refactor: simplify lobby server architecture and update app metadata

* remove legacy data bridge, RPC, and server bootstrap files
* simplify lobby scene and node hierarchy
* rename lobby UI scene path and update signal handlers
* replace the application icon and configure the boot splash
* add project description and version metadata

scenes/screens/lobby_screen/lobby.gd

@@ -1,11 +1,8 @@
 class_name Lobby extends LobbyBase
 
 
-@onready var rpc_signals: Node = $rpc_signals
-
 
 func _ready() -> void:
-	Globals.lobby_data.lobby_ui = self
 	setup_signals()
 
 func _exit_tree() -> void:

scenes/screens/lobby_screen/lobby.tscn

@@ -1,34 +1,23 @@
-[gd_scene load_steps=5 format=3 uid="uid://dkes5cdu45q6e"]
+[gd_scene load_steps=4 format=3 uid="uid://dkes5cdu45q6e"]
 
 [ext_resource type="Script" uid="uid://dk7afnf7ol7dy" path="res://scenes/screens/lobby_screen/lobby.gd" id="1_hhiik"]
-[ext_resource type="PackedScene" uid="uid://rb6av5eg4u0" path="res://scenes/ui_controls/lobby_screen/lobby_ui.tscn" id="2_lqt48"]
-[ext_resource type="Script" uid="uid://6sfwe1hwgf0g" path="res://scenes/screens/lobby_screen/lobby_rpc.gd" id="3_rurl6"]
+[ext_resource type="PackedScene" uid="uid://rb6av5eg4u0" path="res://scenes/ui_controls/lobby/ui.tscn" id="2_lqt48"]
 [ext_resource type="Script" uid="uid://crbm3v4td6du6" path="res://scenes/screens/lobby_screen/lobby_server.gd" id="4_glu7g"]
 
-[node name="lobby_screen" type="Control"]
-layout_mode = 3
-anchors_preset = 15
-anchor_right = 1.0
-anchor_bottom = 1.0
-grow_horizontal = 2
-grow_vertical = 2
+[node name="lobby" type="Node"]
 script = ExtResource("1_hhiik")
 
 [node name="ui" parent="." instance=ExtResource("2_lqt48")]
-layout_mode = 1
 theme_override_constants/margin_left = 10
 theme_override_constants/margin_top = 10
 theme_override_constants/margin_right = 10
 theme_override_constants/margin_bottom = 10
 
-[node name="rpc_signals" type="Node" parent="."]
-script = ExtResource("3_rurl6")
-
 [node name="server" type="Node" parent="."]
 script = ExtResource("4_glu7g")
 
 [connection signal="pressed" from="ui/body/left_body/server_host_hbox/host_start_bttn" to="." method="_on_host_start_bttn_pressed"]
 [connection signal="pressed" from="ui/body/left_body/server_host_hbox/host_stop_bttn" to="." method="_on_host_stop_bttn_pressed"]
-[connection signal="button_up" from="ui/body/left_body/search_vbox/search_hbox/match_search_bttn" to="." method="_on_match_search_bttn_button_up"]
+[connection signal="pressed" from="ui/body/left_body/search_vbox/search_hbox/match_search_bttn" to="." method="_on_match_search_bttn_pressed"]
 
 [editable path="ui"]

scenes/screens/lobby_screen/lobby_base.gd

@@ -1,4 +1,4 @@
-class_name LobbyBase extends Control
+class_name LobbyBase extends Node
 
 
 const MATCH_ENTRY                         = preload("res://scenes/screens/lobby_screen/match_entry.tscn")
@@ -15,12 +15,6 @@ const MATCH_ENTRY                         = preload("res://scenes/screens/lobby_
 @onready var server: Node = $server
 
 
-
-func _on_home_bttn_pressed() -> void:
-	Globals.game_state.set_game_scene(
-		"res://scenes/screens/start_screen/start.tscn"
-	)
-
 func _on_host_start_bttn_pressed() -> void:
 	server.start_server(host_address_input.text, int(host_port_range.value))
 
@@ -32,8 +26,5 @@ func _on_host_stop_bttn_pressed() -> void:
 	host_start_bttn.visible   = true
 	host_stop_bttn.visible    = false
 
-func _on_search_bttn_pressed() -> void:
-	pass
-
-func _on_match_search_bttn_button_up() -> void:
+func _on_match_search_bttn_pressed() -> void:
 	pass

scenes/screens/lobby_screen/lobby_rpc.gd

@@ -1 +0,0 @@
-extends Node

scenes/screens/lobby_screen/lobby_rpc.gd.uid

@@ -1 +0,0 @@
-uid://6sfwe1hwgf0g