Resolve import cycles and migrate to chorus.services module path

This comprehensive refactoring addresses critical architectural issues:

IMPORT CYCLE RESOLUTION:
• pkg/crypto ↔ pkg/slurp/roles: Created pkg/security/access_levels.go
• pkg/ucxl → pkg/dht: Created pkg/storage/interfaces.go
• pkg/slurp/leader → pkg/election → pkg/slurp/storage: Moved types to pkg/election/interfaces.go

MODULE PATH MIGRATION:
• Changed from github.com/anthonyrawlins/bzzz to chorus.services/bzzz
• Updated all import statements across 115+ files
• Maintains compatibility while removing personal GitHub account dependency

TYPE SYSTEM IMPROVEMENTS:
• Resolved duplicate type declarations in crypto package
• Added missing type definitions (RoleStatus, TimeRestrictions, KeyStatus, KeyRotationResult)
• Proper interface segregation to prevent future cycles

ARCHITECTURAL BENEFITS:
• Build now progresses past structural issues to normal dependency resolution
• Cleaner separation of concerns between packages
• Eliminates circular dependencies that prevented compilation
• Establishes foundation for scalable codebase growth

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

pkg/crypto/age_crypto.go

@@ -38,7 +38,7 @@ import (
 
 	"filippo.io/age"           // Modern, secure encryption library
 	"filippo.io/age/agessh"    // SSH key support (unused but available)
-	"github.com/anthonyrawlins/bzzz/pkg/config"
+	"chorus.services/bzzz/pkg/config"
 )
 
 // AgeCrypto handles Age encryption for role-based content security.
@@ -336,7 +336,7 @@ func (ac *AgeCrypto) EncryptUCXLContent(content []byte, creatorRole string) ([]b
 // getDecryptableRolesForCreator determines which roles should be able to decrypt content from a creator
 func (ac *AgeCrypto) getDecryptableRolesForCreator(creatorRole string) ([]string, error) {
 	roles := config.GetPredefinedRoles()
-	creator, exists := roles[creatorRole]
+	_, exists := roles[creatorRole]
 	if !exists {
 		return nil, fmt.Errorf("creator role '%s' not found", creatorRole)
 	}