Expand Glitch operations hub, cabinet authoring, deployment, and RFID support

Operator hub
- Introduce Escape Gallery branding and Glitch: the Dark Machine room views
- Add cabinet illustrations, Pac-Man marquee/gameplay artwork, and waiting states
- Add device feedback panels with RFID readings, input/output states, and stale status
- Add logged operator hardware interventions with request deduplication

Room and cabinet authoring
- Add a visual custom-PCB connection editor with per-cabinet device inventory
- Support device IDs, bindings, wiring notes, input polarity, and validation
- Add physical-room label/dimension toggles and editable doorway annotations
- Preserve doorway changes through undo, save, and revert
- Expand cabinet profiles, room layout, and Glitch scenario resources

Scenarios and gameplay
- Add per-assignment game configuration and runtime feature validation
- Add timed test wins and Frogger individual-home objectives
- Add the three-cabinet timed/score/Frogger test scenario
- Add Cabinet 1 Pac-Man RFID credits, credit sound, and CREDIT 0/1 display
- Require physical Start after an accepted scan and prevent duplicate credits

Pi hardware and deployment
- Add GPIO feedback sampling and a separate multiplexed RFID helper
- Validate reader pin ownership and input/output conflicts
- Add SSH cabinet startup and Pi desktop-session service support
- Add master packaging, site setup, SSH enrollment, and staged cabinet releases
- Verify deployment manifests and support explicit activation/status/log commands

Documentation and verification
- Consolidate the root README around the current architecture and setup workflow
- Add the complete master/Pi/RFID export and deployment walkthrough
- Document network isolation, credentials, card identification, and rollback
- Add PCB, room-editor, feedback, credit, deployment, and controller tests
- Isolate protocol tests from designer-edited cabinet configurations

Known limitations
- RFID helper compilation and physical Pi commissioning remain unverified
- Fleet provisioning does not yet configure RFID-only installations completely
- Broader Pac-Man tests retain a ghost-capture assertion failure
- Staged exports must be rebuilt and checked before deploying runtime 2.3

ui/room_layout.gd

@@ -82,6 +82,8 @@ var highlighted_bindings: Dictionary = {}
 
 var binding_labels: Array[Label] = []
 var show_connections: bool = true
+var show_labels: bool = true
+var show_dimensions: bool = true
 
 var selected_binding_key: String = ""
 
@@ -178,6 +180,7 @@ func _rebuild() -> void:
 	_build_cabinets()
 	_build_devices()
 	_build_binding_labels()
+	set_labels_visible(show_labels)
 
 	queue_redraw()
 
@@ -976,7 +979,7 @@ func set_connections_visible(
 	show_connections = visible
 
 	for label in binding_labels:
-		label.visible = visible
+		label.visible = visible and show_labels
 
 	queue_redraw()
 
@@ -1703,7 +1706,7 @@ func _draw_dimension_label(
 	text: String
 ) -> void:
 
-	if text.is_empty():
+	if not show_dimensions or text.is_empty():
 		return
 
 	var font := (
@@ -2075,7 +2078,7 @@ func _draw_walls() -> void:
 	if room == null:
 		return
 
-	for wall in room.walls:
+	for wall in _ordered_walls():
 		if wall == null:
 			continue
 
@@ -2111,13 +2114,7 @@ func _draw_walls() -> void:
 
 			width += 3.0
 
-		draw_line(
-			start,
-			end,
-			wall_color,
-			width,
-			true
-		)
+		_draw_wall_or_door(wall, start, end, wall_color, width)
 		
 		#
 		# Wall dimension.
@@ -2867,7 +2864,9 @@ func _find_wall_at_screen_position(
 
 	var hit_radius_pixels: float = 10.0
 
-	for wall in room.walls:
+	var ordered := _ordered_walls()
+	ordered.reverse()
+	for wall in ordered:
 		if wall == null:
 			continue
 
@@ -3987,3 +3986,72 @@ func _get_cabinet_profile(
 			return assignment.cabinet
 
 	return null
+
+
+func set_labels_visible(value: bool) -> void:
+	show_labels = value
+	for item in item_nodes.values():
+		item.title_label.visible = value
+		item.subtitle_label.visible = value
+		item.tooltip_text = item.base_title + "\n" + item.base_subtitle
+	for label in binding_labels:
+		label.visible = value and show_connections
+	queue_redraw()
+
+func set_dimensions_visible(value: bool) -> void:
+	show_dimensions = value
+	queue_redraw()
+
+func _ordered_walls() -> Array[RoomWallDefinition]:
+	var ordered: Array[RoomWallDefinition] = []
+	for wall in room.walls:
+		if wall != null and not wall.is_doorway:
+			ordered.append(wall)
+	for wall in room.walls:
+		if wall != null and wall.is_doorway:
+			ordered.append(wall)
+	return ordered
+
+# Openings are projected onto collinear wall segments without destroying geometry.
+func _wall_solid_ranges(wall: RoomWallDefinition) -> Array[Vector2]:
+	var ranges: Array[Vector2] = [Vector2(0, 1)]
+	var delta := wall.end - wall.start
+	if delta.length_squared() < 0.000001:
+		return ranges
+	for door in room.walls:
+		if door == null or not door.is_doorway:
+			continue
+		var tolerance := maxf(wall.thickness * 0.5, 0.02)
+		if absf(delta.cross(door.start - wall.start)) / delta.length() > tolerance or absf(delta.cross(door.end - wall.start)) / delta.length() > tolerance:
+			continue
+		var a := delta.dot(door.start - wall.start) / delta.length_squared()
+		var b := delta.dot(door.end - wall.start) / delta.length_squared()
+		var low := minf(a, b)
+		var high := maxf(a, b)
+		var next: Array[Vector2] = []
+		for segment in ranges:
+			if high <= segment.x or low >= segment.y:
+				next.append(segment)
+			else:
+				if low > segment.x:
+					next.append(Vector2(segment.x, low))
+				if high < segment.y:
+					next.append(Vector2(high, segment.y))
+		ranges = next
+	return ranges
+
+func _draw_wall_or_door(wall: RoomWallDefinition, start: Vector2, end: Vector2, color: Color, width: float) -> void:
+	if not wall.is_doorway:
+		for segment in _wall_solid_ranges(wall):
+			draw_line(start.lerp(end, segment.x), start.lerp(end, segment.y), color, width, true)
+		return
+	var direction := end - start
+	if direction.length() < 1.0:
+		return
+	var angle := direction.angle()
+	var swing := -PI / 2.0 if wall.swing_reversed else PI / 2.0
+	var door_color := Color("67d5c5") if wall.wall_id != selected_wall_id else color
+	draw_dashed_line(start, end, door_color, 1.5, 5.0)
+	draw_line(start, start + direction.rotated(swing), door_color, 2.0, true)
+	draw_arc(start, direction.length(), minf(angle, angle + swing), maxf(angle, angle + swing), 32, door_color, 1.5, true)
+	draw_circle(start, 4.0, door_color)