feat: reorganize tests by capability with separate test targets

Separate capability-specific tests from core system tests to establish clear
test organization and separation of concerns.

## Test Reorganization:
- **markitect-content tests**: Moved 6 tests to capabilities/markitect-content/tests/
- **markitect-finance tests**: Moved 7 tests to markitect/finance/tests/
- **markitect-query tests**: Moved 1 test to markitect/query_paradigms/tests/
- **markitect-graphql tests**: Moved 2 tests to markitect/graphql/tests/
- **markitect-plugins tests**: Moved 2 tests to markitect/plugins/tests/

## Makefile Updates:
- **make test**: Excludes capability tests, runs only core system tests
- **make test-capabilities**: Runs all capability tests
- **make test-capability-***: Individual capability test targets
- Updated all test targets (test-red, test-green, test-ultra-fast, test-perf)
- Added capability test targets to help documentation

## Benefits:
- Clear separation between core system tests and capability-specific tests
- Faster core test execution (capability tests not run by default)
- Individual capability testing for focused development
- Supports future capability extraction workflow
- Maintains capability test independence

Test verification:
- Core tests: 1291 tests (capability tests excluded)
- Finance capability: 143 tests working independently
- Content capability: 79 tests working independently

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

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

Makefile

@@ -25,7 +25,9 @@ help:
 	@echo "  venv-status - Check if venv is active"
 	@echo ""
 	@echo "Development:"
-	@echo "  test        - Run all tests"
+	@echo "  test        - Run core tests (excluding capability-specific tests)"
+	@echo "  test-capabilities   - Run all capability-specific tests"
+	@echo "  test-capability-*   - Run specific capability tests (content, utils, finance, etc.)"
 	@echo "  test-status - Show test status summary without re-running"
 	@echo "  test-new    - Create new test file template"
 	@echo "  test-coverage       - Analyze test coverage"
@@ -320,25 +322,77 @@ setup-dev: install-dev
 
 # Run tests
 test: $(VENV)/bin/activate
-	@echo "🧪 Running tests..."
+	@echo "🧪 Running core tests (excluding capability-specific tests)..."
 	@if [ -f $(VENV)/bin/pytest ]; then \
-		PYTHONPATH=. $(VENV)/bin/pytest tests/ -v; \
+		PYTHONPATH=. $(VENV)/bin/pytest tests/ -v \
+			--ignore=capabilities/markitect-content/tests/ \
+			--ignore=capabilities/markitect-utils/tests/ \
+			--ignore=markitect/finance/tests/ \
+			--ignore=markitect/query_paradigms/tests/ \
+			--ignore=markitect/graphql/tests/ \
+			--ignore=markitect/plugins/tests/; \
 	else \
-		PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -v 2>/dev/null || \
+		PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -v \
+			--ignore=capabilities/markitect-content/tests/ \
+			--ignore=capabilities/markitect-utils/tests/ \
+			--ignore=markitect/finance/tests/ \
+			--ignore=markitect/query_paradigms/tests/ \
+			--ignore=markitect/graphql/tests/ \
+			--ignore=markitect/plugins/tests/ 2>/dev/null || \
 		PYTHONPATH=. $(VENV_PYTHON) -m unittest discover tests/ -v; \
 	fi
 
+# Capability-Specific Test Targets
+test-capabilities: test-capability-content test-capability-utils test-capability-finance test-capability-query test-capability-graphql test-capability-plugins
+	@echo "✅ All capability tests completed"
+
+test-capability-content: $(VENV)/bin/activate
+	@echo "🧪 Running markitect-content capability tests..."
+	@cd capabilities/markitect-content && python -m pytest tests/ -v
+
+test-capability-utils: $(VENV)/bin/activate
+	@echo "🧪 Running markitect-utils capability tests..."
+	@cd capabilities/markitect-utils && python -m pytest tests/ -v
+
+test-capability-finance: $(VENV)/bin/activate
+	@echo "🧪 Running finance capability tests..."
+	@PYTHONPATH=. $(VENV_PYTHON) -m pytest markitect/finance/tests/ -v
+
+test-capability-query: $(VENV)/bin/activate
+	@echo "🧪 Running query paradigms capability tests..."
+	@PYTHONPATH=. $(VENV_PYTHON) -m pytest markitect/query_paradigms/tests/ -v
+
+test-capability-graphql: $(VENV)/bin/activate
+	@echo "🧪 Running GraphQL capability tests..."
+	@PYTHONPATH=. $(VENV_PYTHON) -m pytest markitect/graphql/tests/ -v
+
+test-capability-plugins: $(VENV)/bin/activate
+	@echo "🧪 Running plugins capability tests..."
+	@PYTHONPATH=. $(VENV_PYTHON) -m pytest markitect/plugins/tests/ -v
+
 # TDD8 Workflow Optimized Test Targets (Issue #57)
 
 # Fast test execution for TDD red phase
 test-red: $(VENV)/bin/activate
 	@echo "🔴 TDD Red Phase - Fast test execution..."
-	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -x --maxfail=1 --tb=short -q
+	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -x --maxfail=1 --tb=short -q \
+		--ignore=capabilities/markitect-content/tests/ \
+		--ignore=capabilities/markitect-utils/tests/ \
+		--ignore=markitect/finance/tests/ \
+		--ignore=markitect/query_paradigms/tests/ \
+		--ignore=markitect/graphql/tests/ \
+		--ignore=markitect/plugins/tests/
 
 # Comprehensive test execution for TDD green phase
 test-green: $(VENV)/bin/activate
 	@echo "🟢 TDD Green Phase - Comprehensive validation..."
-	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ --tb=short
+	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ --tb=short \
+		--ignore=capabilities/markitect-content/tests/ \
+		--ignore=capabilities/markitect-utils/tests/ \
+		--ignore=markitect/finance/tests/ \
+		--ignore=markitect/query_paradigms/tests/ \
+		--ignore=markitect/graphql/tests/ \
+		--ignore=markitect/plugins/tests/
 
 # Smart test selection - changed files only
 test-smart: $(VENV)/bin/activate
@@ -354,12 +408,24 @@ test-smart: $(VENV)/bin/activate
 # Ultra-fast test execution
 test-ultra-fast: $(VENV)/bin/activate
 	@echo "⚡ Ultra-fast test execution..."
-	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -m "not slow" --maxfail=1 -x -q
+	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ -m "not slow" --maxfail=1 -x -q \
+		--ignore=capabilities/markitect-content/tests/ \
+		--ignore=capabilities/markitect-utils/tests/ \
+		--ignore=markitect/finance/tests/ \
+		--ignore=markitect/query_paradigms/tests/ \
+		--ignore=markitect/graphql/tests/ \
+		--ignore=markitect/plugins/tests/
 
 # Test with performance monitoring
 test-perf: $(VENV)/bin/activate
 	@echo "📊 Test execution with performance monitoring..."
-	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ --durations=10 --tb=short
+	PYTHONPATH=. $(VENV_PYTHON) -m pytest tests/ --durations=10 --tb=short \
+		--ignore=capabilities/markitect-content/tests/ \
+		--ignore=capabilities/markitect-utils/tests/ \
+		--ignore=markitect/finance/tests/ \
+		--ignore=markitect/query_paradigms/tests/ \
+		--ignore=markitect/graphql/tests/ \
+		--ignore=markitect/plugins/tests/
 
 # Test health check
 test-health: $(VENV)/bin/activate