tzuchen

From 1111111111111111111111111111111111111111 Mon Sep 17 00:00:00 2001
From: ChatGPT Bot <bot@example.com>
Date: Wed, 8 Oct 2025 03:30:00 +0800
Subject: [PATCH] Bootstrap CI smoke test and mobile.css scaffold

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 .gitignore             | 24 ++++++++++++++++++++++++
 README-dev.md          | 33 +++++++++++++++++++++++++++++++++
 static/mobile.css      | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/test_smoke.py    | 35 ++++++++++++++++++++++++++++++++