webdef test site

• /item/N — dynamic page (~20 ms)
• /search?q= — heavy (150–400 ms)
• /api/… — JSON
• /login — POST user=test&pass=test, otherwise 401
• /slow?ms=N — N ms delay
• /status/CODE — any status
• /admin — 403, /nope — 404, /redirect — 301
• /big.bin — 5 MB