refactor(bootstrap): replace PostConstruct validator with ApplicationContextInitializer

infrastructure/src/main/java/com/pablotj/restemailbridge/infrastructure/config/AppPropertiesValidator.java

@@ -1,55 +0,0 @@
-package com.pablotj.restemailbridge.infrastructure.config;
-
-import jakarta.annotation.PostConstruct;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Component;
-
-@Component
-public class AppPropertiesValidator {
-
-    private static final Logger log = LoggerFactory.getLogger(AppPropertiesValidator.class);
-
-    @Value("${app.encryption.secret:}")
-    private String encryptionSecret;
-
-    @Value("${app.cors.allowed-origins:}")
-    private String allowedOrigins;
-
-    @Value("${spring.datasource.url:}")
-    private String datasourceUrl;
-
-    @Value("${spring.datasource.username:}")
-    private String datasourceUser;
-
-    @Value("${spring.datasource.password:}")
-    private String datasourcePassword;
-
-    @Value("${gmail.oauth2.clientId:}")
-    private String gmailClientId;
-
-    @Value("${gmail.oauth2.clientSecret:}")
-    private String gmailClientSecret;
-
-    @PostConstruct
-    public void validate() {
-        check("APP_ENCRYPTION_SECRET", encryptionSecret, false);
-        check("APP_ALLOWED_ORIGINS", allowedOrigins, true);
-        check("DB_URL", datasourceUrl, true);
-        check("DB_USER", datasourceUser, true);
-        check("DB_PASSWORD", datasourcePassword, false);
-        check("GMAIL_OAUTH_CLIENT_ID", gmailClientId, true);
-        check("GMAIL_OAUTH_CLIENT_SECRET", gmailClientSecret, false);
-    }
-
-    private void check(String name, String value, boolean logValue) {
-        if (value == null || value.isEmpty()) {
-            throw new IllegalStateException("ERROR: Property '" + name + "' is not defined or empty");
-        } else if (logValue) {
-            log.info("Property '{}' is defined with value: {}", name, value);
-        } else {
-            log.info("Property '{}' is defined", name);
-        }
-    }
-}