fix(runtime): publish progress from parent ticks

[miguel-heygen]

What

Keep embedded-player progress updates moving when the iframe's animation frames are throttled.

This retains the verified progress-reporting fix from the stale-PR cleanup. Navigation and reload recovery remain deferred.

Related: #3554

Why

Parent ticks already advance playback, but ordinary ticks do not report the new position to the embedder. Playback can therefore continue while currentTime and timeupdate remain stale.

How

Publish ordinary parent-tick progress through the existing state deduper. Preserve the single forced stopped-state publication at natural end.

Test plan

• Unit tests added/updated — regression fails without the fix; current runtime initialization suite passes 113/113, with 72/72 adjacent bridge and clock tests.
• Manual testing performed — real cross-origin browser fixture with child animation frames suppressed verifies progress, stable pause, one natural-end event, and looping.
• Documentation updated (if applicable) — not applicable.

Full repository commit hooks passed, including core, Studio, and scripts typechecks, Fallow, formatting, linting, artifact guards, and commitlint.