Change license to All Rights Reserved (proprietary)

Replace the MIT LICENSE with an all-rights-reserved proprietary notice and
update the pyproject.toml license field to match.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014NcPuobeLq7zNBRHEn5RuU

LICENSE

@@ -1,16 +1,13 @@
-MIT License
+Copyright (c) 2026 Eliezer Avihail. All rights reserved.
 
-Copyright (c) 2026 Eliezer Avihail
+This software and its associated documentation files (the "Software") are the
+proprietary and confidential property of the copyright holder. No license,
+express or implied, is granted to any person to use, copy, modify, merge,
+publish, distribute, sublicense, or sell copies of the Software, in whole or in
+part, without the prior written permission of the copyright holder.
 
-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.
+Unauthorized copying, distribution, or use of the Software, via any medium, is
+strictly prohibited.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

pyproject.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "AI-powered chat agent for PyTorch documentation and code"
 requires-python = ">=3.11"
 readme = "README.md"
-license = { text = "MIT" }
+license = { text = "All rights reserved" }
 # Runtime deps live in requirements.txt (the single source), read in below via
 # dynamic metadata — HF Spaces installs that file directly, and `pip install .`
 # / `-e .` picks up the same list. One file, no drift.