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/data/lobby_data.gd

@@ -0,0 +1,165 @@
+class_name LobbyData extends Node
+
+
+var uuid                          = null
+var IS_VALID_CHARS_REGEX: RegEx   = RegEx.create_from_string("^[a-zA-Z0-9]+$")
+
+const MATCH_TYPES: Array          = ["8ball", "9ball", "snooker", "freeball"]
+const CLIENT_DICT: Dictionary     = {
+	"id": "",
+	"partner_id": "",
+	"in_match": false,
+	"match_id": ""
+}
+const MATCH_POOL_ENTRY: Dictionary = {
+	"player1":  "",
+	"player2": "",
+	"data": {}
+}
+
+var active_match_pool: Dictionary  = {}
+var match_pool: Dictionary         = {}
+var client_pool: Dictionary        = {}
+
+
+func _init() -> void:
+	Globals.lobby_data = self
+
+	uuid = load('res://addons/uuid/uuid.gd')
+
+
+func _delete_from_match_pool(match_id: String) -> Dictionary:
+	if not match_pool.has(match_id): return {}
+
+	var to_delete: Dictionary = match_pool[match_id].data
+	match_pool.erase(match_id)
+
+	return to_delete
+
+func _launch_game_server(
+	match_entry: Dictionary,
+	client1: Dictionary,
+	client2: Dictionary
+) -> void:
+	var port: String = InstanceLauncher.launch_game_server(match_entry.data)
+	if port == "-1":
+		# TODO: Alert clients that the game wont be created due to
+		#       server reaching number of allowed instances.
+		return
+
+	# TODO: Set address dynamically; I.E. if game on different server than lobby.
+	#       As is, clients use the lobby address since games launch on new ports.
+	#       Will have to change how we watch game server death if on diff server.
+	#Globals.game_data.rpc_id(client1.id, "set_game_address", "51.222.85.126")
+	#Globals.game_data.rpc_id(client2.id, "set_game_address", "51.222.85.126")
+
+	Globals.game_data.rpc_id(client1.id, "set_game_port", port)
+	Globals.game_data.rpc_id(client2.id, "set_game_port", port)
+
+	rpc_id(client1.id, "connect_to_game")
+	rpc_id(client2.id, "connect_to_game")
+
+func match_list_add_entry(match_entry: Dictionary) -> void:
+	var client1 = client_pool.get( multiplayer.get_remote_sender_id() )
+	if not client1: return
+
+	if not client1.match_id.is_empty(): return
+	if match_entry.name.length() < 1 or match_entry.name.length() > 12: return
+	if not IS_VALID_CHARS_REGEX.search(match_entry.name): return
+	if not match_entry.type in MATCH_TYPES: return
+
+	match_entry["match_id"]                  = uuid.v4()
+	match_pool[match_entry.match_id]         = MATCH_POOL_ENTRY.duplicate_deep()
+	match_pool[match_entry.match_id].player1 = client1.id
+	match_pool[match_entry.match_id].data    = match_entry
+	client1.match_id                         = match_entry.match_id
+
+func match_list_remove_entry(match_id: String) -> void:
+	var client1 = client_pool.get( multiplayer.get_remote_sender_id() )
+	if not client1: return
+	if not client1.match_id == match_id: return
+
+	client1.match_id = ""
+
+	_delete_from_match_pool(match_id)
+
+func match_list_join_entry(match_id: String) -> void:
+	if active_match_pool.has(match_id):
+		push_error("Client Joining Match List Entry Failed. Already consumed. ", match_id)
+
+		# TODO: Need to signal to prospective client that match has been taken.
+		#       Server is in the midst of cleanup for it once clients disconnect
+		#       to join generated game server...
+		return
+
+	var match_entry     = match_pool.get(match_id)
+	if not match_entry: return
+
+	var client1         = client_pool.get( match_entry.player1 )
+	var client2         = client_pool.get( multiplayer.get_remote_sender_id() )
+
+	if not client1:     return
+	if not client2:     return
+
+	match_entry.player2 = client2.id
+
+	client1.in_match    = true
+	client1.partner_id  = client2.id
+
+	client2.match_id    = match_id
+	client2.in_match    = true
+	client2.partner_id  = client1.id
+
+	active_match_pool[match_id] = match_entry
+	# NOTE: Cleanup of match info and client info
+	#       will/should happen on their disconnect...
+
+	# TODO: Need to look into moving this out of here.
+	#       Maybe just have clients drop and internally call on their own?
+	#       Maybe just check here if we can even launch the game server?
+	_launch_game_server(match_entry, client1, client2)
+
+func server_client_connected(id: int) -> void:
+	push_warning("Client Connected... ID: ", id)
+
+	client_pool[id]    = CLIENT_DICT.duplicate_deep()
+	client_pool[id].id = id
+
+	var matches: Array = []
+	for match_entry in match_pool.values():
+		matches.append(match_entry.data)
+
+	MessageBus.emit_propagation_clients_only.rpc_id(
+		id, "receive_match_list", matches
+	)
+
+func server_client_disconnected(id: int) -> void:
+	push_warning("Client Disconnected... ID: ", id)
+
+	var client1     = client_pool.get(id)
+	if not client1:     return
+
+	var match_entry = _delete_from_match_pool(client1.match_id)
+	if not match_entry: return
+
+	push_warning("Removing Match... Match: ", match_entry)
+
+	MessageBus.emit_local(
+		"match_list_remove_entry", match_entry.match_id
+	)
+
+	MessageBus.emit_propagation_clients_only.rpc(
+		"match_list_remove_entry", match_entry.match_id
+	)
+
+	client_pool.erase(client1.id)
+
+
+# NOTE: Needed for hash check to pass between client and server but isn't used by server...
+@rpc("authority", "reliable")
+func connect_to_game() -> void:
+	pass
+
+@rpc("authority", "reliable")
+func go_back_to_match_screen() -> void:
+	pass