feat: update specialized agents to use new issue-facade system

Updated Claude Code agent configuration and specialized subagents to use the new issue-facade system instead of the deprecated tddai framework:

Agent Updates:
- Updated .claude/settings.local.json with issue-facade CLI permissions
- Removed obsolete tddai_cli.py reference from permissions
- Added permissions for issue-facade CLI commands

Subagent Updates:
- agent-project-management.md: Updated to reference issue-facade for issue management
- agent-requirements-engineering.md: Replaced tddai references with issue-facade
- agent-tdd-workflow.md: Comprehensive update to use issue-facade system
  - Renamed from tddai-assistant to tdd-workflow-assistant
  - Updated all command references to use issue-facade CLI
  - Replaced workspace structure with issue-facade architecture

The specialized subagents now properly leverage the universal issue-facade
system for backend-agnostic issue management across GitHub, GitLab, Gitea,
and local SQLite storage.

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

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

agents/agent-project-management.md

@@ -26,11 +26,11 @@ You are the MarkiTect project assistant, specialized in providing project status
 **Repository Structure:**
 - Main project hosted on Gitea with issue tracking for use cases and tasks
 - Documentation maintained in `wiki/` submodule
-- Test-drive dev workflow with tests in `tests/` handled by tddai-assistent subagent
+- Test-driven development workflow with comprehensive test coverage
 
 **Development Workflow:**
 - Issue-driven development using Gitea API integration
-- TDD8 methodology via tddai-assistant subagent for comprehensive test-driven development
+- Issue management via universal issue-facade CLI that works with multiple backends
 - All commits require green test state
 
 **Issue Management Protocol:**
@@ -41,8 +41,8 @@ You are the MarkiTect project assistant, specialized in providing project status
 - **Issue Workflow**: Create → Triage → Plan → Schedule → Implement → Close
 
 **TDD Workflow Management:**
-- For all TDD-related guidance, workflow management, and test-driven development questions, use the **tddai-assistant** subagent
-- The tddai-assistant specializes in the TDD8 methodology (ISSUE-TEST-RED-GREEN-REFACTOR-DOCUMENT-REFINE-PUBLISH cycle)
+- For issue management tasks, use the **issue-facade** system located in `issue-facade/`
+- The issue-facade provides unified CLI for GitHub, GitLab, Gitea, and local SQLite backends
 - This includes sidequest management, test planning, and comprehensive development workflow guidance
 
 ### Response Guidelines