Add MIT LICENSE and crates.io metadata

Sets license, readme, repository, keywords and categories so cargo
publish / cargo install pick up the right info. Repo URL points at
the real git.aleshym.co remote.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Cargo.toml

@@ -2,7 +2,12 @@
 name = "umutray"
 version = "0.1.0"
 edition = "2021"
-description = "Battle.net launcher manager for Linux via umu/Proton-GE"
+description = "Tray-based Wine launcher manager for Linux via umu/Proton-GE"
+license = "MIT"
+readme = "README.md"
+repository = "https://git.aleshym.co/funman300/umutray"
+keywords = ["wine", "proton", "umu", "tray", "launcher"]
+categories = ["command-line-utilities", "games"]
 
 [[bin]]
 name = "umutray"

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 umutray contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.