CngxStatCoordinator

The slot-id coordination brain behind CNGX_STAT. Collects the id each cngxStat* slot registers and derives one aria-labelledby that reads the whole stat as a single accessible name in reading order.

Lives as a host directive rather than inside CngxStat because the slot directives resolve CNGX_STAT against their declaration site: content written inside an organism never reaches a <cngx-stat> that sits in that organism's own template. Any component that wants to host the four slots therefore applies this brain and re-points the token at it:

hostDirectives: [CngxStatCoordinator],
providers: [{ provide: CNGX_STAT, useExisting: CngxStatCoordinator }],

Same shape as CngxPaginate behind CNGX_PAGINATOR_HOST, which CngxPaginator and CngxIncrementalList share the same way.