v1: Migrated poetry to uv

[FeodorFitsner]

Summary by Sourcery

Migrate Python dependency management and building from Poetry to uv.

Build:

• Convert pyproject.toml files to use standard PEP 621 metadata and setuptools build backend.
• Configure the Python SDK as a uv workspace.
• Replace poetry.lock files with uv.lock.

CI:

• Update CI workflows and scripts to install and use uv instead of poetry.
• Adapt build artifact paths and dependency patching scripts for uv.
• Download Pyodide core during the web build process.

Documentation:

• Update developer contribution guide (CONTRIBUTING.md) with uv installation and commands.

[Copilot]

Pull Request Overview

Migrates the project's dependency management and build configuration from Poetry to uv.

• Converted all pyproject.toml files to use PEP 621 metadata with uv-specific configuration and setuptools.
• Updated CI workflows and build scripts (including Appveyor) to install, build, test, and publish using uv commands.
• Revised the developer documentation in CONTRIBUTING.md to reflect the new uv installation and command usage.

Reviewed Changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
sdk/python/pyproject.toml	Switched dependency and workspace configuration from Poetry to uv.
sdk/python/packages/flet/pyproject.toml	Migrated dependency declarations, optional dependencies, and URLs to PEP 621 format.
sdk/python/packages/flet-web/pyproject.toml	Updated package-data and URL declarations with new build settings.
sdk/python/packages/flet-desktop/pyproject.toml	Simplified dependencies and shifted build backend from poetry-core to setuptools.build_meta.
sdk/python/packages/flet-cli/pyproject.toml	Updated package metadata and entry-points, and replaced poetry-specific config with project configuration.
ci/update-flet-wheel-deps.py	Adjusted dependency version insertion to use strict equality matches.
ci/patch_toml_versions.py	Changed dependency patching to iterate over a list per the new PEP 621 structure.
CONTRIBUTING.md	Updated installation and command instructions from Poetry to uv.
.appveyor.yml	Revised build, test, and publish steps to install uv, build wheels with uv, and adjust wheel artifact paths.

Files not reviewed (1)

• ci/common.sh: Language not supported

[Copilot]

The dependency version update logic in patch_dep relies on simple string matching, which might not correctly handle cases where dependencies already contain version constraints or extras. Consider using a more robust parser or regex to accurately update dependency strings.

Suggested change

	for i in range(0, len(deps)):
	dep = deps[i]
	if dep == dep_name:
	deps[i] = f"{dep_name}=={ver}"
	elif dep.startswith(f"{dep_name};"):
	deps[i] = dep.replace(f"{dep_name};", f"{dep_name}=={ver};")
	for i in range(len(deps)):
	dep = deps[i]
	# Parse dependency into components
	if ";" in dep:
	base, marker = dep.split(";", 1)
	else:
	base, marker = dep, None
	if "[" in base:
	name, extras = base.split("[", 1)
	extras = "[" + extras # Add back the opening bracket
	else:
	name, extras = base, ""
	# Update version if the dependency name matches
	if name.strip() == dep_name:
	new_base = f"{name.strip()}{extras}=={ver}"
	deps[i] = f"{new_base};{marker}" if marker else new_base

[Copilot]

[nitpick] Ensure that the sed substitution for replacing 'flet-desktop' with 'flet-desktop-light' in pyproject.toml is idempotent and targets only the intended configuration lines. Consider refining the match pattern to avoid inadvertent changes to unrelated parts of the file.

Suggested change

	sed -i 's/flet-desktop/flet-desktop-light/g' pyproject.toml
	sed -i '/^name = "flet-desktop"$/s/flet-desktop/flet-desktop-light/' pyproject.toml