AgentGuard v0.2.1 - Language-Neutral Authorization API & Auto-Configuration

AgentGuard 0.2.1

Additions and Enhancements

• Spring Web Auto-Configuration: Added AgentGuardWebAutoConfiguration in �gentguard-spring-web with AutoConfiguration.imports for Spring Boot 3 autoconfiguration of POST /v1/authorize.
• SPIFFE Workload SVIDs: Added SpiffeAgentIdentityResolver supporting zero-trust workload identity tokens.
• Entra ID & Keycloak Claim Mappings: Direct mapping for oid, �zp, �ppid, id, and Keycloak
  esource_access roles.
• Comprehensive Adversarial Suite: 32-test security matrix covering privilege escalation, forged claims, approval tampering, replay attacks, and expired credentials.
• Interactive Simulator Parity: Updated code files explorer with �gentguard-spring-web support and added Mermaid architecture diagram to README.