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/mcp/src/resources/resources.test.ts

@@ -201,21 +201,32 @@ describe('pascal://catalog/items', () => {
   })
 })
 
-describe('pascal://agent/guide', () => {
+describe('pascal://agent-guide', () => {
   beforeEach(() => resetScene())
 
-  test('returns MCP-first construction guidance', async () => {
+  test('returns MCP-first project guidance', async () => {
     const pair = await spinUp(registerAgentGuide)
     try {
-      const res = await pair.client.readResource({ uri: 'pascal://agent/guide' })
+      const res = await pair.client.readResource({ uri: 'pascal://agent-guide' })
       const content = res.contents[0] as { uri: string; mimeType?: string; text?: string }
       expect(content.mimeType).toBe('text/markdown')
       const text = content.text ?? ''
-      expect(text).toContain('create_story_shell')
-      expect(text).toContain('create_stair_between_levels')
-      expect(text).toContain('dedicated roof level')
-      expect(text).toContain('Do not make first-story walls taller')
-      expect(text).toContain('Run `validate_scene` and `verify_scene`')
+      expect(text).toContain('create_project')
+      expect(text).toContain('save_scene')
+      expect(text).toContain('get_project_status')
+      expect(text).toContain('editorUrl')
+      expect(text).toContain('0 to 1 along the wall')
+    } finally {
+      await pair.close()
+    }
+  })
+
+  test('keeps the legacy agent guide URI as an alias', async () => {
+    const pair = await spinUp(registerAgentGuide)
+    try {
+      const res = await pair.client.readResource({ uri: 'pascal://agent/guide' })
+      const text = (res.contents[0] as { text?: string }).text ?? ''
+      expect(text).toContain('Pascal MCP Agent Guide')
     } finally {
       await pair.close()
     }