fix(packaging): add setuptools to dev extra so packaging test collects

tests/test_packaging_metadata.py (added in #34811) imports
`from setuptools import find_packages` at module level. setuptools is
only declared under [build-system] requires, not as a runtime/test dep,
so CI's uv-managed test venv (uv pip install -e '.[all,dev]') lacks it
and the module errors at collection with ModuleNotFoundError. Adding
setuptools>=61.0 to the dev extra keeps the wheel-packaging regression
test running in CI instead of skipping or erroring.

pyproject.toml

@@ -83,7 +83,7 @@ edge-tts = ["edge-tts==7.2.7"]
 modal = ["modal==1.3.4"]
 daytona = ["daytona==0.155.0"]
 hindsight = ["hindsight-client==0.6.1"]
-dev = ["debugpy==1.8.20", "pytest==9.0.2", "pytest-asyncio==1.3.0", "pytest-timeout==2.4.0", "mcp==1.26.0", "ty==0.0.21", "ruff==0.15.10"]
+dev = ["debugpy==1.8.20", "pytest==9.0.2", "pytest-asyncio==1.3.0", "pytest-timeout==2.4.0", "mcp==1.26.0", "ty==0.0.21", "ruff==0.15.10", "setuptools>=61.0,<83"]
 messaging = ["python-telegram-bot[webhooks]==22.6", "discord.py[voice]==2.7.1", "aiohttp==3.13.3", "brotlicffi==1.2.0.1", "slack-bolt==1.27.0", "slack-sdk==3.40.1", "qrcode==7.4.2"]
 cron = []  # croniter is now a core dependency; this extra kept for back-compat
 slack = ["slack-bolt==1.27.0", "slack-sdk==3.40.1", "aiohttp==3.13.3"]

uv.lock

@@ -1638,6 +1638,7 @@ all = [
     { name = "pytest-timeout" },
     { name = "pywinpty", marker = "sys_platform == 'win32'" },
     { name = "ruff" },
+    { name = "setuptools" },
     { name = "simple-term-menu" },
     { name = "ty" },
     { name = "uvicorn", extra = ["standard"] },
@@ -1668,6 +1669,7 @@ dev = [
     { name = "pytest-asyncio" },
     { name = "pytest-timeout" },
     { name = "ruff" },
+    { name = "setuptools" },
     { name = "ty" },
 ]
 dingtalk = [
@@ -1877,6 +1879,7 @@ requires-dist = [
     { name = "rich", specifier = "==14.3.3" },
     { name = "ruamel-yaml", specifier = "==0.18.17" },
     { name = "ruff", marker = "extra == 'dev'", specifier = "==0.15.10" },
+    { name = "setuptools", marker = "extra == 'dev'", specifier = ">=61.0,<83" },
     { name = "simple-term-menu", marker = "extra == 'cli'", specifier = "==1.6.6" },
     { name = "slack-bolt", marker = "extra == 'messaging'", specifier = "==1.27.0" },
     { name = "slack-bolt", marker = "extra == 'slack'", specifier = "==1.27.0" },