[smalluban]

Until now a Promise could only be rendered through the html.resolve() helper, even though in most real-world cases the pending placeholder it provides is not needed and the extra wrapper is just noise in the template.

Content expressions now accept a Promise directly: the current content stays in place until the promise settles, then the resolved value is rendered by the same rules as any other content value (template, array, Node or primitive), and a stale promise is ignored when the expression is updated before it resolves. The logic lives in a new resolvers/promise.js, with resolveValue only mapping a promise lastValue to the actually rendered value so type-change cleanup and DOM reuse keep working. Tests, docs and the html.resolve type comment are updated accordingly; html.resolve() remains available for cases that need a placeholder.

[coveralls]

coverage: 99.874% (+0.001%) from 99.873% — feat/html-promise-content into main