feat: add codex retry gateway tui client

pyproject.toml

@@ -0,0 +1,31 @@
+[project]
+name = "codex-retry-gateway-tui"
+version = "0.1.0"
+description = "Terminal UI for codex-retry-gateway monitoring and control"
+readme = "README.md"
+requires-python = ">=3.11"
+license = "MIT"
+license-files = ["LICENSE"]
+authors = [
+    { name = "Shujakuin" },
+]
+keywords = ["codex", "gateway", "tui", "textual", "client"]
+dependencies = [
+    "textual>=0.89.1",
+]
+
+[build-system]
+requires = ["setuptools>=68"]
+build-backend = "setuptools.build_meta"
+
+[project.scripts]
+codex-retry-gateway-tui = "codex_retry_gateway_tui:main"
+codex-gateway-tui = "codex_retry_gateway_tui:main"
+
+[project.urls]
+Homepage = "https://gitea.shujk.top/shujakuin/codex-retry-gateway-tui"
+Repository = "https://gitea.shujk.top/shujakuin/codex-retry-gateway-tui"
+
+[tool.setuptools]
+py-modules = ["codex_retry_gateway_tui"]
+include-package-data = true