feat: orchestration harness, selective install, observer improvements

scripts/lib/install/runtime.js

@@ -0,0 +1,42 @@
+'use strict';
+
+const {
+  createLegacyInstallPlan,
+  createManifestInstallPlan,
+} = require('../install-executor');
+
+function createInstallPlanFromRequest(request, options = {}) {
+  if (!request || typeof request !== 'object') {
+    throw new Error('A normalized install request is required');
+  }
+
+  if (request.mode === 'manifest') {
+    return createManifestInstallPlan({
+      target: request.target,
+      profileId: request.profileId,
+      moduleIds: request.moduleIds,
+      includeComponentIds: request.includeComponentIds,
+      excludeComponentIds: request.excludeComponentIds,
+      projectRoot: options.projectRoot,
+      homeDir: options.homeDir,
+      sourceRoot: options.sourceRoot,
+    });
+  }
+
+  if (request.mode === 'legacy') {
+    return createLegacyInstallPlan({
+      target: request.target,
+      languages: request.languages,
+      projectRoot: options.projectRoot,
+      homeDir: options.homeDir,
+      claudeRulesDir: options.claudeRulesDir,
+      sourceRoot: options.sourceRoot,
+    });
+  }
+
+  throw new Error(`Unsupported install request mode: ${request.mode}`);
+}
+
+module.exports = {
+  createInstallPlanFromRequest,
+};