chore(pyproject.toml): deprecate Python <=3.8

Signed-off-by: Teo <[email protected]>

pyproject.toml

@@ -14,11 +14,9 @@ authors = [
 ]
 description = "Observability and DevTool Platform for AI Agents"
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.9"
 classifiers = [
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -40,15 +38,6 @@ dependencies = [
     # "pydantic-core>=2.23.4; python_version >= '3.8' and python_version < '3.13'"
 ]
 
-[project.optional-dependencies]
-# Optional LangChain integration for end users
-langchain = [
-    "langchain>=0.2.14; python_version >= '3.8.1' and python_version < '3.13'",
-    "langchain-core>=0.3.0; python_version >= '3.8.1' and python_version < '3.13'",
-    "openai>=1.58.1; python_version >= '3.8.1' and python_version < '3.13'",
-    "openai<1.0.0; python_version < '3.8.1'"  # For Python 3.7 compatibility
-]
-
 [dependency-groups]
 test = [
     "openai",
@@ -72,7 +61,6 @@ dev = [
 
     # HTTP mocking and environment
     "requests_mock==1.11.0", # Mock HTTP requests for testing agent external communications
-    "vcrpy>=6.0.0,<7.0.0; python_version >= '3.8'",  # HTTP interaction recording for Python 3.8+
     # "urllib3<2.0.0; python_version >= '3.8'",        # Required for vcrpy compatibility
     "python-dotenv",         # Environment management for secure testing