chore: 合入 stash Ops hardening 与 migration 000041

Ask/catalog 权限与审计加固、量表读权限统一，以及未提交的 ops hardening 变更。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/internal/service/admin/ask_ops.go

@@ -2,6 +2,7 @@ package admin
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 
 	"github.com/google/uuid"
@@ -10,7 +11,7 @@ import (
 	"github.com/yuxingu/digital-psychology/apps/api/internal/repository"
 )
 
-// AskSessionDetail is AskSessionView plus messages.
+// AskSessionDetail is AskSessionView plus messages (transcript).
 type AskSessionDetail struct {
 	repository.AskSessionView
 	Messages []repository.AskMessageView `json:"messages"`
@@ -30,8 +31,20 @@ func (s *Service) ListAskSessions(ctx context.Context, userID *uuid.UUID, limit,
 	return items, nil
 }
 
-// GetAskSessionDetail loads meta + messages.
-func (s *Service) GetAskSessionDetail(ctx context.Context, threadID uuid.UUID) (*AskSessionDetail, error) {
+// GetAskSessionMeta loads thread meta without message bodies.
+func (s *Service) GetAskSessionMeta(ctx context.Context, threadID uuid.UUID) (*repository.AskSessionView, error) {
+	view, err := s.Repo.GetAskSession(ctx, threadID)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrAskThreadNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+	return view, nil
+}
+
+// GetAskSessionTranscript loads message bodies and audits access.
+func (s *Service) GetAskSessionTranscript(ctx context.Context, adminID, threadID uuid.UUID) (*AskSessionDetail, error) {
 	view, err := s.Repo.GetAskSession(ctx, threadID)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return nil, ErrAskThreadNotFound
@@ -46,5 +59,10 @@ func (s *Service) GetAskSessionDetail(ctx context.Context, threadID uuid.UUID) (
 	if msgs == nil {
 		msgs = []repository.AskMessageView{}
 	}
+	meta, _ := json.Marshal(map[string]any{
+		"message_count": len(msgs),
+		"user_id":       view.UserID.String(),
+	})
+	_ = s.Repo.InsertAudit(ctx, adminID, "ask.transcript.read", "ask_thread", threadID.String(), meta)
 	return &AskSessionDetail{AskSessionView: *view, Messages: msgs}, nil
 }