feat: add session expiration tracking and validation

feat: implement Redis caching for terminated sessions
feat: add new session GUID queries for validation
refactor: extend Session model with last_refresh_exp_time
refactor: update token generation to include role and session
refactor: modify auth middleware to validate session status
refactor: replace GetUserSessions with GetValidUserSessions
chore: add uuid/v5 dependency
fix: update router to pass dependencies to auth middleware
chore: update SQL schema and queries for new expiration field

backend/internal/database/models.go

@@ -63,15 +63,16 @@ type ProfileSetting struct {
 }
 
 type Session struct {
-	ID           int64
-	UserID       int64
-	Guid         pgtype.UUID
-	Name         *string
-	Platform     *string
-	LatestIp     *string
-	LoginTime    pgtype.Timestamp
-	LastSeenDate pgtype.Timestamp
-	Terminated   *bool
+	ID                 int64
+	UserID             int64
+	Guid               pgtype.UUID
+	Name               *string
+	Platform           *string
+	LatestIp           *string
+	LoginTime          pgtype.Timestamp
+	LastRefreshExpTime pgtype.Timestamp
+	LastSeenDate       pgtype.Timestamp
+	Terminated         *bool
 }
 
 type User struct {