feat: add initial project structure with core files and configuration

Set up the yura async AI client project scaffold including .gitignore, build system configuration in pyproject.toml and setup.cfg, a make script for venv and build automation, the AsyncClient class in src/yura/client.py with websocket-based chat communication, and pre-built distribution artifacts for version 13.3.7.

setup.cfg

@@ -0,0 +1,27 @@
+[metadata]
+name = yura
+version = 13.3.7
+description = Yura async AI client
+author = retoor
+author_email = retoor@retoor.io
+license = MIT
+long_description = file: README.md
+long_description_content_type = text/markdown
+
+[options]
+packages = find:
+include_package_data = true
+package_dir =
+    = src
+python_requires = >=3.7
+install_requires =
+    websockets
+[options.packages.find]
+where = src
+
+[options.package_data]
+;stogram_client = binaries/*
+
+[options.entry_points]
+console_scripts =
+     yura = yura.client:main