feat: add change password endpoint using old password;

feat: implement change password service method with validation;
fix: correct ErrorIsOneOf function logic to return true on match;
refactor: rename 'log_out_accounts' to 'log_out_sessions' for clarity;
refactor: update session termination to return GUIDs and cache in Redis;
fix: ensure RollbackOnError only rolls back uncommitted transactions;
fix: handle transaction commit errors properly in dbHelper;
refactor: add helper methods for session termination and registration;
refactor: pass client info to login and registration complete methods;
fix: improve token validation error handling in refresh endpoint;
refactor: update auth middleware to set session info correctly;
chore: remove unused ClientInfo DTO;
fix: correct password reset complete to use session termination helper;
refactor: adjust database queries for session management;
chore: update SQL schema and queries for sessions;
docs: update swagger docs with new endpoint and model changes

backend/internal/errors/auth.go

@@ -31,7 +31,7 @@ var (
 	ErrServerError = errors.New("Internal server error")
 
 	ErrTokenExpired = errors.New("Token is expired")
-	ErrTokenInvalid = errors.New("Token is invalid")
+	ErrTokenInvalid = ErrInvalidToken
 	ErrWrongTokenType = errors.New("Invalid token type")
 	ErrSessionNotFound = errors.New("Could not find session in database")
 	ErrSessionTerminated = errors.New("Session is terminated")