refactor(docs): [SITE-02] generate and validate standalone editor types

scripts/editor-declarations/syntax.ts

@@ -0,0 +1,18 @@
+import assert from 'node:assert/strict'
+import ts from 'typescript'
+
+export function parseDeclaration(code: string, file = 'plugin.d.ts'): ts.SourceFile {
+  const source = ts.createSourceFile(file, code, ts.ScriptTarget.Latest, true, ts.ScriptKind.TS)
+  const options: ts.CompilerOptions = { noLib: true, noResolve: true, types: [] }
+  const host = ts.createCompilerHost(options)
+  host.getSourceFile = name => name === file ? source : undefined
+  const program = ts.createProgram([file], options, host)
+  assert.equal(program.getSyntacticDiagnostics(source).length, 0, 'Invalid plugin declaration syntax')
+  return source
+}
+
+export function exportedDefinition(node: ts.Statement): ts.Statement {
+  assert(ts.isInterfaceDeclaration(node) || ts.isTypeAliasDeclaration(node) || ts.isClassDeclaration(node)
+    || ts.isModuleDeclaration(node) || ts.isEnumDeclaration(node), 'Unsupported SDK declaration kind')
+  return ts.factory.replaceModifiers(node, [ts.factory.createModifier(ts.SyntaxKind.ExportKeyword)])
+}