Implement policy system with comprehensive testing and configuration

- Introduced a new policy system for event processing, allowing fine-grained control over event storage and retrieval based on various criteria.
- Added support for policy configuration via JSON files, including whitelists, blacklists, and custom scripts.
- Implemented a test suite for the policy system, ensuring 100% test coverage of core functionality and edge cases.
- Created benchmark tests to evaluate policy performance under various conditions.
- Updated event handling to integrate policy checks for both read and write access.
- Enhanced documentation with examples and usage instructions for the policy system.
- Bumped version to v0.16.0.

pkg/acl/none.go

@@ -4,6 +4,7 @@ import (
 	"lol.mleku.dev/log"
 	"next.orly.dev/app/config"
 	"next.orly.dev/pkg/encoders/bech32encoding"
+	"next.orly.dev/pkg/encoders/event"
 	"next.orly.dev/pkg/utils"
 )
 
@@ -78,6 +79,10 @@ func (n None) Type() string {
 	return "none"
 }
 
+func (n None) CheckPolicy(ev *event.E) (allowed bool, err error) {
+	return true, nil
+}
+
 func (n None) Syncer() {}
 
 func init() {