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/rooms/arcade_room.tres

@@ -52,13 +52,25 @@ metadata/_custom_type_script = "uid://r2rpbasss511"
 [sub_resource type="Resource" id="Resource_prnev"]
 script = ExtResource("2_384hm")
 cabinet_id = &"cabinet_01"
-position = Vector2(-5.9484997, 0.14750004)
+position = Vector2(-6.5578, 1.9821999)
 metadata/_custom_type_script = "uid://cwblyetugbr4d"
 
 [sub_resource type="Resource" id="Resource_dicmx"]
 script = ExtResource("2_384hm")
 cabinet_id = &"cabinet_02"
-position = Vector2(-3.5153918, 0.14274521)
+position = Vector2(-2.8978, 1.9821999)
+metadata/_custom_type_script = "uid://cwblyetugbr4d"
+
+[sub_resource type="Resource" id="Resource_df41d"]
+script = ExtResource("2_384hm")
+cabinet_id = &"cabinet_03"
+position = Vector2(-2.8978, 3.2022)
+metadata/_custom_type_script = "uid://cwblyetugbr4d"
+
+[sub_resource type="Resource" id="Resource_mmfj3"]
+script = ExtResource("2_384hm")
+cabinet_id = &"cabinet_04"
+position = Vector2(-6.5578, 3.2022)
 metadata/_custom_type_script = "uid://cwblyetugbr4d"
 
 [sub_resource type="Resource" id="Resource_vv75m"]
@@ -156,7 +168,7 @@ thickness_ft = 0.1
 script = ExtResource("3_384hm")
 room_id = &"arcade_room"
 display_name = "Arcade Escape Room"
-cabinet_placements = Array[ExtResource("2_384hm")]([SubResource("Resource_prnev"), SubResource("Resource_dicmx")])
+cabinet_placements = Array[ExtResource("2_384hm")]([SubResource("Resource_prnev"), SubResource("Resource_dicmx"), SubResource("Resource_df41d"), SubResource("Resource_mmfj3")])
 devices = Array[ExtResource("2_hg7bw")]([SubResource("Resource_vv75m"), SubResource("Resource_12s2r"), SubResource("Resource_2f6ns"), SubResource("Resource_ks63c"), SubResource("Resource_kddy2")])
 bindings = Array[ExtResource("1_icsgi")]([SubResource("Resource_icsgi"), SubResource("Resource_hg7bw"), SubResource("Resource_384hm"), SubResource("Resource_t81ly"), SubResource("Resource_clsof")])
 boundary_points = PackedVector2Array(-7.3152, -0.6096, -2.1336, -0.6096, -2.1336, 7.62, -7.3152, 7.62)