canon new lib|exe creates a project following P1204R0 (Canonical Project
Structure) with a .canon.toml manifest and a CMakeLists.txt whose managed
block is rendered from that manifest.
Generators return a plan; the executor checks every operation before
writing, so conflicts write nothing and --dry-run writes nothing.
Tests: unit tests next to each source file, golden copies of generated
projects, and an end-to-end build of both project kinds.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
paulhorn
ab5c468ace