("plan")); requestedPlan != "" {
+		plan = requestedPlan
+	}
+	if _, ok := localDevPlans[plan]; !ok {
+		return "", false, "", fmt.Errorf("unsupported dev plan %q", plan)
+	}
+
+	trial := false
+	if rawTrial := strings.TrimSpace(query.Get("trial")); rawTrial != "" {
+		parsed, err := strconv.ParseBool(rawTrial)
+		if err != nil {
+			return "", false, "", fmt.Errorf("invalid trial value %q", rawTrial)
+		}
+		trial = parsed
+	}
+	if trial && plan != "pro" && plan != "pro_plus" {
+		return "", false, "", fmt.Errorf("trial is only supported for pro and pro_plus")
+	}
+
+	if requestedEmail := strings.TrimSpace(query.Get("email")); requestedEmail != "" {
+		email = requestedEmail
+	}
+	return plan, trial, email, nil
+}
+
+func buildLocalDevSessionToken(plan string, trial bool, email string, now time.Time) (string, localDevSessionClaims, error) {
+	authID := "local-dev-" + strings.ReplaceAll(plan, "_", "-")
+	if trial {
+		authID += "-trial"
+	}
+	claims := localDevSessionClaims{
+		Subject:   authID,
+		Email:     strings.TrimSpace(email),
+		Plan:      plan,
+		Trial:     trial,
+		TokenType: "session",
+		Issuer:    "cursor-local-backend",
+		Scope:     "openid profile email",
+		IssuedAt:  now.Unix(),
+		ExpiresAt: now.Add(localDevTokenLifetime).Unix(),
+	}
+	headerJSON, err := json.Marshal(map[string]string{"alg": "HS256", "typ": "JWT"})
+	if err != nil {
+		return "", localDevSessionClaims{}, err
+	}
+	claimsJSON, err := json.Marshal(claims)
+	if err != nil {
+		return "", localDevSessionClaims{}, err
+	}
+	encode := base64.RawURLEncoding.EncodeToString
+	token := encode(headerJSON) + "." + encode(claimsJSON) + ".local-dev"
+	return token, claims, nil
+}
+
+func localDevClaimsFromRequest(reqCtx *RequestContext) (localDevSessionClaims, bool) {
+	if reqCtx == nil {
+		return localDevSessionClaims{}, false
+	}
+	return localDevClaimsFromAuthorization(reqCtx.Headers.Get("authorization"))
+}
+
+func localDevClaimsFromAuthorization(authorization string) (localDevSessionClaims, bool) {
+	authorization = strings.TrimSpace(authorization)
+	if len(authorization) >= len("Bearer ") && strings.EqualFold(authorization[:len("Bearer ")], "Bearer ") {
+		authorization = strings.TrimSpace(authorization[len("Bearer "):])
+	}
+	parts := strings.Split(authorization, ".")
+	if len(parts) != 3 {
+		return localDevSessionClaims{}, false
+	}
+	payload, err := base64.RawURLEncoding.DecodeString(parts[1])
+	if err != nil {
+		return localDevSessionClaims{}, false
+	}
+	claims := localDevSessionClaims{}
+	if err := json.Unmarshal(payload, &claims); err != nil {
+		return localDevSessionClaims{}, false
+	}
+	if claims.Issuer != "cursor-local-backend" {
+		return localDevSessionClaims{}, false
+	}
+	if _, ok := localDevPlans[claims.Plan]; !ok || strings.TrimSpace(claims.Subject) == "" {
+		return localDevSessionClaims{}, false
+	}
+	return claims, true
+}
+
+func localDevPlanFromRequest(reqCtx *RequestContext) string {
+	if claims, ok := localDevClaimsFromRequest(reqCtx); ok {
+		return claims.Plan
+	}
+	return localDevDefaultPlan
+}
+
+func localDevPlanDetails(plan string) (string, int) {
+	switch plan {
+	case "free":
+		return "Free Plan", 0
+	case "pro":
+		return "Pro Plan", 2000
+	case "pro_plus":
+		return "Pro+ Plan", 6000
+	case "enterprise":
+		return "Enterprise Plan", 0
+	default:
+		return "Ultra Plan", localUltraPlanIncludedCents
+	}
+}
+
+func writeJSONError(writer http.ResponseWriter, statusCode int, message string) {
+	writer.Header().Set("content-type", "application/json")
+	writer.WriteHeader(statusCode)
+	payload, _ := json.Marshal(map[string]string{"error": message})
+	_, _ = writer.Write(payload)
+}

internal/backend/server/upstream/auth_test.go

@@ -0,0 +1,138 @@
+package upstream
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"cursor/gen/aiserverv1"
+	"cursor/internal/backend/server"
+
+	"google.golang.org/protobuf/proto"
+)
+
+func TestMockDevSessionTokenActionSupportsCursorDevLoginModes(t *testing.T) {
+	testCases := []struct {
+		name  string
+		query string
+		plan  string
+		trial bool
+	}{
+		{name: "default", query: "", plan: "ultra"},
+		{name: "free", query: "?plan=free", plan: "free"},
+		{name: "pro trial", query: "?plan=pro&trial=true", plan: "pro", trial: true},
+		{name: "pro", query: "?plan=pro", plan: "pro"},
+		{name: "pro plus trial", query: "?plan=pro_plus&trial=true", plan: "pro_plus", trial: true},
+		{name: "pro plus", query: "?plan=pro_plus", plan: "pro_plus"},
+		{name: "ultra", query: "?plan=ultra", plan: "ultra"},
+		{name: "enterprise", query: "?plan=enterprise", plan: "enterprise"},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			request := httptest.NewRequest(http.MethodGet, "http://local/auth/cursor_dev_session_token"+testCase.query, nil)
+			recorder := httptest.NewRecorder()
+			handler := MockDevSessionTokenAction(Dependencies{}, CompatRouteConfig{Name: "dev_login", StatusCode: http.StatusOK})
+			if err := handler(&server.Context{Writer: recorder, Request: request}); err != nil {
+				t.Fatalf("dev login handler: %v", err)
+			}
+			if recorder.Code != http.StatusOK {
+				t.Fatalf("status: got %d, want %d; body=%s", recorder.Code, http.StatusOK, recorder.Body.String())
+			}
+
+			var response struct {
+				AccessToken  string `json:"accessToken"`
+				RefreshToken string `json:"refreshToken"`
+				AuthID       string `json:"authId"`
+			}
+			if err := json.Unmarshal(recorder.Body.Bytes(), &response); err != nil {
+				t.Fatalf("decode response: %v", err)
+			}
+			if response.AccessToken == "" || response.RefreshToken != response.AccessToken {
+				t.Fatalf("unexpected tokens: access=%q refresh=%q", response.AccessToken, response.RefreshToken)
+			}
+			claims, ok := localDevClaimsFromAuthorization("Bearer " + response.AccessToken)
+			if !ok {
+				t.Fatal("response access token is not a local dev JWT")
+			}
+			if claims.Plan != testCase.plan || claims.Trial != testCase.trial {
+				t.Fatalf("claims: got plan=%q trial=%v, want plan=%q trial=%v", claims.Plan, claims.Trial, testCase.plan, testCase.trial)
+			}
+			if response.AuthID != claims.Subject || claims.ExpiresAt <= time.Now().Unix() {
+				t.Fatalf("unexpected identity claims: response=%+v claims=%+v", response, claims)
+			}
+		})
+	}
+}
+
+func TestMockDevSessionTokenActionUsesRequestedEmail(t *testing.T) {
+	request := httptest.NewRequest(http.MethodGet, "http://local/auth/cursor_dev_session_token?plan=pro&email=dev%2Bcursor%40example.com", nil)
+	recorder := httptest.NewRecorder()
+	handler := MockDevSessionTokenAction(Dependencies{}, CompatRouteConfig{Name: "dev_login", StatusCode: http.StatusOK})
+	if err := handler(&server.Context{Writer: recorder, Request: request}); err != nil {
+		t.Fatalf("dev login handler: %v", err)
+	}
+
+	var response map[string]string
+	if err := json.Unmarshal(recorder.Body.Bytes(), &response); err != nil {
+		t.Fatalf("decode response: %v", err)
+	}
+	claims, ok := localDevClaimsFromAuthorization(response["accessToken"])
+	if !ok || claims.Email != "dev+cursor@example.com" {
+		t.Fatalf("unexpected email claims: %+v", claims)
+	}
+}
+
+func TestMockDevSessionTokenActionRejectsUnsupportedOptions(t *testing.T) {
+	for _, query := range []string{"?plan=business", "?plan=ultra&trial=true", "?plan=pro&trial=maybe"} {
+		request := httptest.NewRequest(http.MethodGet, "http://local/auth/cursor_dev_session_token"+query, nil)
+		recorder := httptest.NewRecorder()
+		handler := MockDevSessionTokenAction(Dependencies{}, CompatRouteConfig{Name: "dev_login", StatusCode: http.StatusOK})
+		if err := handler(&server.Context{Writer: recorder, Request: request}); err != nil {
+			t.Fatalf("dev login handler for %q: %v", query, err)
+		}
+		if recorder.Code != http.StatusBadRequest {
+			t.Fatalf("status for %q: got %d, want %d", query, recorder.Code, http.StatusBadRequest)
+		}
+	}
+}
+
+func TestEnterpriseDevSessionProvidesBillableTeam(t *testing.T) {
+	token, _, err := buildLocalDevSessionToken("enterprise", false, "enterprise@example.com", time.Now())
+	if err != nil {
+		t.Fatalf("build token: %v", err)
+	}
+	reqCtx := authRequestContext(http.MethodPost, "/aiserver.v1.DashboardService/GetTeams", "", token)
+	payload, err := buildDashboardTeamsPayload(reqCtx)
+	if err != nil {
+		t.Fatalf("build teams: %v", err)
+	}
+	encoded, err := encodeMockProto("aiserver.v1.GetTeamsResponse", payload)
+	if err != nil {
+		t.Fatalf("encode teams: %v", err)
+	}
+	response := &aiserverv1.GetTeamsResponse{}
+	if err := proto.Unmarshal(encoded, response); err != nil {
+		t.Fatalf("decode teams: %v", err)
+	}
+	if len(response.Teams) != 1 || !response.Teams[0].GetHasBilling() || response.Teams[0].GetSeats() == 0 || !response.Teams[0].GetIsEnterprise() {
+		t.Fatalf("unexpected enterprise teams: %+v", response.Teams)
+	}
+}
+
+func authRequestContext(method string, path string, body string, token string) *RequestContext {
+	request := httptest.NewRequest(method, "http://local"+path, strings.NewReader(body))
+	if token != "" {
+		request.Header.Set("Authorization", "Bearer "+token)
+	}
+	return &RequestContext{
+		ResponseWriter: httptest.NewRecorder(),
+		Request:        request,
+		Method:         method,
+		Headers:        request.Header.Clone(),
+		RequestBody:    []byte(body),
+	}
+}

internal/backend/server/upstream/client.go

@@ -2,23 +2,18 @@ package upstream
 
 import (
 	"bytes"
-	"crypto/sha256"
-	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
-	"math/big"
 	"net/http"
 	"net/url"
 	"strconv"
 	"strings"
-	"time"
 
 	"cursor/gen/agentv1"
 	"cursor/gen/aiserverv1"
 	"cursor/internal/logger"
 	"cursor/internal/netproxy"
-	legacyruntime "cursor/internal/runtime"
 
 	"google.golang.org/protobuf/encoding/protojson"
 	"google.golang.org/protobuf/proto"
@@ -87,14 +82,6 @@ func buildUpstreamRequest(reqCtx *RequestContext, body []byte, options ForwardOp
 	}
 	upstreamRequest.Host = reqCtx.TargetURL.Host
 
-	if shouldRewriteHost(reqCtx.TargetURL.Hostname()) {
-		auth := formatBearerAuthorization(legacyruntime.LocalRelayToken)
-		if auth == "" {
-			return nil, nil, legacyruntime.ErrInvalidSystemSetting
-		}
-		upstreamRequest.Header.Set("Authorization", auth)
-		upstreamRequest.Header.Set("x-cursor-checksum", BuildCursorChecksum(auth))
-	}
 	if options.PatchHeaders != nil {
 		options.PatchHeaders(upstreamRequest.Header)
 	}
@@ -167,61 +154,21 @@ func copyRequestHeadersForUpstream(target http.Header, source http.Header) {
 }
 
 func copyResponseHeadersToClient(target http.Header, source http.Header) {
+	localWildcardCORS := target.Get("Access-Control-Allow-Origin") == "*"
 	for key, values := range source {
 		lowerKey := strings.ToLower(key)
 		if _, exists := hopByHopHeaders[lowerKey]; exists {
 			continue
 		}
+		if localWildcardCORS && (lowerKey == "access-control-allow-origin" || lowerKey == "access-control-allow-credentials") {
+			continue
+		}
 		for _, value := range values {
 			target.Add(key, value)
 		}
 	}
 }
 
-func shouldRewriteHost(host string) bool {
-	normalized := strings.TrimSuffix(strings.ToLower(strings.TrimSpace(host)), ".")
-	if normalized == "" {
-		return false
-	}
-	return normalized == "cursor.sh" || strings.HasSuffix(normalized, ".cursor.sh")
-}
-
-func BuildCursorChecksum(authorization string) string {
-	const (
-		checksumTimestampDivisor = 1_000_000
-		checksumInitialSeed      = 165
-	)
-	timestamp := time.Now().UnixMilli() / checksumTimestampDivisor
-	timestampBytes := make([]byte, 6)
-	timestampBigInt := big.NewInt(timestamp)
-	for index := 0; index < len(timestampBytes); index++ {
-		shift := uint((len(timestampBytes) - 1 - index) * 8)
-		timestampBytes[index] = byte(new(big.Int).Rsh(timestampBigInt, shift).Uint64() & 0xff)
-	}
-	seed := checksumInitialSeed
-	for index := 0; index < len(timestampBytes); index++ {
-		current := int(timestampBytes[index]^byte(seed)) + (index % 256)
-		current &= 0xff
-		timestampBytes[index] = byte(current)
-		seed = current
-	}
-	prefix := strings.TrimRight(base64.StdEncoding.EncodeToString(timestampBytes), "=")
-	hashBytes := sha256.Sum256([]byte(strings.TrimSpace(authorization)))
-	hash := fmt.Sprintf("%x", hashBytes)
-	return prefix + hash[:32]
-}
-
-func formatBearerAuthorization(raw string) string {
-	value := strings.TrimSpace(raw)
-	if value == "" {
-		return ""
-	}
-	if strings.HasPrefix(strings.ToLower(value), "bearer ") {
-		return value
-	}
-	return "Bearer " + value
-}
-
 func shouldRequestCarryBody(method string) bool {
 	switch strings.ToUpper(strings.TrimSpace(method)) {
 	case http.MethodGet, http.MethodHead, http.MethodDelete:
@@ -238,17 +185,6 @@ func marshalJSONBody(payload map[string]any) ([]byte, error) {
 	return json.Marshal(payload)
 }
 
-func handleMockJSON(reqCtx *RequestContext, route *Route) error {
-	responseBody, err := marshalJSONBody(route.JSONBody)
-	if err != nil {
-		return err
-	}
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
-	reqCtx.ResponseWriter.WriteHeader(route.StatusCode)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
 func handleMockProto(reqCtx *RequestContext, route *Route) error {
 	payload := map[string]any{}
 	if route.MockPayloadBuilder != nil {
@@ -270,91 +206,6 @@ func handleMockProto(reqCtx *RequestContext, route *Route) error {
 	return nil
 }
 
-func handleMockOAuth(reqCtx *RequestContext, route *Route) error {
-	payload := struct {
-		RefreshToken string `json:"refresh_token"`
-	}{}
-	_ = json.Unmarshal(reqCtx.RequestBody, &payload)
-	responseBody, err := marshalJSONBody(map[string]any{
-		"access_token": payload.RefreshToken,
-		"id_token":     payload.RefreshToken,
-		"shouldLogout": false,
-	})
-	if err != nil {
-		return err
-	}
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
-	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
-func handleMockAuthFullStripeProfile(reqCtx *RequestContext, route *Route) error {
-	_ = route
-	responseBody, err := marshalJSONBody(map[string]any{
-		"membershipType":          localUltraMembershipType,
-		"subscriptionStatus":      localUltraSubscriptionStatus,
-		"lastPaymentFailed":       false,
-		"pendingCancellationDate": "",
-		"daysRemainingOnTrial":    0,
-		"paymentId":               localUltraPaymentID,
-	})
-	if err != nil {
-		return err
-	}
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
-	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
-func handleMockAuthStripeProfile(reqCtx *RequestContext, route *Route) error {
-	_ = route
-	responseBody, err := json.Marshal(localUltraPaymentID)
-	if err != nil {
-		return err
-	}
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
-	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
-func handleMockAuthPoll(reqCtx *RequestContext, route *Route) error {
-	_ = route
-	responseBody, err := marshalJSONBody(map[string]any{
-		"accessToken":  legacyruntime.InjectAuthToken,
-		"refreshToken": legacyruntime.InjectAuthToken,
-		"authId":       "local_auth",
-	})
-	if err != nil {
-		return err
-	}
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/json")
-	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
-func handleMockAuthEmail(reqCtx *RequestContext, route *Route) error {
-	_ = route
-	responseBody := encodeAuthGetEmailResponse(legacyruntime.InjectAccountEmail)
-	reqCtx.ResponseWriter.Header().Set("content-type", "application/proto")
-	reqCtx.ResponseWriter.Header().Set("content-length", strconv.Itoa(len(responseBody)))
-	reqCtx.ResponseWriter.WriteHeader(http.StatusOK)
-	_, _ = reqCtx.ResponseWriter.Write(responseBody)
-	return nil
-}
-
-func encodeAuthGetEmailResponse(email string) []byte {
-	output := make([]byte, 0, len(email)+8)
-	output = append(output, 0x0a)
-	output = appendProtoVarint(output, uint64(len(email)))
-	output = append(output, []byte(email)...)
-	output = append(output, 0x10, 0x03) // GetEmailResponse.SignUpType.SIGN_UP_TYPE_GOOGLE
-	return output
-}
-
 func appendProtoVarint(output []byte, value uint64) []byte {
 	for value >= 0x80 {
 		output = append(output, byte(value)|0x80)
@@ -431,8 +282,6 @@ func newProtoMessage(typeName string) (proto.Message, error) {
 		return &aiserverv1.GetTeamAdminSettingsResponse{}, nil
 	case "aiserver.v1.GetTeamReposResponse":
 		return &aiserverv1.GetTeamReposResponse{}, nil
-	case "aiserver.v1.ListMarketplacesResponse":
-		return &aiserverv1.ListMarketplacesResponse{}, nil
 	case "aiserver.v1.GetUsableModelsResponse":
 		return &agentv1.GetUsableModelsResponse{}, nil
 	case "aiserver.v1.GetDefaultModelForCliResponse":
@@ -441,10 +290,6 @@ func newProtoMessage(typeName string) (proto.Message, error) {
 		return &aiserverv1.GetDefaultModelResponse{}, nil
 	case "aiserver.v1.GetGlobalCommandsResponse":
 		return &aiserverv1.GetGlobalCommandsResponse{}, nil
-	case "aiserver.v1.GetEffectiveUserPluginsResponse":
-		return &aiserverv1.GetEffectiveUserPluginsResponse{}, nil
-	case "aiserver.v1.RegisterMarketplaceAndPluginsResponse":
-		return &aiserverv1.RegisterMarketplaceAndPluginsResponse{}, nil
 	case "aiserver.v1.GetCliDownloadUrlResponse":
 		return &aiserverv1.GetCliDownloadUrlResponse{}, nil
 	case "aiserver.v1.SubmitLogsResponse":

internal/backend/server/upstream/fallback_action_test.go

@@ -0,0 +1,147 @@
+package upstream
+
+import (
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"cursor/internal/backend/server"
+)
+
+type fallbackHTTPClientFunc func(*http.Request) (*http.Response, error)
+
+func (fn fallbackHTTPClientFunc) Do(request *http.Request) (*http.Response, error) {
+	return fn(request)
+}
+
+func TestFallbackForwardActionUsesOriginalMITMUpstreamURL(t *testing.T) {
+	originalURL := "https://api3.cursor.sh/aiserver.v1.UnknownService/Call?mode=exact"
+	parsedURL, err := url.Parse(originalURL)
+	if err != nil {
+		t.Fatalf("parse original URL: %v", err)
+	}
+
+	client := fallbackHTTPClientFunc(func(request *http.Request) (*http.Response, error) {
+		if got := request.URL.String(); got != originalURL {
+			t.Fatalf("upstream URL: got %q, want %q", got, originalURL)
+		}
+		if got := request.Method; got != http.MethodPost {
+			t.Fatalf("method: got %q, want POST", got)
+		}
+		body, readErr := io.ReadAll(request.Body)
+		if readErr != nil {
+			t.Fatalf("read request body: %v", readErr)
+		}
+		if got := string(body); got != "request-body" {
+			t.Fatalf("body: got %q", got)
+		}
+		if got := request.Header.Get("X-Test-Header"); got != "preserved" {
+			t.Fatalf("custom header: got %q", got)
+		}
+		if got := request.Header.Get(server.HeaderServerUpstreamURL); got != "" {
+			t.Fatalf("internal upstream header leaked: %q", got)
+		}
+		return &http.Response{
+			StatusCode: http.StatusAccepted,
+			Status:     "202 Accepted",
+			Header:     http.Header{"X-Upstream-Response": []string{"preserved"}},
+			Body:       io.NopCloser(strings.NewReader("upstream-body")),
+		}, nil
+	})
+
+	request := httptest.NewRequest(http.MethodPost, "http://localhost:8000/ignored", strings.NewReader("request-body"))
+	request.Header.Set("X-Test-Header", "preserved")
+	request.Header.Set(server.HeaderServerUpstreamURL, originalURL)
+	recorder := httptest.NewRecorder()
+	ctx := &server.Context{Writer: recorder, Request: request, UpstreamURL: parsedURL}
+	action := FallbackForwardAction(Dependencies{HTTPClient: client}, CompatRouteConfig{Name: "fallback"}, DefaultCursorUpstreamBaseURL)
+
+	if err := action(ctx); err != nil {
+		t.Fatalf("forward fallback request: %v", err)
+	}
+	if got := recorder.Code; got != http.StatusAccepted {
+		t.Fatalf("response status: got %d, want %d", got, http.StatusAccepted)
+	}
+	if got := recorder.Header().Get("X-Upstream-Response"); got != "preserved" {
+		t.Fatalf("response header: got %q", got)
+	}
+	if got := recorder.Body.String(); got != "upstream-body" {
+		t.Fatalf("response body: got %q", got)
+	}
+}
+
+func TestFallbackForwardActionUsesDefaultUpstreamForNativeRequest(t *testing.T) {
+	const defaultBaseURL = "https://fallback.example:8443"
+	wantURL := defaultBaseURL + "/aiserver.v1.UnknownService/Call?mode=native"
+	client := fallbackHTTPClientFunc(func(request *http.Request) (*http.Response, error) {
+		if got := request.URL.String(); got != wantURL {
+			t.Fatalf("upstream URL: got %q, want %q", got, wantURL)
+		}
+		return &http.Response{
+			StatusCode: http.StatusNoContent,
+			Status:     "204 No Content",
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader("")),
+		}, nil
+	})
+
+	request := httptest.NewRequest(http.MethodGet, "http://localhost:8000/aiserver.v1.UnknownService/Call?mode=native", nil)
+	recorder := httptest.NewRecorder()
+	ctx := &server.Context{Writer: recorder, Request: request}
+	action := FallbackForwardAction(Dependencies{HTTPClient: client}, CompatRouteConfig{Name: "fallback"}, defaultBaseURL)
+
+	if err := action(ctx); err != nil {
+		t.Fatalf("forward fallback request: %v", err)
+	}
+	if got := recorder.Code; got != http.StatusNoContent {
+		t.Fatalf("response status: got %d, want %d", got, http.StatusNoContent)
+	}
+}
+
+func TestFallbackForwardActionPreservesAuthorization(t *testing.T) {
+	const (
+		originalURL           = "https://api2.cursor.sh/aiserver.v1.AuthService/GetEmail"
+		officialAuthorization = "Bearer official-access-token"
+		officialChecksum      = "official-checksum"
+	)
+	parsedURL, err := url.Parse(originalURL)
+	if err != nil {
+		t.Fatalf("parse original URL: %v", err)
+	}
+
+	client := fallbackHTTPClientFunc(func(request *http.Request) (*http.Response, error) {
+		if got := request.Header.Get("Authorization"); got != officialAuthorization {
+			t.Fatalf("authorization: got %q, want %q", got, officialAuthorization)
+		}
+		if got := request.Header.Get("x-cursor-checksum"); got != officialChecksum {
+			t.Fatalf("checksum: got %q, want %q", got, officialChecksum)
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Status:     "200 OK",
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader("upstream-account")),
+		}, nil
+	})
+
+	request := httptest.NewRequest(http.MethodPost, "http://localhost:8000/aiserver.v1.AuthService/GetEmail", nil)
+	request.Header.Set("Authorization", officialAuthorization)
+	request.Header.Set("x-cursor-checksum", officialChecksum)
+	recorder := httptest.NewRecorder()
+	ctx := &server.Context{Writer: recorder, Request: request, UpstreamURL: parsedURL}
+	action := FallbackForwardAction(
+		Dependencies{HTTPClient: client},
+		CompatRouteConfig{Name: "fallback"},
+		DefaultCursorUpstreamBaseURL,
+	)
+
+	if err := action(ctx); err != nil {
+		t.Fatalf("forward authenticated fallback request: %v", err)
+	}
+	if got := recorder.Body.String(); got != "upstream-account" {
+		t.Fatalf("response body: got %q, want upstream-account", got)
+	}
+}

internal/backend/server/upstream/mocks.go

@@ -24,9 +24,7 @@ const (
 	// файловых инструментов падают с "[unimplemented] HTTP 404".
 	localPathEncryptionKey = "6f6e63652d6c6f63616c2d706174682d656e6372797074696f6e2d6b6579"
 
-	localUltraMembershipType       = "ultra"
 	localUltraPaymentID            = "local_ultra"
-	localUltraSubscriptionStatus   = "active"
 	localUltraPlanIncludedCents    = 20000
 	localUltraDashboardUserID      = 1
 	localUltraBillingCycleDuration = 30 * 24 * time.Hour
@@ -431,7 +429,8 @@ func buildServerTimePayload(*RequestContext) (map[string]any, error) {
 
 func buildServerConfigPayload(*RequestContext) (map[string]any, error) {
 	return map[string]any{
-		"configVersion":            "local_cli_sandbox_defaults_disabled_v2",
+		"configVersion": "local_cli_sandbox_defaults_disabled_v2",
+		"isDevDoNotUseForSecretThingsBecauseCanBeSpoofedByUsers": true,
 		"http2Config":              "HTTP2_CONFIG_FORCE_ALL_DISABLED",
 		"cliSandboxDefaultEnabled": true,
 		"indexingConfig": map[string]any{
@@ -547,26 +546,29 @@ func buildFirstWindowStatsigDecisionPayload(*RequestContext) (map[string]any, er
 	}, nil
 }
 
-func buildDashboardCurrentPeriodUsagePayload(*RequestContext) (map[string]any, error) {
+func buildDashboardCurrentPeriodUsagePayload(reqCtx *RequestContext) (map[string]any, error) {
+	plan := localDevPlanFromRequest(reqCtx)
+	planName, includedSpend := localDevPlanDetails(plan)
 	billingCycleStart := time.Now().Add(-localUltraBillingCycleDuration).UnixMilli()
 	billingCycleEnd := time.Now().Add(10 * 365 * 24 * time.Hour).UnixMilli()
+	displayMessage := planName + " active"
 	return map[string]any{
-		"autoModelSelectedDisplayMessage":  "Ultra plan active",
+		"autoModelSelectedDisplayMessage":  displayMessage,
 		"billingCycleEnd":                  billingCycleEnd,
 		"billingCycleStart":                billingCycleStart,
-		"displayMessage":                   "Ultra plan active",
+		"displayMessage":                   displayMessage,
 		"displayThreshold":                 99999999,
 		"enabled":                          true,
-		"namedModelSelectedDisplayMessage": "Ultra plan active",
+		"namedModelSelectedDisplayMessage": displayMessage,
 		"planUsage": map[string]any{
 			"apiPercentUsed":   0,
 			"apiSpend":         0,
 			"autoPercentUsed":  0,
 			"autoSpend":        0,
-			"bonusTooltip":     "Ultra local account mock is active.",
-			"includedSpend":    localUltraPlanIncludedCents,
-			"limit":            localUltraPlanIncludedCents,
-			"remaining":        localUltraPlanIncludedCents,
+			"bonusTooltip":     "Local account mock is active.",
+			"includedSpend":    includedSpend,
+			"limit":            includedSpend,
+			"remaining":        includedSpend,
 			"remainingBonus":   false,
 			"totalPercentUsed": 0,
 			"totalSpend":       0,
@@ -577,62 +579,45 @@ func buildDashboardCurrentPeriodUsagePayload(*RequestContext) (map[string]any, e
 	}, nil
 }
 
-func buildDashboardTeamsPayload(*RequestContext) (map[string]any, error) {
+func buildDashboardTeamsPayload(reqCtx *RequestContext) (map[string]any, error) {
+	if claims, ok := localDevClaimsFromRequest(reqCtx); ok && claims.Plan == "enterprise" {
+		return map[string]any{
+			"teams": []map[string]any{{
+				"name":               "Local Enterprise",
+				"id":                 1,
+				"seats":              1,
+				"hasBilling":         true,
+				"subscriptionStatus": localDevSubscriptionActive,
+				"verified":           true,
+				"isEnterprise":       true,
+				"membershipType":     "enterprise",
+			}},
+		}, nil
+	}
 	return map[string]any{
 		"teams": []map[string]any{},
 	}, nil
 }
 
-func buildDashboardManagedSkillsPayload(*RequestContext) (map[string]any, error) {
-	return map[string]any{
-		"skills": []map[string]any{},
-	}, nil
-}
-
-func buildDashboardGetMePayload(reqCtx *RequestContext) (map[string]any, error) {
-	authID := ""
-	if reqCtx != nil {
-		authID = authIDFromBearer(reqCtx.Headers.Get("authorization"))
+func buildDashboardPlanInfoPayload(reqCtx *RequestContext) (map[string]any, error) {
+	plan := localDevPlanFromRequest(reqCtx)
+	planName, includedAmountCents := localDevPlanDetails(plan)
+	price := "$200/mo"
+	switch plan {
+	case "free":
+		price = "$0/mo"
+	case "pro":
+		price = "$20/mo"
+	case "pro_plus":
+		price = "$60/mo"
+	case "enterprise":
+		price = "Custom"
 	}
-	if authID == "" {
-		authID = authIDFromJWT(legacyruntime.InjectAuthToken)
-	}
-	if authID == "" {
-		authID = localUltraPaymentID
-	}
-
-	return map[string]any{
-		"authId":            authID,
-		"userId":            localUltraDashboardUserID,
-		"email":             legacyruntime.InjectAccountEmail,
-		"firstName":         "Cursor",
-		"lastName":          "Local",
-		"createdAt":         time.Now().UTC().Format(time.RFC3339),
-		"isEnterpriseUser":  false,
-		"teamName":          "",
-		"emailDomainType":   "personal",
-		"country":           "US",
-		"profilePictureUrl": "",
-	}, nil
-}
-
-func buildDashboardUserPrivacyModePayload(*RequestContext) (map[string]any, error) {
-	return map[string]any{
-		"privacyMode":                          "PRIVACY_MODE_NO_STORAGE",
-		"hoursRemainingInGracePeriod":          0,
-		"isEnforcedByTeam":                     false,
-		"isNotMigratedToServerSourceOfTruth":   false,
-		"partnerDataShare":                     false,
-		"hasAcknowledgedGracePeriodDisclaimer": true,
-	}, nil
-}
-
-func buildDashboardPlanInfoPayload(*RequestContext) (map[string]any, error) {
 	return map[string]any{
 		"planInfo": map[string]any{
-			"planName":            "Ultra Plan",
-			"includedAmountCents": localUltraPlanIncludedCents,
-			"price":               "$200/mo",
+			"planName":            planName,
+			"includedAmountCents": includedAmountCents,
+			"price":               price,
 			"billingCycleEnd":     time.Now().Add(10 * 365 * 24 * time.Hour).UnixMilli(),
 		},
 	}, nil

internal/backend/server/upstream/mocks_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 
 	"cursor/gen/agentv1"
+	"cursor/gen/aiserverv1"
 	legacyruntime "cursor/internal/runtime"
 
 	"google.golang.org/protobuf/proto"
@@ -54,6 +55,26 @@ func TestEncodeCLIModelsUsesAgentModelDetailsWireFormat(t *testing.T) {
 	}
 }
 
+func TestBuildServerConfigEnablesDevUserBackendCommands(t *testing.T) {
+	payload, err := buildServerConfigPayload(nil)
+	if err != nil {
+		t.Fatalf("build server config: %v", err)
+	}
+
+	encoded, err := encodeMockProto("aiserver.v1.GetServerConfigResponse", payload)
+	if err != nil {
+		t.Fatalf("encode server config: %v", err)
+	}
+
+	response := &aiserverv1.GetServerConfigResponse{}
+	if err := proto.Unmarshal(encoded, response); err != nil {
+		t.Fatalf("decode server config: %v", err)
+	}
+	if !response.GetIsDevDoNotUseForSecretThingsBecauseCanBeSpoofedByUsers() {
+		t.Fatal("expected server config to enable dev-user backend commands")
+	}
+}
+
 func TestBuildBootstrapStatsigConfigJSONDisablesAlwaysLocalDecompositionGate(t *testing.T) {
 	payload, err := buildBootstrapStatsigConfigJSON(12345, "test-auth-id")
 	if err != nil {

internal/backend/server/upstream/types.go

@@ -20,13 +20,6 @@ type SystemSettingService interface {
 	ResolveModelAdapters(context.Context) ([]legacyruntime.ModelAdapterConfig, error)
 }
 
-// AuthorizationProvider supplies the independent Cursor account used only by
-// official control-plane requests such as Plugins, Skills, and MCP registry.
-type AuthorizationProvider interface {
-	Authorization(context.Context) (string, error)
-	SignedIn() bool
-}
-
 type HTTPClient interface {
 	Do(req *http.Request) (*http.Response, error)
 }
@@ -91,7 +84,6 @@ type Route struct {
 	Matcher            Matcher
 	ConsoleLog         bool
 	StatusCode         int
-	JSONBody           map[string]any
 	MockProtoType      string
 	MockPayloadBuilder func(*RequestContext) (map[string]any, error)
 	Handler            RouteHandler