Cluaupp 0.7.0 handoff

Cluaupp 0.7.0 handoff

Pin CL++ 0.7.0 in KartzRbx/Cluaupp:

1. README / templates / tests: require clpp --version 0.7.0. Refuse older compilers.
2. Optional npm packages @cluaupp/clpp-win32-x64, @cluaupp/clpp-linux-x64, @cluaupp/clpp-darwin-arm64 (and x64) wrapping GitHub Release binaries.
3. cluaupp watch must not use spawnSync for every keystroke — spawn clpp lsp or reuse a long-lived clpp api process.
4. Consume sourceMap from clpp api compile / *.luau.map to map Luau diagnostics back to .clpp.
5. Language id clpp also covers .flare .mint .bloom .helm .shift .hive .axiom.
6. Cross-check stdlib/libs.json against Janitor (Add/Cleanup, not Sweep) and DataService (WaitFor/Keep mapped if the runtime differs).
7. Mason / editor installers should consume GitHub Release assets listed in editors/mason/registry.json (v0.7.0).