update gitignore, makefile and readme

Makefile

@@ -20,3 +20,30 @@ migrateup:
 # Run all services
 run:
 	go run ./service_a/server/main.go & go run ./service_b/server/main.go
+
+.PHONY: test
+# Run all tests with coverage
+test:
+	@echo "Running tests for service_a..."
+	cd $(SERVICE_A) && go test ./... -coverprofile=../service_a_coverage.out
+	@echo "Running tests for service_b..."
+	cd $(SERVICE_B) && go test ./... -coverprofile=../service_b_coverage.out
+	@echo "\nCoverage reports generated:"
+	@echo "  - service_a_coverage.out"
+	@echo "  - service_b_coverage.out"
+
+.PHONY: coverage
+# View coverage reports in browser
+coverage:
+	@echo "Opening service_a coverage report..."
+	cd $(SERVICE_A) && go tool cover -html=../service_a_coverage.out
+	@echo "Opening service_b coverage report..."
+	cd $(SERVICE_B) && go tool cover -html=../service_b_coverage.out
+
+.PHONY: coverage-func
+# Show coverage summary in terminal
+coverage-func:
+	@echo "Service A Coverage:"
+	cd $(SERVICE_A) && go tool cover -func=../service_a_coverage.out
+	@echo "\nService B Coverage:"
+	cd $(SERVICE_B) && go tool cover -func=../service_b_coverage.out