feat: lite deep researcher implementation

pyproject.toml

@@ -0,0 +1,61 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "lite-deep-researcher"
+version = "0.1.0"
+description = "Lite-Deep-Researcher project"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "httpx>=0.28.1",
+    "langchain-community>=0.3.19",
+    "langchain-experimental>=0.3.4",
+    "langchain-openai>=0.3.8",
+    "langgraph>=0.3.5",
+    "readabilipy>=0.3.0",
+    "python-dotenv>=1.0.1",
+    "socksio>=1.0.0",
+    "markdownify>=1.1.0",
+    "fastapi>=0.110.0",
+    "uvicorn>=0.27.1",
+    "sse-starlette>=1.6.5",
+    "pandas>=2.2.3",
+    "numpy>=2.2.3",
+    "yfinance>=0.2.54",
+    "litellm>=1.63.11",
+    "json-repair>=0.7.0",
+    "jinja2>=3.1.3",
+]
+
+[project.optional-dependencies]
+dev = [
+    "black>=24.2.0",
+]
+test = [
+    "pytest>=7.4.0",
+    "pytest-cov>=4.1.0",
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+addopts = "-v --cov=src --cov-report=term-missing"
+filterwarnings = [
+    "ignore::DeprecationWarning",
+    "ignore::UserWarning",
+]
+
+[tool.hatch.build.targets.wheel]
+packages = ["src"]
+
+[tool.black]
+line-length = 88
+target-version = ["py312"]
+include = '\.pyi?$'
+extend-exclude = '''
+# A regex preceded with ^/ will apply only to files and directories
+# in the root of the project.
+^/build/
+'''