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/storage/interfaces.go

@@ -0,0 +1,45 @@
+// Package storage provides common storage interfaces for BZZZ
+// This package contains shared storage interfaces to avoid circular dependencies.
+
+package storage
+
+import "time"
+
+// UCXLStorage defines the interface for UCXL content storage operations
+type UCXLStorage interface {
+	// StoreUCXLContent stores content at a UCXL address with role-based encryption
+	StoreUCXLContent(address string, content []byte, role string, contentType string) error
+	
+	// RetrieveUCXLContent retrieves and decrypts content from a UCXL address
+	RetrieveUCXLContent(address string) ([]byte, *UCXLMetadata, error)
+	
+	// AnnounceContent announces content availability in the network
+	AnnounceContent(address string) error
+	
+	// SearchContent searches for content based on query parameters
+	SearchContent(query *SearchQuery) ([]*UCXLMetadata, error)
+	
+	// GetMetrics returns storage metrics
+	GetMetrics() map[string]interface{}
+}
+
+// UCXLMetadata represents metadata about stored UCXL content
+type UCXLMetadata struct {
+	Address     string    `json:"address"`
+	CreatorRole string    `json:"creator_role"`
+	ContentType string    `json:"content_type"`
+	CreatedAt   time.Time `json:"created_at"`
+	Size        int64     `json:"size"`
+	Encrypted   bool      `json:"encrypted"`
+}
+
+// SearchQuery represents search parameters for UCXL content
+type SearchQuery struct {
+	Agent        string    `json:"agent,omitempty"`
+	Role         string    `json:"role,omitempty"`
+	Project      string    `json:"project,omitempty"`
+	ContentType  string    `json:"content_type,omitempty"`
+	CreatedAfter time.Time `json:"created_after,omitempty"`
+	CreatedBefore time.Time `json:"created_before,omitempty"`
+	Limit        int       `json:"limit,omitempty"`
+}