0000000000000000000000000000000000000000 472e95b9e42542d1d0053f689ca33a3817519637 Chang Shu-Huai <junsuwhy@gmail.com> 1768964271 +0000	branch: Created from HEAD
472e95b9e42542d1d0053f689ca33a3817519637 d1162e99690d2d18f413b013ded66b20093101a2 Chang Shu-Huai <junsuwhy@gmail.com> 1768964471 +0000	commit: feat(contact): implement contact form submission with validation and email notification