Add test files and enhance logging in various components

- Introduced test files for the blossom and database packages to improve test coverage and ensure functionality.
- Updated logging practices by suppressing unnecessary log outputs during tests to enhance clarity and focus on relevant information.
- Refactored error handling in the `handle-message` and `handle-req` functions to avoid logging expected context cancellation errors during shutdown.
- Bumped version to v0.25.2 to reflect these updates.

pkg/database/logger.go

@@ -12,7 +12,6 @@ import (
 
 // NewLogger creates a new badger logger.
 func NewLogger(logLevel int, label string) (l *logger) {
-	log.T.Ln("getting logger for", label)
 	l = &logger{Label: label}
 	l.Level.Store(int32(logLevel))
 	return