chore: swap pydantic-ai with pydantic-ai-slim (#45)

Author: sdn4z

pyproject.toml

@@ -7,13 +7,14 @@ requires-python = "<4,>=3.13"
 dependencies = [
     "httpx<1.0.0,>=0.28.0",
     "python-dotenv<2.0.0,>=1.1.1",
-    "pydantic-ai[logfire]<1.0.0,>=0.2.0",
     "click<9.0.0,>=8.1.7",
     "stamina<26.0.0,>=25.1.0",
     "pydantic-settings[dotenv]<3.0.0,>=2.9.1",
     "tiktoken<1.0.0,>=0.9.0",
     "tomlkit<1.0.0,>=0.13.3",
     "ruff>=0.12.4",
+    "pydantic-ai-slim[google,openai]>=0.4.4",
+    "logfire>=3.25.0",
 ]
 name = "lightman_ai"
 version = "0.16.13"