[sports] Two schema settings are never read by the shared sports engine

[ChuckBuilds]

Plugins

All scoreboards carrying the shared sports engine — found in afl-scoreboard 1.19.2, and the settings are present in the sibling schemas too.

Describe the bug

Two settings appear in the configuration UI with defaults, and nothing reads them.

dynamic_duration.min_duration_seconds (default 30)

Only max_duration_seconds is consulted:

if "max_duration_seconds" in source:
    cap = float(source.get("max_duration_seconds"))

There is no corresponding floor, so setting a minimum has no effect on how long a mode stays on screen.

background_service.max_workers (default 3)

request_timeout, max_retries and priority are all read from the config, but the service is constructed with a hard-coded single worker:

self.cache_manager, max_workers=1

So the setting is inert, and a user raising it to speed up fetching gets nothing.

Why this matters

Both are the kind of setting someone reaches for when a board feels slow or a mode flashes past. Silently doing nothing sends them looking in the wrong place.

Suggested fix

For each: either wire it up, or remove it from the schema. Whichever you prefer, it wants doing across the lineage in one change — these files are copied per scoreboard, so a fix in one has to be ported to its siblings in the same PR (per docs/plugin-development/08-shared-sports-code.md).

I have deliberately not touched these while #359 and #366 are open, since both already touch all seven scoreboards. Happy to take it once they land — say the word.

Documented as known limitations in #358 in the meantime.