Reset core/viewer/editor/mcp packages and apps/editor from private-editor

Wholesale swap of packages/{core,viewer,editor,mcp} and apps/editor with the
versions from the private editor repo, which is the production source of truth.

Setup changes:
- packages/{core,viewer,editor} versions held at 0.7.0 baseline (matching
  the most recent published release) so a bump=minor publishes 0.8.0
- packages/mcp held at 0.1.1 (never published; first publish will go through
  the new release.yml flow)
- peerDependencies and devDependencies for inter-package @pascal-app/*
  references pinned to ^0.7.0 instead of '*' / 'workspace:*' so they are
  valid for npm consumers
- Root package.json: TypeScript bumped to 6.0.2, added overrides for
  @types/react, @types/react-dom, @types/three to prevent JSX namespace
  fragmentation across the workspace
- release.yml extended to also publish editor and mcp; 'both' option renamed
  to 'all'; added a sync step that updates inter-package peerDeps/devDeps to
  match the new versions on every bump (so viewer/editor/mcp tarballs always
  reference the version of core they were built against)
- Root scripts gained release:editor and release:mcp shortcuts

Verification:
- bun install --frozen-lockfile is consistent
- packages/{core,viewer,mcp} build cleanly, dist/index.d.ts emitted
- packages/editor check-types reports 21 pre-existing errors, identical to
  what private-editor currently reports

Open PRs against editor-v2 will need rebasing/conflict resolution.

packages/viewer/src/systems/wall/wall-system.tsx

@@ -37,6 +37,10 @@ function computeGeometryBoundsTree(geometry: THREE.BufferGeometry) {
   ;(geometry as any).computeBoundsTree({ maxLeafSize: 10 })
 }
 
+function csgGeometry(brush: Brush): THREE.BufferGeometry {
+  return brush.geometry as unknown as THREE.BufferGeometry
+}
+
 type WallBoundaryEdgeTag = 'front' | 'back' | 'base'
 
 type TaggedWallBoundaryEdge = {
@@ -57,7 +61,7 @@ function insetCurvedWallBoundaryPointsFor3D(
   boundaryPoints: ReturnType<typeof getWallMiterBoundaryPoints>,
   miterData: WallMiterData,
 ) {
-  if (!boundaryPoints || !isCurvedWall(wall)) {
+  if (!(boundaryPoints && isCurvedWall(wall))) {
     return boundaryPoints
   }
 
@@ -431,7 +435,7 @@ export function generateExtrudedWall(
   childrenNodes: AnyNode[],
   miterData: WallMiterData,
   slabElevation = 0,
-) {
+): THREE.BufferGeometry {
   const wallStart: Point2D = { x: wallNode.start[0], y: wallNode.start[1] }
   const wallEnd: Point2D = { x: wallNode.end[0], y: wallNode.end[1] }
   // Positive slab: shift the whole wall up (full height preserved)
@@ -519,18 +523,18 @@ export function generateExtrudedWall(
     cutoutBrush.updateMatrixWorld()
     const newResult = csgEvaluator.evaluate(resultBrush, cutoutBrush, SUBTRACTION)
     if (resultBrush !== wallBrush) {
-      resultBrush.geometry.dispose()
+      csgGeometry(resultBrush).dispose()
     }
     resultBrush = newResult
   }
 
   // Clean up
-  wallBrush.geometry.dispose()
+  csgGeometry(wallBrush).dispose()
   for (const brush of cutoutBrushes) {
-    brush.geometry.dispose()
+    csgGeometry(brush).dispose()
   }
 
-  const resultGeometry = resultBrush.geometry
+  const resultGeometry = csgGeometry(resultBrush)
   resultGeometry.computeVertexNormals()
   assignWallMaterialGroups(resultGeometry, wallNode, boundaryEdges)
   ensureUv2Attribute(resultGeometry)