Use pyproject.toml + uv_build

This replaces setup.py by a modern pyproject.toml using uv_build
backend.

Dependencies are being also managed by uv, so to install dependencies
and run the project one can execute:

```
uv sync
uv run pytest # optional
python -m avp
```

To build the both source and binary (wheel) distribution package run:
```
uv build
```

Uv can be installed with `pip install uv`.

The directory structure has been changed to reflect best practices.
- src/* -> src/avp/
- src/tests -> ../tests

1 files changed, 55 insertions, 0 deletions

diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..58fb936
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,55 @@
+[build-system]
+requires = ["uv_build>=0.9.23,<0.10.0"]
+build-backend = "uv_build"
+
+[project]
+name = "audio-visualizer-python"
+description = "Create audio visualization videos from a GUI or commandline"
+version = "2.1.0"
+requires-python = ">= 3.13"
+license = "MIT"
+classifiers=[
+  "Development Status :: 4 - Beta",
+  "License :: OSI Approved :: MIT License",
+  "Programming Language :: Python :: 3 :: Only",
+  "Intended Audience :: End Users/Desktop",
+  "Topic :: Multimedia :: Video :: Non-Linear Editor",
+]
+keywords = [
+  "visualizer",
+  "visualization",
+  "commandline video",
+  "video editor",
+  "ffmpeg",
+  "podcast",
+]
+authors = [
+  {name = "Martin Kaistra", email = "admin@djfun.de"},
+  {name = "Brianna Rainey", email = "rutachigal@gmail.com"},
+  {name = "DH4", email = "wayne@bitstorm.pw"},
+  {name = "HunterwolfAT", email = "hunterwolf0815@gmail.com"},
+  {name = "rikai"},
+]
+dependencies = [
+    "numpy>=2.4.1",
+    "pillow>=12.1.0",
+    "pyqt6>=6.10.2",
+]
+
+[dependency-groups]
+dev = [
+  "pytest",
+  "pytest-qt",
+]
+
+[tool.uv.build-backend]
+module-name = "avp"
+
+[external]
+dependencies = ["pkg:generic/ffmpeg"]
+
+[project.urls]
+repository="https://github.com/djfun/audio-visualizer-python"
+
+[project.scripts]
+avp = "avp.cli:main"