claude: Initialize engines for quarto create project command

The "quarto create project" command (without dashes) calls projectCreate()
which looks up the execution engine, but engines weren't registered before
this call. This caused "Invalid execution engine: markdown" errors.

Solution:
- Added initializeProjectContextAndEngines() at start of action handler
- Ensures markdown engine (and all standard engines) are registered
- Handles both interactive and JSON modes

This is simpler than create-project fix because this command always uses
the markdown engine (hardcoded), doesn't accept --engine parameter, and
doesn't need external engine support.

Fixes: quarto create project [type] [directory]

Author: gordonwoodhull

src/command/create/cmd.ts

@@ -13,6 +13,7 @@ import {
   isPositWorkbench,
 } from "../../core/platform.ts";
 import { runningInCI } from "../../core/ci-info.ts";
+import { initializeProjectContextAndEngines } from "../command-utils.ts";
 
 import { Command } from "cliffy/command/mod.ts";
 import { prompt, Select, SelectValueOptions } from "cliffy/prompt/mod.ts";
@@ -52,6 +53,9 @@ export const createCommand = new Command()
       type?: string,
       ...commands: string[]
     ) => {
+      // Initialize engines before any artifact creation
+      await initializeProjectContextAndEngines();
+
       if (options.json) {
         await createFromStdin();
       } else {

tests/docs/project/plain/.gitignore

@@ -1,2 +1,4 @@
 /.quarto/
 *_cache/
+
+**/*.quarto_ipynb

tests/docs/project/site/.gitignore

@@ -1,2 +1,4 @@
 /.quarto/
 *_cache/
+
+**/*.quarto_ipynb

tests/docs/websites/search/merge-navbar-crumbs-configuration/.gitignore

@@ -1 +1,3 @@
 /.quarto/
+
+**/*.quarto_ipynb