feat(profile): add credential binding contracts

Author: loong10k

src/main/java/io/github/easy4j/hermes/security/ProfileCredentialResolver.java

@@ -0,0 +1,7 @@
+package io.github.easy4j.hermes.security;
+
+/** Resolves the credential binding for a named Hermes profile. */
+@FunctionalInterface
+public interface ProfileCredentialResolver {
+    ProfileBinding resolve(String profileId);
+}