Jigsaw junctions and studio tools

- Rotatable jigsaw candidates try their rotations in random order
- Candidate connectors are tried by priority within each rotation
- Planar candidates must agree with every occupied neighbor socket
- Planar assembly falls back to source-only matching before it fails
- Connectors whose branch placed nothing stay open
- Spatial default kit covers all 24 Y-rotation topologies
- Planar start pool includes Blank at weight 1
- Vanilla spatial projects omit Iris themes and placement caps
- Vanilla spatial projects use max depth 4
- 1.21.1 export derives the vertical distance from the structure
- Workcell floors map the active variant's connectors
- Floor froglights mark up, down and up-down connectors
- Connector Tool places, moves, re-orients and removes spatial connectors
- Connector Tool re-seats planar face-center sockets
- Main menu pages workcells five at a time
- Spatial variants can be deleted while another variant remains
- Tool sticks act on the variant they were made for
- Destructive tool confirmation needs two separate clicks
- Pistons cannot extend into protected cells
- Autosave capture failures back off and notify the owner
- Autosave plays the save bell
- Hidden-connector air final states are stored as air
- Reset Connector Blocks clears unsaved markers
- Folia logout releases reset and resize reservations
- Spatial workcell rename relabels its variant
- Workcell teleports land inside the focused workcell
- Replacement layouts keep rendering and hydration working
- Container preview probes stay out of chat
- Non-owners can run commands that are not recognized as mutating
- Spatial resize or rotation past the workcell volume limit is refused
- Tests cover default kit assembly, connector placement, floor glyphs and menu paging

adapters/bukkit/plugin/src/main/java/art/arcane/iris/command/CommandJigsaw.java

@@ -23,6 +23,7 @@ import art.arcane.iris.structure.authoring.StructureKey;
 import art.arcane.iris.structure.authoring.StructureWriteResult;
 import art.arcane.iris.structure.export.VanillaJigsawExportFormat;
 import art.arcane.iris.structure.export.VanillaJigsawExportRequest;
+import art.arcane.iris.structure.export.VanillaJigsawExportSettings;
 import art.arcane.iris.structure.export.VanillaJigsawExportSource;
 import art.arcane.iris.structure.graph.PlanarJigsawWorkcellResolver;
 import art.arcane.iris.generation.terrain.IrisDimension;
@@ -437,13 +438,14 @@ public class CommandJigsaw implements DirectorExecutor {
         }
         VanillaJigsawExportRequest request;
         try {
-            request = VanillaJigsawExportRequest.builder(
-                            VanillaJigsawExportSource.forData(
-                                    context.request().source(), context.request().structureKey()), destination)
+            VanillaJigsawExportSource source = VanillaJigsawExportSource.forData(
+                    context.request().source(), context.request().structureKey());
+            request = VanillaJigsawExportRequest.builder(source, destination)
                     .namespace(namespace)
                     .resourcePath(context.request().structureKey())
                     .format(exportFormat)
                     .replaceExisting(replace)
+                    .settings(VanillaJigsawExportSettings.runtimeDefaults(source.loadStructure()))
                     .build();
         } catch (IllegalArgumentException exception) {
             sendError(exception.getMessage());