fix: the pending banner now knows about the daily-restart schedule

[FMSMITH91]

Same shape as the Autostart switch — found by going looking for more of it rather than waiting for it to be reported.

Two mechanisms mean "restart once empty", and the page only knew about one:

	how it works
the panel's	restart_pending column, queued from the UI, acted on by _run_due_restarts()
the box's	set_daily_restart() writes 0 5 * * * touch ~/.restart-pending plus an hourly line that restarts once gamedig sees 0 players

The panel writes that cron and then can't see it. So with Daily restart on and players connected at 05:00, a restart genuinely is queued — and the banner that exists to say exactly that stayed hidden until it fired.

Fix

The monitor sweep already talks to every host once a minute, so it now also runs one ls -1d /home/*/.restart-pending per host and maps the paths back to game users. The detail page shows the banner for either source, and names the schedule when it's the cron's.

Display only, deliberately. Nothing writes restart_pending from the flag: the two queues stay independent, so a server can't be restarted twice by both tickers racing, and the panel's own queue is never cleared by a box that happens not to have the file.

Both halves tested — because the first version wasn't

My banner check set the dict directly, so deleting the code that populates it still passed. Mutation caught that. There's now a monitor test that drives a real pass with the flag stubbed:

banner mutation  -> 1 check fails
monitor mutation -> 3 checks fail

unit 839 · smoke 300 → 307 · rbac 65 · manage 21 · template_actions 7 · lint clean.

🤖 Generated with Claude Code

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

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🟢 Coverage 50.00% diff coverage · +0.48% coverage variation

Metric	Results
Coverage variation	✅ +0.48% coverage variation (-1.00%)
Diff coverage	✅ 50.00% diff coverage

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Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (b1ec072)	11957	5772	48.27%
Head commit (9b6e464)	11965 (+8)	5833 (+61)	48.75% (+0.48%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#70)	8	4	50.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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