Phase 17/18 closure: stockpile filter UI + day summary + atmospheric audio
Three-agent fan-out (gdscript-refactor x3) closing deferred polish:
- Stockpile chip filter UI: new StockpilePanel (layer 18, right-anchored,
mirrors WorkbenchPanel). 5-priority segmented control + 21-chip 4-col
filter grid using Item.ALL_TYPES; wildcard (empty accepted_types) shows
all chips checked with 'All' hint, first explicit pick switches to
explicit-list mode. Selection chain extended to pawn → workbench →
stockpile with mutual exclusion. 12 ui.stockpile.* + 13 item.* keys.
- DaySummaryCard: layer-19 modal auto-opens at dusk→night via day_ended,
auto-pauses sim, shows day+season header, weather row, stats grid with
green/yellow/red tension bar, Continue dismiss + backdrop tap.
Settings 'Show end-of-day summary' toggle persists via GameState.
- Atmospheric audio: rain ambient loop (Cozy Melodies Pack 6) on
weather_changed rain/storm with 0.5s fade-out on clear; thunder sting
(Magic and Spells 6) on rain→storm transition; raid warning sting
(Sword Pack 1, 'blades drawn') on EventBus.wolf_spawned. All on SFX
bus — inherits existing slider + suspend mute.
Contracts pre-written before fan-out: EventBus.stockpile_selected /
stockpile_deselected / wolf_spawned signals; WolfSpawner._trigger_raid
+ _on_request_wolf_spawn now emit wolf_spawned with the spawned array.
MCP runtime verified: StockpilePanel opens with 21 chips, DaySummaryCard
renders weather row + tension bar + auto-pause, rain_player.playing=true
on weather_changed(rain), all three new SFX keys in Audio.SFX_FILES.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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