#77's core (pad/snap schedules to :00/:15/:30 via filler) already exists —
FillerMode.Pad + PadToNearestMinute (Classic), pad_to_next/pad_until
(Sequential); Block is inherently time-anchored. No production code change;
this locks the behaviour end-to-end and documents that it exists.
- PlayoutBuildGoldenTests.Classic_clock_padded: a PostRoll FillerMode.Pad(15)
preset through the real PlayoutBuilder snaps content to :15 (golden +
explicit quarter-hour assertion). Splits Verify -> CompareGolden for reuse.
- ChannelGuideProjectorClockPadTests: the guide projection coalesces trailing
filler so programmes STOP on the padded boundary (XMLTV half).
- docs: decisions.md (2026-07-17 entry), domain-model.md (clock-boundary row),
testing.md (test map + count 540->542).
Deferred (UI, blocked on #388): one-click per-channel/schedule clock-align
toggle + 60-min increment option.
Refs #77
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
timothyandClaude Opus 4.8
7e6b9d2747