Refactor code structure for improved readability and maintainability

pyproject.toml

@@ -0,0 +1,39 @@
+[project]
+name = "gitea-agent"
+version = "0.1.0"
+description = "An AI agent that automates Gitea tasks."
+readme = "README.md"
+requires-python = ">=3.10"
+dependencies = [
+    "httpx>=0.28.1",
+    "python-dotenv>=1.0.0",
+    "openai>=1.0.0",
+    "pydantic>=2.13.4",
+    "pydantic-settings>=2.0.0",
+    "lmstudio>=1.5.0",
+    # Research tools
+    "duckduckgo-search>=6.0",
+    "trafilatura>=1.12",
+    "readability-lxml>=0.8",
+    "markdownify>=0.13",
+]
+
+[project.scripts]
+start-agent = "main:start_agent"
+
+[build-system]
+requires = ["setuptools>=61.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+py-modules = ["main"]
+
+[tool.setuptools.packages.find]
+include = ["core", "gitea"]
+
+[dependency-groups]
+dev = [
+    "pytest>=9.1.1",
+    "ty>=0.0.55",
+]
+