feat: add Chinese UI, Responses models, and mirrored Windows setup

Localize the web console and persist custom model and capability settings.
Use OpenAI Responses exclusively and move runtime limits into environment configuration.
Bootstrap uv and the virtual environment on Windows, support optional China mirrors,
and package source distributions without environments, build output, or credentials.

Update regression tests and repository quality checks for the new behavior.

tests/unit/tools/history/test_declarations.py

@@ -55,9 +55,9 @@ def test_tool_declaration_mirrors_the_args_schema(tool):
     assert lc_tool.args_schema is tool.args_schema
 
     # And the GenAI export agrees on names and required fields.
-    genai = tool.to_genai_declaration()
-    assert set(genai.parameters.properties) == set(properties)
-    assert list(genai.parameters.required or []) == declaration.parameters["required"]
+    genai = tool.to_tool_declaration()
+    assert set(genai.parameters["properties"]) == set(properties)
+    assert list(genai.parameters.get("required") or []) == declaration.parameters["required"]
 
 
 def test_declared_types_and_enums():