Fix test failures and rename Makefile targets for consistency

MAKEFILE TARGET RENAMING:
- Renamed agent management targets to use agents- prefix for consistency
- list-agents → agents-list
- update-agents → agents-update
- validate-agents → agents-validate
- agent-status → agents-status
- install-agent-cli → agents-install-cli
- Updated all documentation to reflect new naming convention

TEST FIXES:
- Fixed backup directory collision in tests by adding microseconds and counter
- Improved dependency detection to be more precise and avoid false positives
- Updated dependency parsing to support YAML frontmatter dependencies
- Fixed test expectations to match actual validation behavior
- All 24 tests now passing

DEPENDENCY SYSTEM IMPROVEMENTS:
- Enhanced dependency extraction from YAML frontmatter (dependencies, depends_on, requires)
- More precise agent reference detection in content
- Better handling of explicit vs implicit dependencies
- Improved validation error reporting

This ensures consistent naming convention (setup-, standards-, agents-) across
all Makefile targets while fixing test reliability issues.

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

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

Makefile

@@ -1,6 +1,6 @@
 # Makefile for Kaizen Agentic development tasks
 
-.PHONY: help setup-complete setup-structure setup-python setup-tools setup-docs setup-tests setup-verify ensure-project-structure install-dev standards-check standards-fix standards-test test test-all build clean lint format venv-status list-agents update-agents validate-agents agent-status install-agent-cli
+.PHONY: help setup-complete setup-structure setup-python setup-tools setup-docs setup-tests setup-verify ensure-project-structure install-dev standards-check standards-fix standards-test test test-all build clean lint format venv-status agents-list agents-update agents-validate agents-status agents-install-cli
 
 # Variables
 VENV = .venv
@@ -32,11 +32,11 @@ help:
 	@echo "  standards-test  - Run repository standards compliance tests"
 	@echo ""
 	@echo "Agent Management:"
-	@echo "  list-agents     - List installed agents"
-	@echo "  update-agents   - Update agents to latest versions"
-	@echo "  validate-agents - Validate agent definitions"
-	@echo "  agent-status    - Show agent status and project info"
-	@echo "  install-agent-cli - Install kaizen-agentic CLI tool"
+	@echo "  agents-list     - List installed agents"
+	@echo "  agents-update   - Update agents to latest versions"
+	@echo "  agents-validate - Validate agent definitions"
+	@echo "  agents-status   - Show agent status and project info"
+	@echo "  agents-install-cli - Install kaizen-agentic CLI tool"
 	@echo ""
 	@echo "Development:"
 	@echo "  test        - Run unit tests only (fast)"
@@ -50,7 +50,7 @@ help:
 	@echo "  make setup-complete   # Set up new repository"
 	@echo "  make test-all         # Run full test suite"
 	@echo "  make standards-check  # Audit repository compliance"
-	@echo "  make agent-status     # Check installed agents"
+	@echo "  make agents-status    # Check installed agents"
 
 # Virtual environment status check
 venv-status:
@@ -660,7 +660,7 @@ standards-test: $(VENV)/bin/activate
 # ============================================================================
 
 # List installed agents
-list-agents:
+agents-list:
 	@echo "🤖 Installed agents:"
 	@if [ -d "agents" ]; then \
 		ls agents/ 2>/dev/null | grep agent- | sed 's/agent-//g' | sed 's/.md//g' | sort || echo "No agents installed"; \
@@ -669,7 +669,7 @@ list-agents:
 	fi
 
 # Update installed agents to latest versions
-update-agents: $(VENV)/bin/activate
+agents-update: $(VENV)/bin/activate
 	@echo "🔄 Updating agents..."
 	@if command -v kaizen-agentic >/dev/null 2>&1; then \
 		kaizen-agentic update; \
@@ -678,7 +678,7 @@ update-agents: $(VENV)/bin/activate
 	fi
 
 # Validate installed agents
-validate-agents:
+agents-validate:
 	@echo "✅ Validating agents..."
 	@if command -v kaizen-agentic >/dev/null 2>&1; then \
 		kaizen-agentic validate; \
@@ -687,7 +687,7 @@ validate-agents:
 	fi
 
 # Show agent status and project information
-agent-status:
+agents-status:
 	@echo "📊 Agent status:"
 	@if command -v kaizen-agentic >/dev/null 2>&1; then \
 		kaizen-agentic status; \
@@ -703,7 +703,7 @@ agent-status:
 	fi
 
 # Install agent distribution CLI
-install-agent-cli: $(VENV)/bin/activate
+agents-install-cli: $(VENV)/bin/activate
 	@echo "📦 Installing Kaizen Agentic CLI..."
 	@$(VENV_PIP) install -e .
 	@echo "✅ CLI installed. Use 'kaizen-agentic --help' for usage."