fix: output build artifacts to project cwd instead of package dir

Nitro's vercel preset resolves output from rootDir which defaults to
Vite's root (packageRoot). Override output.dir and publicDir via
nitro config to resolve from projectRoot (cwd).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: rsbh

packages/chronicle/src/server/vite-config.ts

@@ -8,6 +8,11 @@ import remarkDirective from 'remark-directive';
 import { type InlineConfig } from 'vite';
 import remarkUnusedDirectives from '../lib/remark-unused-directives';
 
+function resolveOutputDir(projectRoot: string, preset?: string): string {
+  if (preset === 'vercel' || preset === 'vercel-static') return path.resolve(projectRoot, '.vercel/output');
+  return path.resolve(projectRoot, '.output');
+}
+
 export interface ViteConfigOptions {
   packageRoot: string;
   projectRoot: string;
@@ -96,6 +101,11 @@ export async function createViteConfig(
           }
         }
       }
-    }
+    },
+    nitro: {
+      output: {
+        dir: resolveOutputDir(projectRoot, preset),
+      },
+    },
   };
 }