[Bug]: Incomplete Agent Trust Validation in ConfigValidator

[Aditya8369]

Description:

In bindu/penguin/config_validator.py, agent_trust processing has a TODO marked "IN DEVELOPMENT PHASE" with no validation implemented. The config accepts arbitrary dicts without schema enforcement or security checks, risking misconfigurations or security vulnerabilities in agent deployments (e.g., unverified trust policies).

Steps to Fix:

1. Define AgentTrustConfig TypedDict or Pydantic model in bindu/common/protocol/types.py with fields like required_verification_level, allowed_origins, max_agent_hierarchy_depth.
2. Update ConfigValidator._process_complex_fields(): Replace TODO with AgentTrustConfig(**config["agent_trust"]) validation, raise ValueError on failure.
3. Add comprehensive type validation in _validate_field_types() for nested trust config.
4. Write unit tests in tests/unit/test_config_validator.py (create if missing) testing valid/invalid trust configs.
5. Update docs/SKILLS.md or add section on agent trust configuration.
6. Run pytest tests/unit/ and validate with sample configs from examples/.