Context

Implement the task and project management domain models per DESIGN_SPEC Section 6.

Models to Implement

• Task - full lifecycle model with status enum (CREATED → ASSIGNED → IN_PROGRESS → IN_REVIEW → COMPLETED | BLOCKED | CANCELLED)
• Project - collection of tasks with team, deadline, budget
• Artifact - produced work items (code, docs, designs)
• TaskStatus - enum for lifecycle states
• TaskType - development, design, research, review, meeting, admin
• Priority - critical, high, medium, low

Acceptance Criteria

• Task model matches DESIGN_SPEC 6.2 schema
• Valid state transitions enforced
• Task dependencies modeled
• Acceptance criteria as structured data
• Unit tests for state machine transitions

Dependencies

• Core entity models issue (M1)

Design Spec Reference

Sections 6.1, 6.2