feat(core): sync framework security hardening and accessibility improvements

- add util.Go with panic recovery for background goroutines
- add util.EscapeLike and explicit ESCAPE clause for SQL LIKE queries
- add DummyCheckPassword and subtle.ConstantTimeCompare against timing attacks
- enforce session ID rotation upon login/oauth callback to prevent session fixation
- add sliding window login failure rate limiting and oauth state rate limiting
- fix redis client capture race in pubsub listeners and wait on stop channel
- adjust global --primary to oklch(51.1% 0.262 276.966) for WCAG AA contrast
- fix semantic heading levels and missing aria-labels across UI components
- document security, concurrency, and a11y standards in AGENTS.md

internal/repository/analytics/access_log.go

@@ -12,6 +12,7 @@ import (
 
 	"github.com/Rain-kl/Wavelet/internal/infra/persistence"
 	analyticsmodel "github.com/Rain-kl/Wavelet/internal/model/analytics"
+	"github.com/Rain-kl/Wavelet/pkg/util"
 	"gorm.io/gorm"
 )
 
@@ -108,7 +109,7 @@ func applyFilter(query *gorm.DB, filter AccessLogFilter) *gorm.DB {
 		query = query.Where("user_id IN ?", filter.UserIDs)
 	}
 	if filter.Path != "" {
-		query = query.Where("path LIKE ?", "%"+filter.Path+"%")
+		query = query.Where("path LIKE ?", "%"+util.EscapeLike(filter.Path)+"%")
 	}
 	if filter.StartTime != nil {
 		query = query.Where("created_at >= ?", *filter.StartTime)