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

data/scenarios/three_cabinet_objective_test.tres

@@ -0,0 +1,47 @@
+[gd_resource type="Resource" script_class="ScenarioDefinition" format=3 uid="uid://coylqrwbr26tb"]
+
+[ext_resource type="Script" uid="uid://d3pt6qa05kcnl" path="res://core/scenarios/scenario_definition.gd" id="1"]
+[ext_resource type="Script" uid="uid://ibujr0ervhhq" path="res://core/scenarios/scenario_assignment.gd" id="2"]
+[ext_resource type="Resource" uid="uid://cl4j1vtv388pt" path="res://data/cabinets/cabinet_01.tres" id="3"]
+[ext_resource type="Script" uid="uid://lixrugm1v2d2" path="res://core/scenarios/scenario_event_mapping.gd" id="3_my636"]
+[ext_resource type="Resource" uid="uid://d1gyyfaaclas8" path="res://data/cabinets/cabinet_02.tres" id="4"]
+[ext_resource type="Resource" uid="uid://d4ns05ptr4ybw" path="res://data/cabinets/cabinet_03.tres" id="5"]
+[ext_resource type="Resource" uid="uid://c3v8o4nubjakg" path="res://data/games/pacman.tres" id="6"]
+[ext_resource type="Resource" uid="uid://cnfhiky5834pw" path="res://data/games/galaga.tres" id="7"]
+[ext_resource type="Resource" path="res://data/games/frogger.tres" id="8"]
+
+[sub_resource type="Resource" id="First"]
+script = ExtResource("2")
+cabinet = ExtResource("3")
+game = ExtResource("6")
+game_config = {
+"boards_to_win": 0,
+"score_to_win": 0,
+"test_auto_win_seconds": 5.0
+}
+
+[sub_resource type="Resource" id="Second"]
+script = ExtResource("2")
+cabinet = ExtResource("4")
+game = ExtResource("7")
+activate_after_win = &"cabinet_01"
+game_config = {
+"score_to_win": 500,
+"stages_to_win": 0
+}
+
+[sub_resource type="Resource" id="Third"]
+script = ExtResource("2")
+cabinet = ExtResource("5")
+game = ExtResource("8")
+activate_after_win = &"cabinet_02"
+game_config = {
+"boards_to_win": 0,
+"homes_to_win": 1
+}
+
+[resource]
+script = ExtResource("1")
+scenario_id = &"three_cabinet_objective_test"
+display_name = "3-Cabinet Test: 5 seconds / 500 points / 1 frog"
+assignments = Array[ExtResource("2")]([SubResource("First"), SubResource("Second"), SubResource("Third")])