feat(levels): level catalogue with stable ids (slice 7)

LevelResource gains a stable Id and swaps the string ScenePath for an
editor-tracked PackedScene. The old path field was never read and had
rotted - forest_1 pointed at level_forest_5.tscn, which doesn't exist,
and borrowed LEVEL_5_NAME so it would have displayed "VILLAGE - 5".

LevelCatalogue lists levels in campaign order and produces the domain's
Campaign; an authoring mistake fails at boot because Campaign.Of rejects
blank and duplicate ids. Not a domain port - nothing in the domain
resolves a level to a scene.

All 8 scenes now have a resource; campaign keeps the existing 6
(tutorial_1, village_1..5). village_6 and forest_1 are catalogued but
deliberately out of the campaign.

GameManager.LevelScenes stays until slice 10 rewrites GameManager.

resources/levels/forest/forest_1.tres

@@ -1,9 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://dsq0y2iw7tfmk"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://dsq0y2iw7tfmk"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_8mmd7"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://cq4glvuewsno5" path="res://scenes/level_forest_1.tscn" id="2_scene"]
 
 [resource]
-script = ExtResource("1_8mmd7")
-LevelName = "LEVEL_5_NAME"
-ScenePath = "res://scenes/level_forest_5.tscn"
+script = ExtResource("1_script")
+Id = "forest_1"
+LevelName = "LEVEL_FOREST_1_NAME"
+Scene = ExtResource("2_scene")
 metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/level_catalogue.tres

@@ -0,0 +1,13 @@
+[gd_resource type="Resource" script_class="LevelCatalogue" load_steps=8 format=3]
+
+[ext_resource type="Script" path="res://scripts/Resources/LevelCatalogue.cs" id="1_script"]
+[ext_resource type="Resource" path="res://resources/levels/tutorial_1.tres" id="2_tutorial_1"]
+[ext_resource type="Resource" uid="uid://cqtalsov2bkpo" path="res://resources/levels/village/village_1.tres" id="3_village_1"]
+[ext_resource type="Resource" uid="uid://dlwkbjw1l33uq" path="res://resources/levels/village/village_2.tres" id="4_village_2"]
+[ext_resource type="Resource" uid="uid://b63u5qfp8p7pv" path="res://resources/levels/village/village_3.tres" id="5_village_3"]
+[ext_resource type="Resource" uid="uid://cxfei28yu3buh" path="res://resources/levels/village/village_4.tres" id="6_village_4"]
+[ext_resource type="Resource" uid="uid://qld841xv5ui0" path="res://resources/levels/village/village_5.tres" id="7_village_5"]
+
+[resource]
+script = ExtResource("1_script")
+Levels = Array[Resource]([ExtResource("2_tutorial_1"), ExtResource("3_village_1"), ExtResource("4_village_2"), ExtResource("5_village_3"), ExtResource("6_village_4"), ExtResource("7_village_5")])

resources/levels/tutorial_1.tres

@@ -0,0 +1,11 @@
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3]
+
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://dwr3avefuwnpy" path="res://scenes/level_tutorial_1.tscn" id="2_scene"]
+
+[resource]
+script = ExtResource("1_script")
+Id = "tutorial_1"
+LevelName = "LEVEL_TUTORIAL_1_NAME"
+Scene = ExtResource("2_scene")
+metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_1.tres

@@ -1,10 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://cqtalsov2bkpo"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://cqtalsov2bkpo"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_72j7f"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://bol7g83v2accs" path="res://scenes/level_village_1.tscn" id="2_scene"]
 
 [resource]
-resource_local_to_scene = true
-script = ExtResource("1_72j7f")
+script = ExtResource("1_script")
+Id = "village_1"
 LevelName = "LEVEL_1_NAME"
-ScenePath = "res://scenes/level_village_1.tscn"
+Scene = ExtResource("2_scene")
 metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_2.tres

@@ -1,9 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://dlwkbjw1l33uq"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://dlwkbjw1l33uq"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_msres"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://chqb11pfoqmeb" path="res://scenes/level_village_2.tscn" id="2_scene"]
 
 [resource]
-script = ExtResource("1_msres")
+script = ExtResource("1_script")
+Id = "village_2"
 LevelName = "LEVEL_2_NAME"
-ScenePath = "res://scenes/level_village_2.tscn"
+Scene = ExtResource("2_scene")
 metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_3.tres

@@ -1,9 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://b63u5qfp8p7pv"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://b63u5qfp8p7pv"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_6vcr8"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://h60obxmju6mo" path="res://scenes/level_village_3.tscn" id="2_scene"]
 
 [resource]
-script = ExtResource("1_6vcr8")
+script = ExtResource("1_script")
+Id = "village_3"
 LevelName = "LEVEL_3_NAME"
-ScenePath = "res://scenes/level_village_3.tscn"
+Scene = ExtResource("2_scene")
 metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_4.tres

@@ -1,9 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://cxfei28yu3buh"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://cxfei28yu3buh"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_h4twv"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://bhad760x3vvco" path="res://scenes/level_village_4.tscn" id="2_scene"]
 
 [resource]
-script = ExtResource("1_h4twv")
+script = ExtResource("1_script")
+Id = "village_4"
 LevelName = "LEVEL_4_NAME"
-ScenePath = "res://scenes/level_village_4.tscn"
+Scene = ExtResource("2_scene")
 metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_5.tres

@@ -1,8 +1,11 @@
-[gd_resource type="Resource" script_class="LevelResource" load_steps=2 format=3 uid="uid://qld841xv5ui0"]
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3 uid="uid://qld841xv5ui0"]
 
-[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_chped"]
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://bbwef3n2gjkt8" path="res://scenes/level_village_5.tscn" id="2_scene"]
 
 [resource]
-script = ExtResource("1_chped")
+script = ExtResource("1_script")
+Id = "village_5"
 LevelName = "LEVEL_5_NAME"
-ScenePath = "res://scenes/level_village_5.tscn"
+Scene = ExtResource("2_scene")
+metadata/_custom_type_script = "uid://cp68km8bykymb"

resources/levels/village/village_6.tres

@@ -0,0 +1,11 @@
+[gd_resource type="Resource" script_class="LevelResource" load_steps=3 format=3]
+
+[ext_resource type="Script" uid="uid://c2h0pqhxiqswe" path="res://scripts/Resources/LevelResource.cs" id="1_script"]
+[ext_resource type="PackedScene" uid="uid://dqekccjkwev4y" path="res://scenes/level_village_6.tscn" id="2_scene"]
+
+[resource]
+script = ExtResource("1_script")
+Id = "village_6"
+LevelName = "LEVEL_6_NAME"
+Scene = ExtResource("2_scene")
+metadata/_custom_type_script = "uid://cp68km8bykymb"