修复bug及添加日志打印

docs/backend-production-handoff.md

@@ -28,6 +28,14 @@ MAINTENANCE_BATCH_SIZE=500
 
 `DATABASE_URL` 必须使用 `require`、`verify-ca` 或 `verify-full` 之一；生产 API 会拒绝 `sslmode=disable` 和 `MIGRATE_ON_START=true`。
 
+## 结构化接口日志
+
+- 关键业务 API 的 `http request` 日志包含 `request`、`response`、状态码、耗时和 `request_id`；JSON 正文单向最多记录 64 KiB，超过后只记录字节数与 `body_truncated=true`。
+- 手机号只保留后四位；账号名脱敏；密码、姓名/称谓、Cookie、Authorization、Token、内嵌私密链接及 Idempotency-Key 原值不得写入日志。
+- 访客状态和公示屏请求使用路由模板记录路径，不记录真实 Token。
+- SSE `/api/events` 与历史 CSV 导出不记录响应正文；CSV 可能包含个人信息，只记录请求筛选、状态码和正文省略原因。
+- Ingress/Nginx 的 access log 也必须使用路由模板或关闭上述 Token 路径的 URI 记录，应用内脱敏无法清理上游代理已经写出的原始 URI。
+
 ## Kubernetes 发布顺序
 
 1. 运维先执行数据库迁移 Job，容器命令为 `/usr/local/bin/migrate`。

findings.md

@@ -567,3 +567,17 @@
 - 项目创建、项目基础信息与运行规则已经使用 form submit 和明确保存按钮；后台唯一的点击即提交维护项是账号维护。
 - 账号维护现在本地组合角色、状态和项目权限草稿，仅在用户点击“保存修改”后调用一次更新 API。
 - 服务端对最后一个启用管理员的降级或停用返回 `409 LAST_ACTIVE_ADMIN`，不再仅依赖前端防误触。
+
+# 2026-07-28 关键接口日志审计
+
+- 当前 `accessLog` 只记录 request_id、method、path、status 和 duration_ms，不记录业务出入参。
+- 统一中间件比逐 Handler 埋点更小、更不易漏接口；仅对 `/api/` 业务接口记录正文，健康检查、SSE 事件流和 CSV 导出不捕获正文。
+- 手机号、密码、Cookie、Authorization、状态 token 等不能原样写日志；JSON 字段需递归脱敏，查询参数也需按字段名脱敏。
+- 请求/响应正文必须设置大小上限，防止队列快照、历史查询等大响应放大日志和内存占用。
+- 文档明确禁止普通应用日志记录完整手机号、姓名、密码、Cookie 与访客/公示 Token；实现采用现有路由白名单、递归脱敏及 64 KiB 上限。
+- 现有中间件顺序还会让 panic 绕过访问日志并丢失 request_id；将 request_id 和 accessLog 放在 recoverPanic 外层后，500 可被统一记录。
+- SSE 与 CSV 下载不捕获响应正文；Idempotency-Key 仅记录是否存在，不记录原值。
+- 请求正文先按路由对应 DTO 严格校验；未知字段、类型错误或不支持的正文只记录省略原因，避免攻击者借无效请求向普通日志写入任意隐私内容。
+- 查询参数按路由白名单投影；历史手机号查询只保留尾四位，其他自由查询只记录是否存在。
+- 账号名的 `username`、`display_name`、`created_by`、`requested_by` 等别名统一脱敏，UUID 形态用户名也不例外。
+- ResponseWriter 仅在底层实际支持时暴露 `http.Flusher`；已提交响应后发生 panic 时不再追加错误 JSON。

progress.md

@@ -654,3 +654,16 @@
 - 新建页与真实项目维护页均完成 1440×1000 和 390×844 响应式验收：三处分区、四个规则分组、既有数据回填、成对输入对齐及无横向溢出均通过。
 - 浏览器控制台无 error/warn，临时视口已恢复，Phase 33 全部验收项完成。
 - 台账收尾后再次执行目标差异格式检查，结果仍为通过。
+
+# Session: 2026-07-28（关键接口结构化出入参日志）
+
+- 已启动路由、日志中间件与敏感字段审计。
+- 已确定以现有访问日志中间件为统一入口，保持 Handler 契约不变。
+- 成功标准：关键 API 有结构化输入/输出、敏感字段脱敏、正文大小受控、流式/文件接口不捕获正文、日志不影响业务响应。
+- 已新增日志回归测试；旧实现准确复现四项失败：真实 Token 路径、缺少出入参、重复 WriteHeader 覆盖状态、panic 无访问日志。
+- 已实现路由白名单、JSON 旁路捕获、递归脱敏、64 KiB 上限、SSE/CSV 排除、模板路径及 panic 链修正。
+- 聚焦测试已通过：业务 Handler 仍收到完整请求、客户端仍收到完整响应，日志中不含手机号、密码、姓氏、Token 或 Idempotency-Key 原值。
+- 独立安全审查发现并关闭账号别名、未知字段和 Flusher 能力三个边界；新增 UUID 形态用户名、无效 JSON、历史查询、CSV/SSE 与已写响应后 panic 回归。
+- 已更新生产交接文档，补充结构化日志字段、脱敏规则、正文上限及 Ingress URI 脱敏要求。
+- 最终验证通过：`go test ./... -count=1`、`go vet ./...`、`go build ./cmd/api`、`git diff --check`。
+- `go test -race` 因当前 Windows Go 环境关闭 CGO 未运行；未发现由此遗留的功能失败。

server/internal/httpapi/http_logging.go

@@ -0,0 +1,480 @@
+package httpapi
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"calllinesystem/server/internal/security"
+)
+
+const (
+	maxLoggedBody   = 64 << 10
+	redactedLogText = "[REDACTED]"
+)
+
+var (
+	phoneInLogTextPattern = regexp.MustCompile(`(?:\+[0-9][0-9 ()-]{6,20}[0-9]|[0-9]{10,15})`)
+	importantLogRoutes    = map[string]struct{}{
+		"POST /api/staff/auth/login":              {},
+		"POST /api/staff/auth/logout":             {},
+		"GET /api/staff/auth/me":                  {},
+		"POST /api/admin/auth/login":              {},
+		"POST /api/admin/auth/logout":             {},
+		"GET /api/admin/auth/me":                  {},
+		"GET /api/staff/projects":                 {},
+		"GET /api/staff/projects/{id}/queue":      {},
+		"POST /api/staff/projects/{id}/tickets":   {},
+		"POST /api/staff/projects/{id}/call-next": {},
+		"GET /api/public/status/{token}":          {},
+		"GET /api/public/projects":                {},
+		"POST /api/public/projects/{id}/tickets":  {},
+		"POST /api/public/status/search":          {},
+		"POST /api/internal/status/search":        {},
+		"GET /api/display/{token}/snapshot":       {},
+		"GET /api/events":                         {},
+		"GET /api/admin/overview":                 {},
+		"GET /api/admin/users":                    {},
+		"POST /api/admin/users":                   {},
+		"PUT /api/admin/users/{id}":               {},
+		"POST /api/admin/projects":                {},
+		"PUT /api/admin/projects/{id}":            {},
+		"PUT /api/admin/projects/{id}/settings":   {},
+		"GET /api/admin/history/tickets":          {},
+		"GET /api/admin/history/tickets/{id}":     {},
+		"GET /api/admin/history/batches":          {},
+		"GET /api/admin/history/batches/{id}":     {},
+		"GET /api/admin/history/summary":          {},
+		"GET /api/admin/history/export.csv":       {},
+	}
+)
+
+type logBodyCapture struct {
+	body      bytes.Buffer
+	total     int
+	truncated bool
+}
+
+func (capture *logBodyCapture) Write(value []byte) (int, error) {
+	capture.total += len(value)
+	remaining := maxLoggedBody - capture.body.Len()
+	if remaining <= 0 {
+		if len(value) > 0 {
+			capture.truncated = true
+		}
+		return len(value), nil
+	}
+	toCopy := min(remaining, len(value))
+	if toCopy > 0 {
+		_, _ = capture.body.Write(value[:toCopy])
+	}
+	if toCopy < len(value) {
+		capture.truncated = true
+	}
+	return len(value), nil
+}
+
+type logCaptureReadCloser struct {
+	io.ReadCloser
+	capture *logBodyCapture
+}
+
+func (reader *logCaptureReadCloser) Read(value []byte) (int, error) {
+	n, err := reader.ReadCloser.Read(value)
+	if n > 0 {
+		_, _ = reader.capture.Write(value[:n])
+	}
+	return n, err
+}
+
+func shouldCaptureLogBody(r *http.Request) bool {
+	if !strings.HasPrefix(r.URL.Path, "/api/") {
+		return false
+	}
+	return r.URL.Path != "/api/events" && r.URL.Path != "/api/admin/history/export.csv"
+}
+
+func isImportantLogRoute(r *http.Request) bool {
+	_, ok := importantLogRoutes[logRoutePattern(r)]
+	return ok
+}
+
+func logRoutePattern(r *http.Request) string {
+	if route := strings.TrimSpace(r.Pattern); route != "" {
+		return route
+	}
+	return r.Method + " " + r.URL.Path
+}
+
+func logPath(r *http.Request) string {
+	pattern := strings.TrimSpace(r.Pattern)
+	if pattern != "" {
+		if _, path, found := strings.Cut(pattern, " "); found {
+			return path
+		}
+		return pattern
+	}
+	switch {
+	case strings.HasPrefix(r.URL.Path, "/api/public/status/"):
+		return "/api/public/status/{token}"
+	case strings.HasPrefix(r.URL.Path, "/api/display/") && strings.HasSuffix(r.URL.Path, "/snapshot"):
+		return "/api/display/{token}/snapshot"
+	default:
+		return r.URL.Path
+	}
+}
+
+func requestLogDetails(r *http.Request, capture *logBodyCapture) map[string]any {
+	details := make(map[string]any)
+	pathParams := make(map[string]any)
+	if id := strings.TrimSpace(r.PathValue("id")); id != "" {
+		if validateUUID(id) == nil {
+			pathParams["id"] = id
+		} else {
+			pathParams["id"] = "[INVALID]"
+		}
+	}
+	if token := strings.TrimSpace(r.PathValue("token")); token != "" {
+		pathParams["token"] = redactedLogText
+	}
+	if len(pathParams) > 0 {
+		details["path_params"] = pathParams
+	}
+
+	if values := r.URL.Query(); len(values) > 0 {
+		query := make(map[string]any, len(values))
+		omitted := 0
+		for field, items := range values {
+			if !allowedLogQueryField(logRoutePattern(r), field) {
+				omitted += len(items)
+				continue
+			}
+			sanitized := make([]any, 0, len(items))
+			for _, item := range items {
+				sanitized = append(sanitized, sanitizeLogQueryValue(field, item))
+			}
+			query[field] = sanitized
+		}
+		if omitted > 0 {
+			query["_omitted_parameter_count"] = omitted
+		}
+		details["query"] = query
+	}
+	if strings.TrimSpace(r.Header.Get("Idempotency-Key")) != "" {
+		details["idempotency_key_present"] = true
+	}
+	appendCapturedLogBody(details, capture, r.Header.Get("Content-Type"), func(value any) (any, bool) {
+		return sanitizeRequestLogBody(r, capture.body.Bytes(), value)
+	})
+	if len(details) == 0 {
+		return nil
+	}
+	return details
+}
+
+func responseLogDetails(r *http.Request, recorder *statusRecorder) map[string]any {
+	if recorder.body == nil {
+		switch r.URL.Path {
+		case "/api/events":
+			return map[string]any{"body_omitted": "event_stream"}
+		case "/api/admin/history/export.csv":
+			return map[string]any{"body_omitted": "file_download"}
+		default:
+			return nil
+		}
+	}
+	details := make(map[string]any)
+	appendCapturedLogBody(details, recorder.body, recorder.Header().Get("Content-Type"), func(value any) (any, bool) {
+		return sanitizeLogValue("", value), true
+	})
+	if len(details) == 0 {
+		return nil
+	}
+	return details
+}
+
+func appendCapturedLogBody(
+	target map[string]any,
+	capture *logBodyCapture,
+	contentType string,
+	sanitize func(any) (any, bool),
+) {
+	if capture == nil || capture.total == 0 {
+		return
+	}
+	target["body_bytes"] = capture.total
+	if contentType != "" {
+		target["content_type"] = contentType
+	}
+	if capture.truncated {
+		target["body_truncated"] = true
+		return
+	}
+
+	var value any
+	if err := json.Unmarshal(capture.body.Bytes(), &value); err != nil {
+		target["body_omitted"] = "invalid_or_non_json"
+		return
+	}
+	sanitized, ok := sanitize(value)
+	if !ok {
+		target["body_omitted"] = "invalid_or_unsupported_request_json"
+		return
+	}
+	target["body"] = sanitized
+}
+
+func sanitizeRequestLogBody(r *http.Request, raw []byte, value any) (any, bool) {
+	schema := requestLogSchema(logRoutePattern(r))
+	if schema == nil {
+		return nil, false
+	}
+	decoder := json.NewDecoder(bytes.NewReader(raw))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(schema); err != nil {
+		return nil, false
+	}
+	if err := decoder.Decode(&struct{}{}); !errors.Is(err, io.EOF) {
+		return nil, false
+	}
+	return sanitizeLogValue("", value), true
+}
+
+func requestLogSchema(route string) any {
+	switch route {
+	case "POST /api/staff/auth/login", "POST /api/admin/auth/login":
+		return &loginRequest{}
+	case "POST /api/staff/projects/{id}/tickets", "POST /api/public/projects/{id}/tickets":
+		return &createTicketRequest{}
+	case "POST /api/staff/projects/{id}/call-next":
+		return &callNextRequest{}
+	case "POST /api/public/status/search", "POST /api/internal/status/search":
+		return &publicPhoneQueryRequest{}
+	case "POST /api/admin/users", "PUT /api/admin/users/{id}":
+		return &adminUserRequest{}
+	case "POST /api/admin/projects", "PUT /api/admin/projects/{id}":
+		return &adminProjectRequest{}
+	case "PUT /api/admin/projects/{id}/settings":
+		return &updateProjectSettingsRequest{}
+	default:
+		return nil
+	}
+}
+
+func allowedLogQueryField(route, field string) bool {
+	switch route {
+	case "GET /api/events":
+		return field == "project_id"
+	case "GET /api/admin/history/tickets":
+		return isLogQueryField(field, "from", "to", "project_id", "status", "query", "page", "page_size")
+	case "GET /api/admin/history/tickets/{id}":
+		return field == "reveal"
+	case "GET /api/admin/history/batches":
+		return isLogQueryField(field, "from", "to", "project_id", "status", "query", "page", "page_size")
+	case "GET /api/admin/history/summary":
+		return isLogQueryField(field, "from", "to", "project_id", "status", "query")
+	case "GET /api/admin/history/export.csv":
+		return isLogQueryField(field, "from", "to", "project_id", "status", "query", "include_personal", "confirm")
+	default:
+		return false
+	}
+}
+
+func isLogQueryField(field string, allowed ...string) bool {
+	for _, candidate := range allowed {
+		if field == candidate {
+			return true
+		}
+	}
+	return false
+}
+
+func sanitizeLogQueryValue(field, value string) any {
+	switch field {
+	case "project_id":
+		if validateUUID(value) != nil {
+			return "[INVALID]"
+		}
+		return value
+	case "from", "to":
+		if _, err := time.Parse("2006-01-02", value); err != nil {
+			return "[INVALID]"
+		}
+		return value
+	case "status":
+		status := strings.ToUpper(strings.TrimSpace(value))
+		if !historyTicketStatuses[status] && !historyBatchStatuses[status] {
+			return "[INVALID]"
+		}
+		return status
+	case "page", "page_size":
+		number, err := strconv.Atoi(value)
+		if err != nil || number < 1 {
+			return "[INVALID]"
+		}
+		return number
+	case "include_personal", "confirm", "reveal":
+		switch strings.ToLower(strings.TrimSpace(value)) {
+		case "true", "1":
+			return true
+		case "false", "0":
+			return false
+		default:
+			return "[INVALID]"
+		}
+	case "query":
+		if normalized, err := security.NormalizePhone(value); err == nil {
+			return maskPhoneForLog(normalized)
+		}
+		if value == "" {
+			return ""
+		}
+		return "[PRESENT]"
+	default:
+		return "[OMITTED]"
+	}
+}
+
+func sanitizeLogValue(field string, value any) any {
+	normalizedField := normalizeLogField(field)
+	switch {
+	case isPhoneLogField(normalizedField):
+		if strings.Contains(normalizedField, "hmac") ||
+			strings.Contains(normalizedField, "cipher") ||
+			strings.Contains(normalizedField, "nonce") {
+			return redactedLogText
+		}
+		phone, ok := value.(string)
+		if !ok {
+			return redactedLogText
+		}
+		return maskPhoneForLog(phone)
+	case normalizedField == "last_name" ||
+		normalizedField == "surname" ||
+		normalizedField == "honorific" ||
+		normalizedField == "public_url" ||
+		normalizedField == "status_path":
+		return redactedLogText
+	case isUserIdentifierLogField(normalizedField):
+		identifier, ok := value.(string)
+		if !ok {
+			return redactedLogText
+		}
+		return maskIdentifierForLog(identifier)
+	case normalizedField == "query" ||
+		normalizedField == "search" ||
+		normalizedField == "q":
+		query, ok := value.(string)
+		if ok {
+			if normalized, err := security.NormalizePhone(query); err == nil {
+				return maskPhoneForLog(normalized)
+			}
+		}
+	case normalizedField == "visitor_notice":
+		return "[OMITTED]"
+	case isCredentialLogField(normalizedField):
+		return redactedLogText
+	}
+
+	switch typed := value.(type) {
+	case map[string]any:
+		sanitized := make(map[string]any, len(typed))
+		for childField, childValue := range typed {
+			sanitized[childField] = sanitizeLogValue(childField, childValue)
+		}
+		return sanitized
+	case []any:
+		sanitized := make([]any, 0, len(typed))
+		for _, childValue := range typed {
+			sanitized = append(sanitized, sanitizeLogValue(field, childValue))
+		}
+		return sanitized
+	case string:
+		return sanitizeLogString(field, typed)
+	default:
+		return value
+	}
+}
+
+func sanitizeLogString(field string, value string) string {
+	if strings.Contains(value, "/visitor/") ||
+		strings.Contains(value, "/api/public/status/") ||
+		strings.Contains(value, "/api/display/") {
+		return redactedLogText
+	}
+	return phoneInLogTextPattern.ReplaceAllStringFunc(value, maskPhoneForLog)
+}
+
+func normalizeLogField(field string) string {
+	return strings.ToLower(strings.ReplaceAll(strings.TrimSpace(field), "-", "_"))
+}
+
+func isPhoneLogField(field string) bool {
+	return strings.Contains(field, "phone") ||
+		strings.Contains(field, "mobile") ||
+		strings.Contains(field, "contact") ||
+		field == "tel" ||
+		strings.HasSuffix(field, "_tel")
+}
+
+func isCredentialLogField(field string) bool {
+	return strings.Contains(field, "password") ||
+		strings.Contains(field, "passwd") ||
+		strings.Contains(field, "token") ||
+		strings.Contains(field, "cookie") ||
+		strings.Contains(field, "authorization") ||
+		strings.Contains(field, "secret") ||
+		strings.Contains(field, "ciphertext") ||
+		strings.HasSuffix(field, "_nonce") ||
+		strings.Contains(field, "hmac") ||
+		strings.HasSuffix(field, "_hash") ||
+		strings.Contains(field, "digest") ||
+		field == "key" ||
+		strings.HasSuffix(field, "_key") ||
+		field == "pin" ||
+		strings.Contains(field, "otp") ||
+		strings.Contains(field, "captcha") ||
+		strings.Contains(field, "verification_code")
+}
+
+func isUserIdentifierLogField(field string) bool {
+	switch field {
+	case "username", "display_name", "created_by", "created_by_name", "requested_by", "requested_by_name":
+		return true
+	default:
+		return strings.HasSuffix(field, "_username")
+	}
+}
+
+func maskPhoneForLog(value string) string {
+	digits := make([]byte, 0, len(value))
+	for i := 0; i < len(value); i++ {
+		if value[i] >= '0' && value[i] <= '9' {
+			digits = append(digits, value[i])
+		}
+	}
+	if len(digits) < 4 {
+		return redactedLogText
+	}
+	return "****" + string(digits[len(digits)-4:])
+}
+
+func maskIdentifierForLog(value string) string {
+	runes := []rune(strings.TrimSpace(value))
+	switch len(runes) {
+	case 0:
+		return ""
+	case 1:
+		return "***"
+	case 2:
+		return string(runes[0]) + "***"
+	default:
+		return string(runes[0]) + "***" + string(runes[len(runes)-1])
+	}
+}

server/internal/httpapi/public_integration_test.go

@@ -0,0 +1,133 @@
+package httpapi
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"calllinesystem/server/internal/config"
+	"calllinesystem/server/internal/database"
+	"calllinesystem/server/internal/model"
+	"calllinesystem/server/internal/security"
+
+	"github.com/google/uuid"
+)
+
+func TestPublicCreateTicketIgnoresDuplicateFromEndedSession(t *testing.T) {
+	dsn := strings.TrimSpace(os.Getenv("TEST_DATABASE_URL"))
+	if dsn == "" {
+		t.Skip("TEST_DATABASE_URL is not set")
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	logger := slog.New(slog.NewTextHandler(io.Discard, nil))
+	db, err := database.Open(ctx, dsn, logger)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer database.Close(db)
+	sqlDB, err := database.SQLDB(db)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := database.Migrate(ctx, sqlDB, logger); err != nil {
+		t.Fatal(err)
+	}
+
+	server, err := New(db, config.Config{
+		Environment:   "development",
+		EncryptionKey: bytes.Repeat([]byte{0x41}, 32),
+		PhoneHMACKey:  bytes.Repeat([]byte{0x42}, 32),
+	}, logger)
+	if err != nil {
+		t.Fatal(err)
+	}
+	now := time.Date(2026, 7, 28, 1, 0, 0, 0, time.UTC)
+	server.now = func() time.Time { return now }
+
+	var actor model.User
+	if err := db.Where("username = ?", model.PublicVisitorUsername).First(&actor).Error; err != nil {
+		t.Fatal(err)
+	}
+	projectID := uuid.NewString()
+	project := model.Project{
+		ID: projectID, Code: strings.ToUpper("PUB" + uuid.NewString()[:6]), Name: "Public duplicate regression",
+		Status: model.ProjectRunning, Timezone: "Asia/Shanghai", TicketPrefix: "A",
+		CallBatchSize: 5, CallMode: model.CallModeBoth,
+		MaxCallTicketCount: 100, DefaultCallPeopleCount: 1, MaxCallPeopleCount: 100,
+		MinPartySize: 1, MaxPartySize: 10, GracePeriodMinutes: 5,
+		ETAMode: model.ETAFixedBatch, AverageBatchIntervalSeconds: 60,
+		ContinuousRatePerMinute: 2, ETABufferMinutes: 5, ETAIntervalSeconds: 60,
+		VisitorNotice: "", DeviceSimulationMode: "DISABLED", CreatedAt: now, UpdatedAt: now,
+	}
+	if err := db.Create(&project).Error; err != nil {
+		t.Fatal(err)
+	}
+	endedAt := now.Add(-12 * time.Hour)
+	oldSession := model.QueueSession{
+		ID: uuid.NewString(), ProjectID: projectID, BusinessDate: now.AddDate(0, 0, -1),
+		Status: "ENDED", NextTicketNumber: 2, Revision: 1,
+		OpenedAt: now.Add(-24 * time.Hour), ClosedAt: &endedAt, CreatedAt: now.Add(-24 * time.Hour), UpdatedAt: endedAt,
+	}
+	currentSession := model.QueueSession{
+		ID: uuid.NewString(), ProjectID: projectID, BusinessDate: now,
+		Status: "RUNNING", NextTicketNumber: 1, Revision: 0,
+		OpenedAt: now, CreatedAt: now, UpdatedAt: now,
+	}
+	if err := db.Create(&oldSession).Error; err != nil {
+		t.Fatal(err)
+	}
+	if err := db.Create(&currentSession).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	phone := "13800138000"
+	phoneCiphertext, phoneNonce, err := server.cipher.Encrypt(phone, []byte("phone:"+projectID))
+	if err != nil {
+		t.Fatal(err)
+	}
+	phoneHMAC := server.cipher.Digest(phone)
+	oldTicket := model.QueueTicket{
+		ID: uuid.NewString(), ProjectID: projectID, QueueSessionID: oldSession.ID,
+		TicketNumber: 1, DisplayNumber: "00001", PartySize: 1,
+		PublicTokenHash: security.HashToken(uuid.NewString()),
+		PhoneCiphertext: phoneCiphertext, PhoneNonce: phoneNonce, PhoneHMAC: &phoneHMAC,
+		Honorific: "游客", Status: model.TicketWaiting, JoinedAt: oldSession.OpenedAt,
+		PersonalDataPurgeAt: now.Add(30 * 24 * time.Hour), CreatedBy: actor.ID,
+		CreatedAt: oldSession.OpenedAt, UpdatedAt: oldSession.OpenedAt,
+	}
+	if err := db.Create(&oldTicket).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	recorder := httptest.NewRecorder()
+	request := httptest.NewRequest(http.MethodPost, "/api/public/projects/"+projectID+"/tickets",
+		strings.NewReader(`{"phone":"13800138000","honorific":"游客","party_size":1,"allow_duplicate":false}`))
+	request.Header.Set("Idempotency-Key", "public-ended-session-"+uuid.NewString())
+
+	server.Handler().ServeHTTP(recorder, request)
+
+	if recorder.Code != http.StatusCreated {
+		t.Fatalf("status = %d, want 201; body = %s", recorder.Code, recorder.Body.String())
+	}
+
+	duplicateRecorder := httptest.NewRecorder()
+	duplicateRequest := httptest.NewRequest(http.MethodPost, "/api/public/projects/"+projectID+"/tickets",
+		strings.NewReader(`{"phone":"13800138000","honorific":"游客","party_size":1,"allow_duplicate":false}`))
+	duplicateRequest.Header.Set("Idempotency-Key", "public-current-session-"+uuid.NewString())
+
+	server.Handler().ServeHTTP(duplicateRecorder, duplicateRequest)
+
+	if duplicateRecorder.Code != http.StatusConflict || !strings.Contains(duplicateRecorder.Body.String(), `"code":"DUPLICATE_PHONE"`) {
+		t.Fatalf("current-session duplicate status = %d, want 409 DUPLICATE_PHONE; body = %s",
+			duplicateRecorder.Code, duplicateRecorder.Body.String())
+	}
+}

server/internal/httpapi/server.go

@@ -104,7 +104,7 @@ func (s *Server) Handler() http.Handler {
 	mux.Handle("GET /api/admin/history/batches/{id}", s.requireAdmin(http.HandlerFunc(s.adminHistoryBatch)))
 	mux.Handle("GET /api/admin/history/summary", s.requireAdmin(http.HandlerFunc(s.adminHistorySummary)))
 	mux.Handle("GET /api/admin/history/export.csv", s.requireAdmin(http.HandlerFunc(s.adminHistoryExport)))
-	return s.recoverPanic(s.requestID(s.accessLog(s.securityHeaders(mux))))
+	return s.requestID(s.accessLog(s.recoverPanic(s.securityHeaders(mux))))
 }
 
 func (s *Server) health(w http.ResponseWriter, _ *http.Request) {
@@ -144,32 +144,84 @@ func (s *Server) requestID(next http.Handler) http.Handler {
 
 type statusRecorder struct {
 	http.ResponseWriter
-	status int
+	status      int
+	wroteHeader bool
+	body        *logBodyCapture
 }
 
 func (r *statusRecorder) WriteHeader(status int) {
+	if r.wroteHeader {
+		return
+	}
 	r.status = status
+	r.wroteHeader = true
 	r.ResponseWriter.WriteHeader(status)
 }
 
-func (r *statusRecorder) Flush() {
+func (r *statusRecorder) Write(value []byte) (int, error) {
-	if flusher, ok := r.ResponseWriter.(http.Flusher); ok {
+	if !r.wroteHeader {
-		flusher.Flush()
+		r.WriteHeader(http.StatusOK)
 	}
+	n, err := r.ResponseWriter.Write(value)
+	if n > 0 && r.body != nil {
+		_, _ = r.body.Write(value[:n])
+	}
+	return n, err
+}
+
+func (r *statusRecorder) Unwrap() http.ResponseWriter {
+	return r.ResponseWriter
+}
+
+func (r *statusRecorder) responseStarted() bool {
+	return r.wroteHeader
+}
+
+type flushStatusRecorder struct {
+	*statusRecorder
+}
+
+func (r *flushStatusRecorder) Flush() {
+	if !r.wroteHeader {
+		r.WriteHeader(http.StatusOK)
+	}
+	r.ResponseWriter.(http.Flusher).Flush()
 }
 
 func (s *Server) accessLog(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		started := s.now()
-		recorder := &statusRecorder{ResponseWriter: w, status: http.StatusOK}
+		var requestBody *logBodyCapture
-		next.ServeHTTP(recorder, r)
+		var responseBody *logBodyCapture
-		s.logger.Info("http request",
+		if shouldCaptureLogBody(r) {
+			requestBody = &logBodyCapture{}
+			responseBody = &logBodyCapture{}
+			if r.Body != nil {
+				r.Body = &logCaptureReadCloser{ReadCloser: r.Body, capture: requestBody}
+			}
+		}
+		recorder := &statusRecorder{ResponseWriter: w, status: http.StatusOK, body: responseBody}
+		var responseWriter http.ResponseWriter = recorder
+		if _, ok := w.(http.Flusher); ok {
+			responseWriter = &flushStatusRecorder{statusRecorder: recorder}
+		}
+		next.ServeHTTP(responseWriter, r)
+		attributes := []any{
 			"request_id", requestID(r.Context()),
 			"method", r.Method,
-			"path", r.URL.Path,
+			"path", logPath(r),
 			"status", recorder.status,
 			"duration_ms", time.Since(started).Milliseconds(),
-		)
+		}
+		if isImportantLogRoute(r) {
+			if request := requestLogDetails(r, requestBody); request != nil {
+				attributes = append(attributes, "request", request)
+			}
+			if response := responseLogDetails(r, recorder); response != nil {
+				attributes = append(attributes, "response", response)
+			}
+		}
+		s.logger.Info("http request", attributes...)
 	})
 }
 
@@ -187,7 +239,19 @@ func (s *Server) recoverPanic(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		defer func() {
 			if recovered := recover(); recovered != nil {
-				s.logger.Error("panic recovered", "request_id", requestID(r.Context()), "error", recovered, "stack", string(debug.Stack()))
+				responseStarted := false
+				if state, ok := w.(interface{ responseStarted() bool }); ok {
+					responseStarted = state.responseStarted()
+				}
+				s.logger.Error("panic recovered",
+					"request_id", requestID(r.Context()),
+					"error", recovered,
+					"response_started", responseStarted,
+					"stack", string(debug.Stack()),
+				)
+				if responseStarted {
+					return
+				}
 				writeError(w, fmt.Errorf("panic: %v", recovered))
 			}
 		}()

server/internal/httpapi/server_logging_test.go

@@ -0,0 +1,553 @@
+package httpapi
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestAccessLogCapturesSanitizedJSONWithoutChangingExchange(t *testing.T) {
+	const (
+		phone          = "13912345678"
+		lastName       = "林"
+		publicToken    = "public-token-sentinel"
+		idempotencyKey = "idempotency-key-sentinel"
+		projectID      = "11111111-1111-4111-8111-111111111111"
+		username       = "operator-sentinel"
+		uuidUsername   = "22222222-2222-4222-8222-222222222222"
+	)
+	requestBody := `{"phone":"` + phone + `","last_name":"` + lastName +
+		`","honorific":"先生","party_size":2,"allow_duplicate":false}`
+	responseBody := `{"ticket":{"id":"ticket-1","phone":"` + phone + `","last_name":"` + lastName +
+		`","honorific":"先生","status":"WAITING"},"public_token":"` + publicToken +
+		`","public_url":"/visitor/` + publicToken + `","status_path":"/api/public/status/` + publicToken +
+		`","user":{"username":"` + username + `","display_name":"` + username +
+		`"},"history":{"created_by":"` + username + `","requested_by":"` + uuidUsername +
+		`","requested_by_name":"` + username + `"},"revision":7}`
+
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		got, err := io.ReadAll(r.Body)
+		if err != nil {
+			t.Fatalf("read request body: %v", err)
+		}
+		if string(got) != requestBody {
+			t.Fatalf("handler request body changed: got %q", got)
+		}
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		w.WriteHeader(http.StatusCreated)
+		if _, err := io.WriteString(w, responseBody); err != nil {
+			t.Fatalf("write response: %v", err)
+		}
+	})))
+
+	request := httptest.NewRequest(http.MethodPost,
+		"/api/public/projects/"+projectID+"/tickets",
+		strings.NewReader(requestBody))
+	request.Pattern = "POST /api/public/projects/{id}/tickets"
+	request.SetPathValue("id", projectID)
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-Request-ID", "request-123")
+	request.Header.Set("Idempotency-Key", idempotencyKey)
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	if recorder.Code != http.StatusCreated {
+		t.Fatalf("status = %d, want 201", recorder.Code)
+	}
+	if recorder.Body.String() != responseBody {
+		t.Fatalf("response body changed: got %q", recorder.Body.String())
+	}
+
+	entry := logEntryByMessage(t, logs.Bytes(), "http request")
+	if entry["path"] != "/api/public/projects/{id}/tickets" {
+		t.Fatalf("logged path = %#v", entry["path"])
+	}
+	requestLog := mustLogObject(t, entry["request"], "request")
+	if requestLog["idempotency_key_present"] != true {
+		t.Fatalf("idempotency presence = %#v", requestLog["idempotency_key_present"])
+	}
+	pathParams := mustLogObject(t, requestLog["path_params"], "request.path_params")
+	if pathParams["id"] != projectID {
+		t.Fatalf("path id = %#v", pathParams["id"])
+	}
+	requestJSON := mustLogObject(t, requestLog["body"], "request.body")
+	if requestJSON["phone"] != "****5678" ||
+		requestJSON["last_name"] != "[REDACTED]" ||
+		requestJSON["honorific"] != "[REDACTED]" {
+		t.Fatalf("request body was not sanitized: %#v", requestJSON)
+	}
+
+	responseLog := mustLogObject(t, entry["response"], "response")
+	responseJSON := mustLogObject(t, responseLog["body"], "response.body")
+	ticket := mustLogObject(t, responseJSON["ticket"], "response.body.ticket")
+	if ticket["phone"] != "****5678" || ticket["last_name"] != "[REDACTED]" || ticket["honorific"] != "[REDACTED]" {
+		t.Fatalf("response ticket was not sanitized: %#v", ticket)
+	}
+	for _, field := range []string{"public_token", "public_url", "status_path"} {
+		if responseJSON[field] != "[REDACTED]" {
+			t.Fatalf("%s = %#v, want redacted", field, responseJSON[field])
+		}
+	}
+	user := mustLogObject(t, responseJSON["user"], "response.body.user")
+	history := mustLogObject(t, responseJSON["history"], "response.body.history")
+	if user["username"] != "o***l" || user["display_name"] != "o***l" ||
+		history["created_by"] != "o***l" || history["requested_by"] != "2***2" ||
+		history["requested_by_name"] != "o***l" {
+		t.Fatalf("user identifiers were not masked: user=%#v history=%#v", user, history)
+	}
+
+	logText := logs.String()
+	for _, secret := range []string{phone, lastName, publicToken, idempotencyKey, username, uuidUsername} {
+		if strings.Contains(logText, secret) {
+			t.Fatalf("log leaked secret %q: %s", secret, logText)
+		}
+	}
+}
+
+func TestAccessLogRedactsValidLoginCredentials(t *testing.T) {
+	const (
+		username = "operator-sentinel"
+		password = "password-sentinel"
+	)
+	requestBody := `{"username":"` + username + `","password":"` + password + `"}`
+	responseBody := `{"user":{"id":"user-1","username":"` + username + `","display_name":"` + username + `","role":"STAFF"}}`
+
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		got, err := io.ReadAll(r.Body)
+		if err != nil || string(got) != requestBody {
+			t.Fatalf("login body changed: %q, err=%v", got, err)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = io.WriteString(w, responseBody)
+	})))
+	request := httptest.NewRequest(http.MethodPost, "/api/staff/auth/login", strings.NewReader(requestBody))
+	request.Pattern = "POST /api/staff/auth/login"
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-Request-ID", "login-request")
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	entry := logEntryByMessage(t, logs.Bytes(), "http request")
+	requestJSON := mustLogObject(t, mustLogObject(t, entry["request"], "request")["body"], "request.body")
+	if requestJSON["username"] != "o***l" || requestJSON["password"] != "[REDACTED]" {
+		t.Fatalf("login request was not sanitized: %#v", requestJSON)
+	}
+	if strings.Contains(logs.String(), username) || strings.Contains(logs.String(), password) {
+		t.Fatalf("login credentials leaked into log: %s", logs.String())
+	}
+}
+
+func TestAccessLogOmitsUnknownOrInvalidRequestFields(t *testing.T) {
+	const (
+		password     = "password-sentinel"
+		privateNote  = "private-note-sentinel"
+		camelSurname = "林"
+		numericPhone = "13787654321"
+	)
+	requestBody := `{"username":"operator","password":"` + password + `","note":"` + privateNote +
+		`","lastName":"` + camelSurname + `","phone":` + numericPhone + `}`
+
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		_, _ = io.ReadAll(r.Body)
+		writeError(w, &apiError{Status: http.StatusBadRequest, Code: "INVALID_JSON", Message: "请求内容格式不正确"})
+	})))
+	request := httptest.NewRequest(http.MethodPost, "/api/staff/auth/login", strings.NewReader(requestBody))
+	request.Pattern = "POST /api/staff/auth/login"
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-Request-ID", "invalid-request")
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	entry := logEntryByMessage(t, logs.Bytes(), "http request")
+	requestLog := mustLogObject(t, entry["request"], "request")
+	if requestLog["body_omitted"] != "invalid_or_unsupported_request_json" {
+		t.Fatalf("invalid body omission = %#v", requestLog)
+	}
+	if _, ok := requestLog["body"]; ok {
+		t.Fatalf("invalid request body was logged: %#v", requestLog)
+	}
+	for _, secret := range []string{password, privateNote, camelSurname, numericPhone} {
+		if strings.Contains(logs.String(), secret) {
+			t.Fatalf("invalid request leaked %q: %s", secret, logs.String())
+		}
+	}
+}
+
+func TestAccessLogOnlyLogsAllowedHistoryQueryParameters(t *testing.T) {
+	const (
+		phone         = "+1 (202) 555-1234"
+		unknownSecret = "unknown-query-sentinel"
+	)
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		writeJSON(w, http.StatusOK, map[string]any{"tickets": []any{}})
+	})))
+	request := httptest.NewRequest(http.MethodGet,
+		"/api/admin/history/tickets?from=2026-07-01&to=2026-07-28&query=%2B1+%28202%29+555-1234&page=2&unknown="+unknownSecret,
+		nil)
+	request.Pattern = "GET /api/admin/history/tickets"
+	request.Header.Set("X-Request-ID", "query-request")
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	entry := logEntryByMessage(t, logs.Bytes(), "http request")
+	query := mustLogObject(t, mustLogObject(t, entry["request"], "request")["query"], "request.query")
+	if values := mustLogArray(t, query["query"], "request.query.query"); values[0] != "****1234" {
+		t.Fatalf("history phone query = %#v", values[0])
+	}
+	if query["_omitted_parameter_count"] != float64(1) {
+		t.Fatalf("omitted query count = %#v", query["_omitted_parameter_count"])
+	}
+	if strings.Contains(logs.String(), phone) || strings.Contains(logs.String(), unknownSecret) {
+		t.Fatalf("history query leaked into log: %s", logs.String())
+	}
+}
+
+func TestAccessLogTruncatesLargeBodiesWithoutChangingExchange(t *testing.T) {
+	requestBody := `{"visitor_notice":"REQUEST-LARGE-SENTINEL-` + strings.Repeat("x", 128<<10) + `"}`
+	responseBody := `{"note":"RESPONSE-LARGE-SENTINEL-` + strings.Repeat("y", 128<<10) + `"}`
+
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		got, err := io.ReadAll(r.Body)
+		if err != nil {
+			t.Fatalf("read request body: %v", err)
+		}
+		if string(got) != requestBody {
+			t.Fatalf("handler received %d bytes, want %d", len(got), len(requestBody))
+		}
+		w.Header().Set("Content-Type", "application/json")
+		if _, err := io.WriteString(w, responseBody); err != nil {
+			t.Fatalf("write response: %v", err)
+		}
+	})))
+
+	request := httptest.NewRequest(http.MethodPut, "/api/admin/projects/11111111-1111-4111-8111-111111111111/settings", strings.NewReader(requestBody))
+	request.Pattern = "PUT /api/admin/projects/{id}/settings"
+	request.SetPathValue("id", "11111111-1111-4111-8111-111111111111")
+	request.Header.Set("Content-Type", "application/json")
+	request.Header.Set("X-Request-ID", "request-large")
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	if recorder.Body.String() != responseBody {
+		t.Fatalf("client received %d bytes, want %d", recorder.Body.Len(), len(responseBody))
+	}
+	entry := logEntryByMessage(t, logs.Bytes(), "http request")
+	requestLog := mustLogObject(t, entry["request"], "request")
+	responseLog := mustLogObject(t, entry["response"], "response")
+	if requestLog["body_truncated"] != true || responseLog["body_truncated"] != true {
+		t.Fatalf("truncation flags missing: request=%#v response=%#v", requestLog, responseLog)
+	}
+	if _, ok := requestLog["body"]; ok {
+		t.Fatalf("truncated request body should not be logged: %#v", requestLog)
+	}
+	if _, ok := responseLog["body"]; ok {
+		t.Fatalf("truncated response body should not be logged: %#v", responseLog)
+	}
+	if strings.Contains(logs.String(), "REQUEST-LARGE-SENTINEL") ||
+		strings.Contains(logs.String(), "RESPONSE-LARGE-SENTINEL") {
+		t.Fatalf("large body content leaked into log")
+	}
+}
+
+func TestStatusRecorderKeepsFirstWireStatus(t *testing.T) {
+	recorder := httptest.NewRecorder()
+	status := &statusRecorder{ResponseWriter: recorder, status: http.StatusOK}
+	status.WriteHeader(http.StatusCreated)
+	status.WriteHeader(http.StatusInternalServerError)
+
+	if status.status != http.StatusCreated {
+		t.Fatalf("recorded status = %d, want 201", status.status)
+	}
+	if recorder.Code != http.StatusCreated {
+		t.Fatalf("wire status = %d, want 201", recorder.Code)
+	}
+}
+
+func TestAccessLogDoesNotAdvertiseUnsupportedFlusher(t *testing.T) {
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		if _, ok := w.(http.Flusher); ok {
+			t.Fatal("wrapped writer advertised unsupported http.Flusher")
+		}
+		writeJSON(w, http.StatusOK, map[string]any{"status": "ok"})
+	})))
+	request := httptest.NewRequest(http.MethodGet, "/api/public/projects", nil)
+	request.Pattern = "GET /api/public/projects"
+	request.Header.Set("X-Request-ID", "writer-request")
+	recorder := &nonFlushingResponseWriter{header: make(http.Header)}
+
+	handler.ServeHTTP(recorder, request)
+
+	if recorder.status != http.StatusOK || recorder.body.String() != "{\"status\":\"ok\"}\n" {
+		t.Fatalf("wrapped response changed: status=%d body=%q", recorder.status, recorder.body.String())
+	}
+}
+
+func TestRecoveredPanicHasRequestIDAndAccessLog(t *testing.T) {
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	request := httptest.NewRequest(http.MethodGet, "/readyz", nil)
+	request.Header.Set("X-Request-ID", "panic-request")
+	recorder := httptest.NewRecorder()
+
+	server.Handler().ServeHTTP(recorder, request)
+
+	if recorder.Code != http.StatusInternalServerError {
+		t.Fatalf("panic status = %d, want 500", recorder.Code)
+	}
+	panicEntry := logEntryByMessage(t, logs.Bytes(), "panic recovered")
+	accessEntry := logEntryByMessage(t, logs.Bytes(), "http request")
+	if panicEntry["request_id"] != "panic-request" || accessEntry["request_id"] != "panic-request" {
+		t.Fatalf("request ids: panic=%#v access=%#v", panicEntry["request_id"], accessEntry["request_id"])
+	}
+	if accessEntry["status"] != float64(http.StatusInternalServerError) {
+		t.Fatalf("access status = %#v, want 500", accessEntry["status"])
+	}
+}
+
+func TestRecoveredPanicAfterWriteDoesNotAppendErrorBody(t *testing.T) {
+	const responseBody = `{"status":"started"}`
+	var logs bytes.Buffer
+	server := &Server{
+		logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+		now:    time.Now,
+	}
+	handler := server.requestID(server.accessLog(server.recoverPanic(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		_, _ = io.WriteString(w, responseBody)
+		panic("panic-after-write")
+	}))))
+	request := httptest.NewRequest(http.MethodGet, "/api/public/projects", nil)
+	request.Pattern = "GET /api/public/projects"
+	request.Header.Set("X-Request-ID", "panic-after-write")
+	recorder := httptest.NewRecorder()
+
+	handler.ServeHTTP(recorder, request)
+
+	if recorder.Code != http.StatusOK || recorder.Body.String() != responseBody {
+		t.Fatalf("panic changed committed response: status=%d body=%q", recorder.Code, recorder.Body.String())
+	}
+	panicEntry := logEntryByMessage(t, logs.Bytes(), "panic recovered")
+	accessEntry := logEntryByMessage(t, logs.Bytes(), "http request")
+	if panicEntry["response_started"] != true || accessEntry["status"] != float64(http.StatusOK) {
+		t.Fatalf("panic/access metadata: panic=%#v access=%#v", panicEntry, accessEntry)
+	}
+}
+
+func TestHandlerLogsTokenRoutesUsingTemplates(t *testing.T) {
+	tests := []struct {
+		name     string
+		path     string
+		wantPath string
+	}{
+		{
+			name:     "visitor status token",
+			path:     "/api/public/status/visitor-token-sentinel",
+			wantPath: "/api/public/status/{token}",
+		},
+		{
+			name:     "display token",
+			path:     "/api/display/display-token-sentinel/snapshot",
+			wantPath: "/api/display/{token}/snapshot",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			var logs bytes.Buffer
+			server := &Server{
+				logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+				now:    time.Now,
+			}
+			request := httptest.NewRequest(http.MethodGet, test.path, nil)
+			request.Header.Set("X-Request-ID", "token-request")
+			recorder := httptest.NewRecorder()
+
+			server.Handler().ServeHTTP(recorder, request)
+
+			entry := logEntryByMessage(t, logs.Bytes(), "http request")
+			if entry["path"] != test.wantPath {
+				t.Fatalf("path = %#v, want %q", entry["path"], test.wantPath)
+			}
+			if strings.Contains(logs.String(), "token-sentinel") {
+				t.Fatalf("token path leaked into log: %s", logs.String())
+			}
+		})
+	}
+}
+
+func TestAccessLogOmitsEventStreamAndCSVResponseBodies(t *testing.T) {
+	tests := []struct {
+		name        string
+		method      string
+		path        string
+		pattern     string
+		contentType string
+		body        string
+		wantReason  string
+		flush       bool
+	}{
+		{
+			name:        "event stream",
+			method:      http.MethodGet,
+			path:        "/api/events?project_id=project-1",
+			pattern:     "GET /api/events",
+			contentType: "text/event-stream",
+			body:        "data: STREAM-SENTINEL\n\n",
+			wantReason:  "event_stream",
+			flush:       true,
+		},
+		{
+			name:        "personal CSV export",
+			method:      http.MethodGet,
+			path:        "/api/admin/history/export.csv?include_personal=true&confirm=true",
+			pattern:     "GET /api/admin/history/export.csv",
+			contentType: "text/csv; charset=utf-8",
+			body:        "phone,last_name\n13912345678,林\n",
+			wantReason:  "file_download",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			var logs bytes.Buffer
+			server := &Server{
+				logger: slog.New(slog.NewJSONHandler(&logs, nil)),
+				now:    time.Now,
+			}
+			handler := server.requestID(server.accessLog(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+				w.Header().Set("Content-Type", test.contentType)
+				if _, err := io.WriteString(w, test.body); err != nil {
+					t.Fatalf("write response: %v", err)
+				}
+				if test.flush {
+					flusher, ok := w.(http.Flusher)
+					if !ok {
+						t.Fatal("response writer lost http.Flusher")
+					}
+					flusher.Flush()
+				}
+			})))
+			request := httptest.NewRequest(test.method, test.path, nil)
+			request.Pattern = test.pattern
+			request.Header.Set("X-Request-ID", "omit-request")
+			recorder := httptest.NewRecorder()
+
+			handler.ServeHTTP(recorder, request)
+
+			if recorder.Body.String() != test.body {
+				t.Fatalf("response body changed: got %q", recorder.Body.String())
+			}
+			entry := logEntryByMessage(t, logs.Bytes(), "http request")
+			responseLog := mustLogObject(t, entry["response"], "response")
+			if responseLog["body_omitted"] != test.wantReason {
+				t.Fatalf("body omission = %#v, want %q", responseLog["body_omitted"], test.wantReason)
+			}
+			if strings.Contains(logs.String(), "STREAM-SENTINEL") ||
+				strings.Contains(logs.String(), "13912345678") ||
+				strings.Contains(logs.String(), "林") {
+				t.Fatalf("omitted response body leaked into log: %s", logs.String())
+			}
+		})
+	}
+}
+
+func logEntryByMessage(t *testing.T, content []byte, message string) map[string]any {
+	t.Helper()
+	for _, line := range bytes.Split(bytes.TrimSpace(content), []byte("\n")) {
+		var entry map[string]any
+		if err := json.Unmarshal(line, &entry); err != nil {
+			t.Fatalf("decode log entry: %v\n%s", err, line)
+		}
+		if entry["msg"] == message {
+			return entry
+		}
+	}
+	t.Fatalf("log message %q not found:\n%s", message, content)
+	return nil
+}
+
+func mustLogObject(t *testing.T, value any, name string) map[string]any {
+	t.Helper()
+	object, ok := value.(map[string]any)
+	if !ok {
+		t.Fatalf("%s = %#v, want object", name, value)
+	}
+	return object
+}
+
+func mustLogArray(t *testing.T, value any, name string) []any {
+	t.Helper()
+	array, ok := value.([]any)
+	if !ok {
+		t.Fatalf("%s = %#v, want array", name, value)
+	}
+	return array
+}
+
+type nonFlushingResponseWriter struct {
+	header http.Header
+	body   bytes.Buffer
+	status int
+}
+
+func (writer *nonFlushingResponseWriter) Header() http.Header {
+	return writer.header
+}
+
+func (writer *nonFlushingResponseWriter) WriteHeader(status int) {
+	if writer.status == 0 {
+		writer.status = status
+	}
+}
+
+func (writer *nonFlushingResponseWriter) Write(value []byte) (int, error) {
+	if writer.status == 0 {
+		writer.status = http.StatusOK
+	}
+	return writer.body.Write(value)
+}

server/internal/httpapi/staff.go

@@ -298,7 +298,7 @@ func (s *Server) createTicketForActor(w http.ResponseWriter, r *http.Request, ac
 		phoneDigest := s.cipher.Digest(phone)
 		var duplicates []model.QueueTicket
 		if err := tx.Select("id", "display_number", "status").
-			Where("project_id = ? AND phone_hmac = ? AND status IN ?", projectID, phoneDigest,
+			Where("project_id = ? AND queue_session_id = ? AND phone_hmac = ? AND status IN ?", projectID, session.ID, phoneDigest,
 				[]string{model.TicketWaiting, model.TicketCalled, model.TicketArrived}).
 			Order("joined_at ASC").Find(&duplicates).Error; err != nil {
 			return err

task_plan.md

@@ -516,3 +516,18 @@ Phase 42（运营统计模块标题区呼吸空间优化）
 - [x] 补齐定时、手动关闭、文案和滚动布局回归测试
 - [x] 通过前端测试、类型检查、生产构建和视觉验收
 - **Status:** complete
+
+### Phase 43: 关键接口结构化出入参日志（2026-07-28）
+- [x] 盘点关键 API、既有访问日志与敏感字段
+- [x] 为统一日志中间件补充请求/响应捕获回归测试
+- [x] 实现 JSON 出入参、查询参数脱敏与日志大小限制
+- [x] 排除流式事件、文件导出和健康检查等不适合记录正文的接口
+- [x] 完成 Go 全量测试、静态检查与隐私泄漏扫描
+- **Status:** complete
+
+#### Errors Encountered
+| Error | Attempt | Resolution |
+|---|---:|---|
+| PowerShell 中复杂 `rg` 正则的双引号终止符与字符类转义失败 | 2 | 拆成单引号、小范围查询后完成敏感字段盘点 |
+| 新增日志回归首次运行按预期失败：原始路径泄露、无正文、状态码被覆盖、panic 无访问日志 | 1 | 实现模板路径、旁路捕获、首次状态保护并调整中间件顺序，聚焦测试转绿 |
+| Windows Go 环境关闭 CGO，`go test -race` 无法启动 | 1 | 不重复同一失败；使用全量测试、聚焦并发安全审查、`go vet` 和构建完成本轮验证 |