feat: Add .taskmaster directory (#619)

.taskmaster/tasks/task_001.txt

@@ -0,0 +1,16 @@
+# Task ID: 1
+# Title: Implement Task Data Structure
+# Status: done
+# Dependencies: None
+# Priority: high
+# Description: Design and implement the core tasks.json structure that will serve as the single source of truth for the system.
+# Details:
+Create the foundational data structure including:
+- JSON schema for tasks.json
+- Task model with all required fields (id, title, description, status, dependencies, priority, details, testStrategy, subtasks)
+- Validation functions for the task model
+- Basic file system operations for reading/writing tasks.json
+- Error handling for file operations
+
+# Test Strategy:
+Verify that the tasks.json structure can be created, read, and validated. Test with sample data to ensure all fields are properly handled and that validation correctly identifies invalid structures.