sprint A cleanup: accessibility, signals, race, debris

G: large_text scales global theme font (14→20 at 1.4×) via new
GameState.get_font_scale + EventBus.settings_changed. reduce_motion
gates ResumeToast fade (HintOverlay already gated).

I: InspectTooltip long-press wired (500ms hold, 12px drift cancel,
tap-to-clear pin). Stale Phase 19 TODO replaced with accurate doc.

H: Pawn.arrived_at_destination now also emitted on
EventBus.pawn_arrived_at_destination; DirtinessSystem subscribes and
bumps indoor traffic dirt (BUMP_INDOOR_TRAFFIC = 0.2). Outdoor-tracked
bump needs Pawn.prev_tile — flagged for Phase 20.

P: CraftingProvider caches ingredient item ref on Job.ingredient_item;
JobRunner._tick_pickup validates is_instance_valid + not being_carried
before the tile scan, cancels cleanly if another pawn grabbed it.

J: rest_provider.gd deleted. Removed @onready + register call from
world.gd, ext_resource + node from world.tscn. Provider count comment
updated to 9.

M: DIRTY_THRESHOLD extracted — cleaning_provider and job_runner now
reference DirtinessSystem.DIRT_DIRTY_THRESHOLD.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scenes/world/dirtiness_system.gd

@@ -22,10 +22,9 @@ class_name DirtinessSystem extends Node
 ## This keeps signal volume low since bumps fire 20×/s per pawn crossing.
 ##
 ## Pawn tile-change hook:
-##   World scene calls bump_pawn_traffic(tile, indoor) each time a pawn advances
-##   a tile. Indoor traffic adds 0.2; outdoor-tracked-in adds 0.5.
-##   (world.gd bridges _advance_walk → DirtinessSystem via the arrived_at_destination
-##   signal on each Pawn — wired in world.gd _spawn_sample_pawns / _on_pawn_ready.)
+##   _ready() connects to EventBus.pawn_arrived_at_destination.  Indoor arrivals bump
+##   BUMP_INDOOR_TRAFFIC (0.2); outdoor arrivals are skipped.  Phase 20 can upgrade to
+##   BUMP_OUTDOOR_TRACKED (0.5) on outdoor→indoor transitions once Pawn.prev_tile lands.
 ##
 ## Wire as child of the World scene (after Pathfinder). world.gd exposes the
 ## instance on the World autoload as World.dirtiness_system for entity code.
@@ -34,6 +33,10 @@ class_name DirtinessSystem extends Node
 ## Keys = Vector2i tile coords; Values = float in [0, 100].
 var dirt_map: Dictionary = {}
 
+
+func _ready() -> void:
+	EventBus.pawn_arrived_at_destination.connect(_on_pawn_arrived_at_destination)
+
 ## Tier boundaries (thresholds match design.md; tune Phase 20).
 const DIRT_DIRTY_THRESHOLD:  float = 25.0
 const DIRT_FILTHY_THRESHOLD: float = 60.0
@@ -71,13 +74,23 @@ func bump_clean(tile: Vector2i, amount: float) -> void:
 	_set_dirt(tile, old_val, new_val)
 
 
-## Traffic-driven dirt bump.  Called by World when a pawn arrives at a new tile.
-## `indoor` = true when the tile is inside a roofed room (World.is_indoor check).
+## Traffic-driven dirt bump.  Called internally by _on_pawn_arrived_at_destination.
+## `indoor` = true when the destination tile is inside a roofed room (World.is_indoor check).
 func bump_pawn_traffic(tile: Vector2i, indoor: bool) -> void:
 	var amount := BUMP_INDOOR_TRAFFIC if indoor else BUMP_OUTDOOR_TRACKED
 	bump(tile, amount)
 
 
+## Pawn arrival handler — wired to EventBus.pawn_arrived_at_destination in _ready().
+## Skips outdoor arrivals (no floor to dirty); bumps indoor tiles by BUMP_INDOOR_TRAFFIC.
+## Phase 20 follow-up: add Pawn.prev_tile tracking so an outdoor→indoor transition can
+## instead use BUMP_OUTDOOR_TRACKED (0.5) to model boots tracking mud in.
+func _on_pawn_arrived_at_destination(_pawn, dest_tile: Vector2i) -> void:
+	if not World.is_indoor(dest_tile):
+		return  # Only dirtiness indoor floor tiles.
+	bump_pawn_traffic(dest_tile, true)
+
+
 # ── save / load ───────────────────────────────────────────────────────────────
 
 ## Serialise the sparse dirt map as an array of {x, y, v} dicts.

scenes/world/world.gd

@@ -129,7 +129,6 @@ const SEASON_TINTS: Dictionary = {
 @onready var pathfinder: Pathfinder = $Pathfinder
 @onready var selection: Selection = $Selection
 @onready var designation_ctl: Designation = $DesignationCtl
-@onready var rest_provider: RestProvider = $RestProvider
 @onready var chop_provider: ChopProvider = $ChopProvider
 @onready var mine_provider: MineProvider = $MineProvider
 @onready var hauling_provider: HaulingProvider = $HaulingProvider
@@ -216,9 +215,9 @@ func _ready() -> void:
 	# completion (Tree.fell, Wall._complete, etc.).
 	World.designation_ctl = designation_ctl
 
-	# Register all 10 providers — Decision iterates by .priority desc.
+	# Register all 9 providers — Decision iterates by .priority desc.
 	# doctor=9 > sleep=8 > eat=7 > construction=6 > chop=5 ≈ plant=5 > mine=4
-	# ≈ crafting=4 > haul=3 > rest=0.
+	# ≈ crafting=4 > haul=3 > clean=2.
 	# Phase 17 will tune these via the work-priority matrix UI.
 	World.register_work_provider(doctor_provider)
 	World.register_work_provider(sleep_provider)
@@ -229,8 +228,7 @@ func _ready() -> void:
 	World.register_work_provider(crafting_provider)
 	World.register_work_provider(plant_provider)
 	World.register_work_provider(hauling_provider)
-	World.register_work_provider(cleaning)  # priority 2 — between haul (3) and rest (0)
-	World.register_work_provider(rest_provider)
+	World.register_work_provider(cleaning)  # priority 2 — between haul (3) and idle
 
 	# Phase 5: bridge designation paint events → spawn the ghost-state entity
 	# at that tile and register it as a build site.

scenes/world/world.tscn

@@ -4,7 +4,6 @@
 [ext_resource type="PackedScene" uid="uid://rimlike_camera_rig" path="res://scenes/world/camera_rig.tscn" id="2_camera"]
 [ext_resource type="Script" path="res://scenes/world/pathfinder.gd" id="3_pathfinder"]
 [ext_resource type="Script" path="res://scenes/world/selection.gd" id="4_selection"]
-[ext_resource type="Script" path="res://scenes/ai/rest_provider.gd" id="5_rest_provider"]
 [ext_resource type="Script" path="res://scenes/ai/chop_provider.gd" id="6_chop_provider"]
 [ext_resource type="Script" path="res://scenes/ai/mine_provider.gd" id="7_mine_provider"]
 [ext_resource type="Script" path="res://scenes/ai/hauling_provider.gd" id="8_hauling_provider"]
@@ -60,10 +59,6 @@ script = ExtResource("4_selection")
 [node name="DesignationCtl" type="Node" parent="."]
 script = ExtResource("10_designation")
 
-[node name="RestProvider" type="Node" parent="."]
-script = ExtResource("5_rest_provider")
-rest_tile = Vector2i(50, 50)
-
 [node name="ChopProvider" type="Node" parent="."]
 script = ExtResource("6_chop_provider")