Refactoring: Rename Language to LanguageServerId

This resolves a long-standing naming issue in Serena & SolidLSP.

test/solidlsp/groovy/test_groovy_basic.py

@@ -5,7 +5,7 @@ import pytest
 
 from serena.constants import SERENA_MANAGED_DIR_NAME
 from solidlsp import SolidLanguageServer
-from solidlsp.ls_config import Language, LanguageServerConfig
+from solidlsp.ls_config import LanguageServerConfig, LanguageServerId
 from solidlsp.ls_utils import SymbolUtils
 from solidlsp.settings import SolidLSPSettings
 from test.solidlsp.conftest import format_symbol_for_assert, has_malformed_name, request_all_symbols
@@ -43,13 +43,13 @@ class TestGroovyLanguageServer:
 
         # Create language server directly with Groovy-specific settings
         repo_path = str(cls.test_repo_path)
-        config = LanguageServerConfig(code_language=Language.GROOVY, ignored_paths=[], trace_lsp_communication=False)
+        config = LanguageServerConfig(ls_id=LanguageServerId.GROOVY, ignored_paths=[], trace_lsp_communication=False)
 
         project_data_path = os.path.join(repo_path, SERENA_MANAGED_DIR_NAME)
         solidlsp_settings = SolidLSPSettings(
             solidlsp_dir=str(Path.home() / ".serena"),
             project_data_path=project_data_path,
-            ls_specific_settings={Language.GROOVY: groovy_settings},
+            ls_specific_settings={LanguageServerId.GROOVY: groovy_settings},
         )
 
         cls.language_server = SolidLanguageServer.create(config, repo_path, solidlsp_settings=solidlsp_settings)