fix(cli): ignore the CLI test scratch fixture root (#2524)

* fix(cli): ignore the CLI test scratch fixture root

tests/cli/helpers.ts copies fixtures into tests/cli/.tmp and removeDir is
best-effort, so a failed or interrupted dev test leaves copies behind. The
path was in neither .gitignore nor .prettierignore, so the leftovers showed
up as untracked files and broke pnpm format:check on generated sources until
the directory was deleted by hand.

Ignore it in both tools, matching dist/, .turbo, .next/, .mcp-use and
deno-test-temp.

* fix(cli): ignore test scratch directories in ESLint

---------

Co-authored-by: Aishwary Dongre <aishwary.dongre@neuralarc.ai>
Co-authored-by: Andrew Khadder <andrew@manufact.com>

libraries/typescript/.gitignore

@@ -72,3 +72,6 @@ test_app
 # Deno test artifacts
 deno-test-temp
 *.tgz
+
+# Scratch fixture copies made by the CLI tests
+.tmp

libraries/typescript/.prettierignore

@@ -13,6 +13,7 @@
 **/.tsup/**
 **/.vite/**
 **/.mcp-use/**
+**/.tmp/**
 **/playwright-report/**
 **/src/skills/vendor/*.min.js
 

libraries/typescript/eslint.config.js

@@ -10,6 +10,7 @@ export default [
   {
     ignores: [
       "**/.mcp-use/**",
+      "**/.tmp/**",
       "**/node_modules/**",
       "**/dist/**",
       "**/build/**",