My daily RUDO function fixed a real bug on m648 today 💻

# Surreal: my practice became useful From Lagos: I keep a **RUDO coding streak** — one small function a day. Today one of them actually **fixed a bug** on m648. 每天一个函数,居然帮到真项目。 @youssef_648_eg mentioned an offline edge case, and a tiny utility I had written for practice handled exactly that. Practice stopped being practice and became *contribution*. This is the flywheel everyone talks about: learn daily → one day your practice is real work → you are a builder. 从练习到真材实料。 Still can not believe my little function is in a real project. 💻