Add MIT license, full README and CLAUDE.md

- LICENSE: MIT, referenced from pyproject.toml metadata.
- README: explains what the project is, how to install conandeps with uv,
  every option, exit codes, a worked example with a conflict/override
  walkthrough, how it works internally, and the container dev workflow.
- CLAUDE.md: hard constraints (Conan 1.66 only, Python <3.12, all work in
  the container, private remote "knor" never available in tests) and the
  design decisions behind conandeps so future sessions do not revisit them.
- Ignore uv build output (dist/).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EYNdaGDrpaqDyT8QtrTQbM

pyproject.toml

@@ -2,6 +2,10 @@
 name = "conan-utils"
 version = "0.1.0"
 description = "Small utilities for Conan 1.x (targets 1.66)"
+readme = "README.md"
+license = "MIT"
+license-files = ["LICENSE"]
+authors = [{ name = "Ole-Morten Duesund" }]
 # Conan 1.x imports the `imp` module, which was removed in Python 3.12.
 requires-python = ">=3.8,<3.12"
 dependencies = ["conan>=1.66,<2"]