refactor: migrate to pyproject.toml and update CLI entry point

• Move dependencies from requirements.txt to pyproject.toml with static
listing
 • Add project.scripts entry for docai CLI app
 • Update main.py to use docai.cli:app instead of main.py
 • Remove obsolete main.py and requirements.txt files

This modernizes packaging and simplifies the CLI setup.

pyproject.toml

@@ -5,10 +5,23 @@ build-backend = "hatchling.build"
 [project]
 name = "docai"
 version = "0.0.0"
-dynamic = ["dependencies"]
+requires-python = ">=3.12,<3.14"
+dependencies = [
+    "rich>=14.2",
+    "typer>=0.20.0",
+    "langchain>=1.1",
+    "langchain-openai>=1.1",
+    "xdg-base-dirs>=6.0.2",
+    "in_place>=1.0.1",
+    "tree-sitter>=0.25.2",
+    "tree-sitter-python>=0.25.0",
+    "tree-sitter-c>=0.24.1",
+    "tree-sitter-cpp>=0.23.4",
+]
+dynamic = []
 
-[tool.hatch.dependencies]
-path = "requirements.txt"
+[project.scripts]
+docai = "docai.cli:app"
 
 [tool.hatch.build.targets.wheel]
 packages = ["src/docai"]

requirements.txt

@@ -1,10 +0,0 @@
-rich>=14.2
-typer>=0.20.0
-langchain>=1.1
-langchain-openai>=1.1
-xdg-base-dirs>=6.0.2
-in_place>=1.0.1
-tree-sitter>=0.25.2
-tree-sitter-python>=0.25.0
-tree-sitter-c>=0.24.1
-tree-sitter-cpp>=0.23.4

src/docai/__main__.py

@@ -1,11 +1,8 @@
 import sys
 from pathlib import Path
 
-
 # Add 'src/' to sys.path manually
 sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
-from docai.main import main
 
-import typer
-
-typer.run(main)
+from docai.cli import app
+app()

src/docai/cli.py

@@ -18,7 +18,9 @@ CONFIG_PATHS = [
     Path().absolute() / "config.toml",
 ]
 
+app = typer.Typer(help="DocAI - Generative Documentation")
 
+@app.command()
 def main(
     files: list[Path],
     config: Path | None = typer.Option(None),
@@ -79,4 +81,4 @@ def main(
 
 
 if __name__ == "__main__":
-    typer.run(main)
+    app()