chore: bump version to 1.0.0

[dwilding]

No description provided.

[Copilot]

Pull request overview

Releases gimmegit as version 1.0.0 by updating the declared project version and keeping the lockfile and runtime version constant with that release.

Changes:

• Update pyproject.toml project version from 1.0.0.dev0 to 1.0.0.
• Update src/gimmegit/_version.py runtime __version__ from 1.0.0.dev0 to 1.0.0.
• Update uv.lock editable package entry version from 1.0.0.dev0 to 1.0.0.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
pyproject.toml	Sets the package’s released project version to 1.0.0.
src/gimmegit/_version.py	Aligns the runtime-reported __version__ with the release version.
uv.lock	Keeps the lockfile’s editable gimmegit package version in sync with the release.