Initial commit: Transcience MVP

Top-down twin-stick bullet-hell, Godot 4.7, server-authoritative dedicated
server with client-side prediction. Clients send input only; the server
resolves every hit for both players and enemies (no PvP).

- SimWorld: whole simulation as plain RefCounted objects (no nodes, no
  physics server), ~0.24ms/tick at peak load -- runs headless for free and
  drives 78 tests in under a second
- BulletPool: struct-of-arrays bullet storage, replicated as spawn/despawn
  events rather than per-tick state
- Emitter framework (Ring/AimedSpread/WallGap/ArcSweep) shared by trash
  enemies and bosses -- a new boss is data in src/content/content.gd, no
  simulation changes
- The Warden of the Fold: stationary 4-phase boss built entirely on that
  format
- Lobby hub with a portal into on-demand dungeon instances; one process
  hosts the hub plus every concurrent dungeon
- Emergency escape: 3s server-owned channel, cancelled by damage
- tools/check.sh, test.sh (GUT), smoke.sh (real server + bot clients over
  ENet), bench.gd; git hooks wired to the same scripts
- docs/ARCHITECTURE.md, NETCODE.md, WORKFLOW.md, ROADMAP.md

addons/gut/gui/OutputText.tscn

@@ -0,0 +1,121 @@
+[gd_scene load_steps=5 format=3 uid="uid://bqmo4dj64c7yl"]
+
+[ext_resource type="Script" uid="uid://cax5phqs8acmu" path="res://addons/gut/gui/OutputText.gd" id="1"]
+[ext_resource type="Texture2D" uid="uid://bvo0uao7deu0q" path="res://addons/gut/icon.png" id="2_b4xqv"]
+
+[sub_resource type="DPITexture" id="DPITexture_lygvu"]
+_source = "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"16\" height=\"16\"><path fill=\"#ff5d5d\" d=\"M2 1v8.586l1.293-1.293a1 1 0 0 1 1.414 0L7 10.587l2.293-2.293a1 1 0 0 1 1.414 0L13 10.586l1-1V6H9V1H2zm8 0v4h4zm-6 9.414-2 2V15h12v-2.586l-.293.293a1 1 0 0 1-1.414 0L10 10.414l-2.293 2.293a1 1 0 0 1-1.414 0L4 10.414z\"/></svg>
+"
+
+[sub_resource type="CodeHighlighter" id="CodeHighlighter_8ynmy"]
+number_color = Color(1, 1, 1, 1)
+symbol_color = Color(1, 1, 1, 1)
+function_color = Color(1, 1, 1, 1)
+member_variable_color = Color(1, 1, 1, 1)
+keyword_colors = {
+"ERROR": Color(1, 0, 0, 1),
+"ExpectedError": Color(0.6784314, 0.84705883, 0.9019608, 1),
+"Failed": Color(1, 0, 0, 1),
+"Orphans": Color(1, 1, 0, 1),
+"Passed": Color(0, 1, 0, 1),
+"Pending": Color(1, 1, 0, 1),
+"Risky": Color(1, 1, 0, 1),
+"WARNING": Color(1, 1, 0, 1)
+}
+
+[node name="OutputText" type="VBoxContainer"]
+offset_right = 862.0
+offset_bottom = 523.0
+size_flags_horizontal = 3
+size_flags_vertical = 3
+script = ExtResource("1")
+
+[node name="Toolbar" type="HBoxContainer" parent="."]
+layout_mode = 2
+size_flags_horizontal = 3
+
+[node name="ShowSearch" type="Button" parent="Toolbar"]
+layout_mode = 2
+tooltip_text = "Search"
+toggle_mode = true
+icon = ExtResource("2_b4xqv")
+
+[node name="ShowSettings" type="Button" parent="Toolbar"]
+layout_mode = 2
+tooltip_text = "Settings"
+toggle_mode = true
+text = "..."
+
+[node name="CenterContainer" type="CenterContainer" parent="Toolbar"]
+layout_mode = 2
+size_flags_horizontal = 3
+
+[node name="LblPosition" type="Label" parent="Toolbar"]
+layout_mode = 2
+
+[node name="CopyButton" type="Button" parent="Toolbar"]
+layout_mode = 2
+text = " Copy "
+
+[node name="ClearButton" type="Button" parent="Toolbar"]
+layout_mode = 2
+text = "  Clear  "
+
+[node name="Settings" type="HBoxContainer" parent="."]
+visible = false
+layout_mode = 2
+
+[node name="WordWrap" type="Button" parent="Settings"]
+layout_mode = 2
+tooltip_text = "Word Wrap"
+toggle_mode = true
+icon = SubResource("DPITexture_lygvu")
+
+[node name="UseColors" type="Button" parent="Settings"]
+layout_mode = 2
+tooltip_text = "Colorized Text"
+toggle_mode = true
+button_pressed = true
+icon = SubResource("DPITexture_lygvu")
+
+[node name="Output" type="TextEdit" parent="."]
+layout_mode = 2
+size_flags_horizontal = 3
+size_flags_vertical = 3
+theme_override_font_sizes/font_size = 30
+deselect_on_focus_loss_enabled = false
+virtual_keyboard_enabled = false
+middle_mouse_paste_enabled = false
+scroll_smooth = true
+syntax_highlighter = SubResource("CodeHighlighter_8ynmy")
+highlight_all_occurrences = true
+highlight_current_line = true
+
+[node name="Search" type="HBoxContainer" parent="."]
+visible = false
+layout_mode = 2
+
+[node name="SearchTerm" type="LineEdit" parent="Search"]
+layout_mode = 2
+size_flags_horizontal = 3
+
+[node name="SearchNext" type="Button" parent="Search"]
+layout_mode = 2
+text = "Next"
+
+[node name="SearchPrev" type="Button" parent="Search"]
+layout_mode = 2
+text = "Prev"
+
+[connection signal="pressed" from="Toolbar/ShowSearch" to="." method="_on_ShowSearch_pressed"]
+[connection signal="pressed" from="Toolbar/ShowSettings" to="." method="_on_settings_pressed"]
+[connection signal="pressed" from="Toolbar/CopyButton" to="." method="_on_CopyButton_pressed"]
+[connection signal="pressed" from="Toolbar/ClearButton" to="." method="_on_ClearButton_pressed"]
+[connection signal="pressed" from="Settings/WordWrap" to="." method="_on_WordWrap_pressed"]
+[connection signal="pressed" from="Settings/UseColors" to="." method="_on_UseColors_pressed"]
+[connection signal="focus_entered" from="Search/SearchTerm" to="." method="_on_SearchTerm_focus_entered"]
+[connection signal="gui_input" from="Search/SearchTerm" to="." method="_on_SearchTerm_gui_input"]
+[connection signal="text_changed" from="Search/SearchTerm" to="." method="_on_SearchTerm_text_changed"]
+[connection signal="text_submitted" from="Search/SearchTerm" to="." method="_on_SearchTerm_text_entered"]
+[connection signal="pressed" from="Search/SearchNext" to="." method="_on_SearchNext_pressed"]
+[connection signal="pressed" from="Search/SearchPrev" to="." method="_on_SearchPrev_pressed"]