feat(mcp): add FastMCP dependency and base constraints

Add FastMCP package dependency to requirements/base.txt for
MCP service functionality. Include base-constraint.txt for
dependency version management.

Update pyproject.toml with any related configuration changes.

Author: aminghadersohi

pyproject.toml

@@ -139,6 +139,7 @@ solr = ["sqlalchemy-solr >= 0.2.0"]
 elasticsearch = ["elasticsearch-dbapi>=0.2.9, <0.3.0"]
 exasol = ["sqlalchemy-exasol >= 2.4.0, <3.0"]
 excel = ["xlrd>=1.2.0, <1.3"]
+fastmcp = ["fastmcp>=2.12.3"]
 firebird = ["sqlalchemy-firebird>=0.7.0, <0.8"]
 firebolt = ["firebolt-sqlalchemy>=1.0.0, <2"]
 gevent = ["gevent>=23.9.1"]