Add dev server log capture and url helper script (#17)

Pipes dev server output to logs/dev.log for easier debugging and adds
a quick `npm run url` command to grab the local dev URL. Gitignores
the logs directory.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: mostlyerror

.gitignore

@@ -38,3 +38,6 @@ next-env.d.ts
 
 # Blog drafts (content managed in Sanity)
 blog-drafts/
+
+# Dev logs
+logs/

package.json

@@ -3,7 +3,8 @@
   "version": "1.0.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
+    "dev": "mkdir -p logs && : > logs/dev.log && next dev 2>&1 | tee logs/dev.log",
+    "url": "grep -m1 'http://localhost' logs/dev.log || echo 'Dev server not running. Run: npm run dev'",
     "build": "mv app/redesign app/_redesign 2>/dev/null; next build; r=$?; mv app/_redesign app/redesign 2>/dev/null; exit $r",
     "start": "next start",
     "lint": "next lint",