Fix Makefile: use python -m instead of direct CLI calls

- Change 'clima-mcp test' to 'python -m weather_mcp.cli test'
- Change 'clima-mcp run' to 'python -m weather_mcp.cli run'
- Ensures commands work without relying on CLI being in PATH
- Commands now work consistently in virtual environment

Author: T-rav

Makefile

@@ -75,10 +75,10 @@ clean:
 
 # Application commands
 run-test:
-	clima-mcp test
+	python -m weather_mcp.cli test
 
 run:
-	clima-mcp run
+	python -m weather_mcp.cli run
 
 # CI/CD friendly commands
 ci-test: install-dev lint format-check type-check test coverage