Delete row 298 from branch

id 298
repo_id 69
name 20260915
commit_id e013fb67f034a93b7457ab2936adb3179151542d
commit_message docs: 更新 README，明确演示版与 chanpin 同步说明
pusher_id 17
is_deleted 0
deleted_by_id 0
deleted_unix 0
commit_time 1789041117
created_unix 1789040337
updated_unix 1789041120
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