feat: implement tdd workflow (#1309)

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.changeset/some-dodos-wonder.md

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+---
+"task-master-ai": minor
+---
+
+Add autonomous TDD workflow automation system with new `tm autopilot` commands and MCP tools for AI-driven test-driven development.
+
+**New CLI Commands:**
+
+- `tm autopilot start <taskId>` - Initialize TDD workflow
+- `tm autopilot next` - Get next action in workflow
+- `tm autopilot status` - Check workflow progress
+- `tm autopilot complete` - Advance phase with test results
+- `tm autopilot commit` - Save progress with metadata
+- `tm autopilot resume` - Continue from checkpoint
+- `tm autopilot abort` - Cancel workflow
+
+**New MCP Tools:**
+Seven new autopilot tools for programmatic control: `autopilot_start`, `autopilot_next`, `autopilot_status`, `autopilot_complete_phase`, `autopilot_commit`, `autopilot_resume`, `autopilot_abort`
+
+**Features:**
+
+- Complete RED → GREEN → COMMIT cycle enforcement
+- Intelligent commit message generation with metadata
+- Activity logging and state persistence
+- Configurable workflow settings via `.taskmaster/config.json`
+- Comprehensive AI agent integration documentation
+
+**Documentation:**
+
+- AI Agent Integration Guide (2,800+ lines)
+- TDD Quick Start Guide
+- Example prompts and integration patterns
+
+> **Learn more:** [TDD Workflow Quickstart Guide](https://dev.task-master.dev/tdd-workflow/quickstart)
+
+This release enables AI agents to autonomously execute test-driven development workflows with full state management and recovery capabilities.