⭐ Component Store

@ngrx/component-store — real source, 271/271 tests passing, 0 lint errors. The first module with no @ngrx/store dependency — no composition-over-inheritance ripple to adapt to, unlike every store-dependent module added before it.

Audited clean; fixed a real TypeScript strictness gap found during the addition and dropped vestigial dead config left over from the original import. Not yet covered by the code review audit; queued behind store-devtools.