Handle parameters with environmental variables only (#24)

* Switch to Typer to read the CLI parameters and options

* Rely on environmental variables only

* Fix tests

* Update README

src/mcp_server_qdrant/main.py

@@ -0,0 +1,9 @@
+from mcp_server_qdrant.server import mcp
+
+
+def main():
+    """
+    Main entry point for the mcp-server-qdrant script defined
+    in pyproject.toml. It runs the MCP server.
+    """
+    mcp.run()