docs: add false completion prevention rules and fix swagger gaps

Changes:
- Add FALSE_COMPLETION_PREVENTION.md documenting false completion patterns
- Add integrity check script (scripts/check-integrity.sh) for automated verification
- Fix swagger annotation gaps in 3 handlers (+10 annotations):
  - password_reset_handler.go: +4 annotations
  - totp_handler.go: +4 annotations
  - log_handler.go: +2 annotations
- Define IntegrationRedisSuite type for Redis integration tests
- Update QUALITY_STANDARD.md with swagger completeness and response format requirements
- Update PROJECT_EXPERIENCE_SUMMARY.md with new learnings on false completion

Integrity check now validates:
- Swagger annotation completeness per handler
- Response format uniformity (with OAuth whitelist)
- Test infrastructure type definitions
- Repository test coverage

internal/repository/integration_redis_suite.go

@@ -0,0 +1,61 @@
+//go:build integration
+
+package repository
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/suite"
+)
+
+// IntegrationRedisSuite Redis 集成测试基础套件
+// 所有 Redis 集成测试应嵌入此套件
+type IntegrationRedisSuite struct {
+	suite.Suite
+	rdb  *redis.Client
+	ctx  context.Context
+	host string
+	port string
+}
+
+// SetupSuite 连接 Redis
+func (s *IntegrationRedisSuite) SetupSuite() {
+	s.ctx = context.Background()
+	s.host = "localhost"
+	s.port = "6379"
+
+	s.rdb = redis.NewClient(&redis.Options{
+		Addr:         s.host + ":" + s.port,
+		DialTimeout:  5 * time.Second,
+		ReadTimeout:  3 * time.Second,
+		WriteTimeout: 3 * time.Second,
+		PoolSize:     10,
+	})
+}
+
+// SetupTest 每个测试前清空数据库
+func (s *IntegrationRedisSuite) SetupTest() {
+	if s.rdb == nil {
+		s.T().Skip("Redis not available, skipping integration test")
+	}
+	s.rdb.FlushDB(s.ctx)
+}
+
+// TearDownSuite 关闭连接
+func (s *IntegrationRedisSuite) TearDownSuite() {
+	if s.rdb != nil {
+		s.rdb.Close()
+	}
+}
+
+// Redis 返回的辅助方法
+func (s *IntegrationRedisSuite) Redis() *redis.Client {
+	return s.rdb
+}
+
+func (s *IntegrationRedisSuite) Context() context.Context {
+	return s.ctx
+}