God mode: in-world editing surface (#6496, #6576)

• Rebuilt god mode as a direct-manipulation editor — anatomy-grown handles/gizmos (translate/rotate/scale/extrude), hover affordances, and a bottom toolbar (paths/shapes/brushes + blueprint-category tabs). All authoring flows through replicated, deterministic Tome authoring input (server-authoritative, multiplayer co-edit), not the old client-only selection-inspector transport.
• Placement: primitives, blueprints (full subtree clones), and prefabs via cursor-follow + click-to-commit, right-click cancel. Splines: freehand draw, extend-from-endpoint, snap-close, shape recognition, conform-to-terrain. Attach/detach, subtree-aware duplicate, parent-aware transforms, R-to-rotate.
• BREAKING: god-mode authoring UI moved to creatorTabs (CreatorTabDef[] on GameSpec, compiled to CompiledSpec.creatorTabs); setCreatorTab(id, tab|null) adds/replaces/removes one tab. The old creatorUi and mode:"god" modUis are no longer compiled or rendered into the rail (hard-cut; creatorUi remains in the type as @deprecated). One module per tab — default export = render, named onMount/onDestroy for lifecycle. Rail moved from a bottom-center pill to a top-right tab rail (buildCreatorTabRailHtml).
• Added god-mode undo/redo: top-left controls + replicated god:undo/god:redo actions (Ctrl+Z / Ctrl+Y) on the player-keyed UndoStacksResource (the same stack api.undo() drives). Property edits only; structural spawn/delete is a follow-up.
• Fields primitive: named authored+runtime spatial rasters (terrain:height, terrain:material:<id>, scatter:<bedId>, plus gameplay fields), component-backed inside the rollback envelope; every field op is O(update) via per-chunk versioning. New readField/writeField ObjectAPI; writeField inside withPersistence authors (→ place.fields), otherwise writes the runtime layer.
• Runtime terrain editing: terrain mesh + collider read the composed (authored+runtime) field, so a gameplay/behavior writeField("terrain:height"|"terrain:material:<id>") sculpts live (only authored edits persist). Static { terrain: offset } objects re-anchor when the composed ground moves (terrainReanchorSystem, version-gated); physics bodies settle on the composed collider.
• Brushes + scatter: godMode.brushes registry (defineBrush/updateBrush/getBrush) + paint-only scripts (export function paint(p, inset, current, ctx)). Ships terrain/material/daisies built-ins (materials derive from the terrain palette). Scatter = real entities (≤500 cap), edited via one generic scatter editor (Amount/Pattern/Size/Sway/Steep/Grow/Shrink); TomeOwnedField auto-prunes a bed's field on destroy. Added getObjectWithDescendants (deep-clone subtree).

Renderer → adapter rewrite (#6517)

• Replaced the 13 hand-rolled state/* translator classes with op-driven per-kind handlers that write Three.js directly off the ECS delta stream (no RenderPrep/RenderReadView/DrawableSource intermediate; per-handler typed userData). Renderer dropped from ~66k to ~20k LOC. TransformSmoother emits synthetic transform/world-* ops into the same per-op write path. No spec/script migration required — games render the same.
• Node-material resolver: DrawMaterial.key maps to lit material families (standard/PBR, Phong, Lambert, Toon, Matcap, unlit) plus water/slash/shockwave/voxel paths, with consistent override application. isEmissiveMaterial (flash + glow) broadened from MeshStandard-only to any material with emissive/emissiveIntensity.
• Per-entity draw/shadow component (castShadow/receiveShadow, default on), authored via ObjectProperties.castShadow/receiveShadow; honored across standalone, indirect-batch (in the batch lane key), and oversized primitive lanes. Effect/water materials keep __noShadow as cast default.
• Animation: mixer now substring-matches a missing clip name ("walk" → "Walking") and falls back to the first viable clip instead of rendering T-pose; restored mask bones (per-bone clip filtering for upper-body-only overlays) and LOD migration (camera-driven reconcile, thresholds 25/50/100, LOD3 resident to 200m).
• Bounded texture VRAM via handler retain/release at every bind site + re-enabled eviction; batched MSDF world-text glyphs; GPU scatter for terrain decorations; place-transition stream reset (keeps same-frame recreated entity objects alive).
• Fixed archway primitive geometry (doorway opening reaches the floor) and a regression that broke kind: "custom" cameras.

God-mode polish + sculpting feel (#6587, #6588, #6585)

• Particle emitters get their own editor cluster (move pad, vertical lift, one shape-aware size grip that grows the emission shape, rate chip, verbs — no yaw/scale grips); selected emitters draw their emission volume as a translucent shell. Smoke placeable emits from a box volume.
• Toolbar pipeline unified: default + spec prefabs group by category into tabs; "Shapes"/"Paths"/"Brushes"/"Effects" are joinable category names, so creator/Savi blueprints land inside the built-in shelves.
• Hover affordances stay quiet while a selection is active; co-located handle fan-out uses a screen-space threshold so nearly-identical anchors separate consistently; a controls cheat sheet sits under the top-left undo/redo cluster.
• Brush sculpting feel: dabs land on the first ray–terrain crossing (the cliff face under the pointer), the cursor projects against the sculpted surface frozen at stroke start, built-in Raise/Lower compensate for slope, and the brush ring drapes over the terrain.
• Savi: the god-mode briefing fires only when a game has no creator tabs and steers her toward a per-place "Places" tab, blueprints/brushes in a zoo place, and withPersistence for panel edits; heightmap-terrain skill triggers incidental terrain and tames domain-warp spikes.

The god-mode authoring UI is now a tab rail in the top-right, defined by a new creatorTabs array on the spec. It replaces creatorUi and the god-mode half of modUis. Each tab is ONE script module: its default export is render(localPlayer, world) => htmlString, and it may add named exports onMount(container, localPlayer, world) / onDestroy(container) for mount-managed panels.

Migrate every affected game:

1. If the spec has creatorUi: { render: "scripts/creator-ui.js" }, replace it with a tab and delete creatorUi:

   creatorTabs: [
     { id: "creator", title: "Creator", icon: "🛠️", script: "scripts/creator-ui.js" }
   ]
   

2. For each modUis entry whose mode is "god" — e.g. "slash-fx#editor": { label: "Slash FX", icon: "🧩", shortcut: "F", ui: { render: "scripts/panel.js" } } — add a creatorTabs entry and remove that entry from modUis:

   { id: "slash-fx#editor", title: "Slash FX", icon: "🧩", shortcut: "F", script: "scripts/panel.js" }
   

   The tab's script is the old ui.render module — its default export is still the renderer, and any onMount/onDestroy named exports keep working. No script edits are needed.
3. Leave modUis entries with mode: "game" untouched — those are gameplay panels, not god-mode, and are unaffected.
4. creatorTabs is ordered: the first tab is selected by default. Put the primary authoring panel first.
5. Strip self-positioning from each migrated panel script. The engine now mounts the panel in a container directly under the tab row, so the panel's render must return plain content. Remove any fixed/absolute wrapper and any top padding/margin that the old panel used to clear the topbar (e.g. class="fixed right-4 top-20 …" → just the inner <div>). Leaving it in double-offsets the panel.

If a game had no creatorUi and no mode: "god" modUis, it needs no changes — god mode still has its built-in authoring (handles, toolbar, undo/redo).