fix(deploy): make --create-site flag always work without interaction (#7570)

* fix(deploy): make --create-site flag always work without interaction

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* fix(deploy): fix "Create & configure" option in interactive mode

The interactive deploy prompt was incorrectly checking for a '+' prefix
that didn't exist in the choice text, causing "Create & configure a new
project" to always fall through to the link flow instead of creating
a new site. Fixed by using proper constants and exact equality check,
consistent with the init command pattern.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* fix(deploy): remove non-null assertion and improve error handling

Replace non-null assertion operator with proper error handling to fix
ESLint violation. Also apply Prettier formatting fixes.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* refactor(deploy): use inquirer choice objects for robust option handling

Replace brittle string matching with inquirer's choice objects pattern,
separating display text from programmatic values. This prevents future
breakage when display text changes and follows established codebase patterns.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

* fix(deploy): add proper error handling for --create-site name conflicts

Handle 422 status code when site name is already taken, providing clear
error messages instead of generic "JSONHTTPError: Unprocessable Entity".
This improves the user experience for non-interactive site creation.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

---------

Co-authored-by: Claude <[email protected]>

Author: biilmann

src/commands/deploy/deploy.ts

@@ -926,15 +926,34 @@ const createSiteWithFlags = async (options: DeployOptionValues, command: BaseCom
     log(message)
   }
 
-  const siteData = await sitesCreate(
-    {
-      name: siteName,
+  // Create site directly via API to bypass interactive prompts
+  const { api } = command.netlify
+  const body: { name?: string } = {}
+  if (siteName) {
+    body.name = siteName.trim()
+  }
+
+  if (!options.team) {
+    throw new Error('Team must be specified to create a site')
+  }
+
+  try {
+    const siteData = await api.createSiteInTeam({
       accountSlug: options.team,
-    },
-    command,
-  )
-  site.id = siteData.id
-  return siteData
+      body,
+    })
+    site.id = siteData.id
+    return siteData as SiteInfo
+  } catch (error_) {
+    if ((error_ as APIError).status === 422) {
+      return logAndThrowError(
+        siteName
+          ? `Site name "${siteName}" is already taken. Please try a different name.`
+          : 'Unable to create site with a random name. Please try again or specify a different name.',
+      )
+    }
+    return logAndThrowError(`Failed to create site: ${(error_ as APIError).status}: ${(error_ as APIError).message}`)
+  }
 }
 
 const promptForSiteAction = async (options: DeployOptionValues, command: BaseCommand, site: $TSFixMe) => {
@@ -954,11 +973,20 @@ const promptForSiteAction = async (options: DeployOptionValues, command: BaseCom
       type: 'list',
       name: 'initChoice',
       message: 'What would you like to do?',
-      choices: ['Link this directory to an existing project', 'Create & configure a new project'],
+      choices: [
+        {
+          name: '⇄  Link this directory to an existing project',
+          value: 'link',
+        },
+        {
+          name: '+  Create & configure a new project',
+          value: 'create',
+        },
+      ],
     },
   ])
 
-  const siteData = initChoice.startsWith('+') ? await sitesCreate({}, command) : await link({}, command)
+  const siteData = initChoice === 'create' ? await sitesCreate({}, command) : await link({}, command)
 
   site.id = siteData.id
   return siteData