update packaging for dora 1.0 and uv

dora-rs 1.0.1 requires Python 3.11+. Drops the numpy<2 pin, which the
littlehand lockfile shows is unnecessary with the current xArm SDK, and
moves to hatchling with a uv lockfile that CI installs with --locked so a
dependency change that was never locked cannot reach main.

Removes scripts/install.sh: uv sync is the whole install now.

pyproject.toml

@@ -1,28 +1,42 @@
 [project]
 name = "dora-ulite6"
-version = "0.1.2"
-license = "MIT"
-authors = [
-  { name = "Dora" }
-]
-description = "Dora node for controlling the UFactory Lite6 robot"
-
-requires-python = ">=3.12"
+version = "0.3.0"
+description = "Dora node for a UFactory Lite6 arm: motion and control services, and joint and tool-pose telemetry"
+readme = "README.md"
+license = { text = "MIT" }
+# dora-rs 1.0 requires 3.11; the driver uses zip(strict=) and PEP 604 unions.
+requires-python = ">=3.11"
 
 dependencies = [
-  "dora-rs == 0.5.0",
-  "numpy < 2.0.0",
-  "scipy >= 1.14.0",
+  "dora-rs >= 1.0.1",
+  "numpy >= 2.0",
+  "pyarrow >= 17.0",
+  "scipy >= 1.14",
   "xarm-python-sdk >= 1.17.3",
-  "fastapi >= 0.109.0",
-  "uvicorn >= 0.27.0",
 ]
 
-[dependency-groups]
-dev = ["pytest >=8.1.1", "ruff >=0.9.1"]
-
 [project.scripts]
 dora-ulite6 = "dora_ulite6.main:main"
 
-[tool.setuptools]
+[dependency-groups]
+dev = ["pytest >= 8.1", "ruff >= 0.9"]
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
 packages = ["dora_ulite6"]
+
+[tool.ruff]
+line-length = 110
+
+[tool.ruff.lint]
+extend-select = ["D", "I", "N", "RET", "UP"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "numpy"
+
+[tool.ruff.lint.per-file-ignores]
+# Test names are the documentation here; a docstring would only repeat them.
+"tests/*" = ["D1"]