fix: handle empty strings after event removal in transcription processing (...

TnR2

2025-10-01 528f92f7a2a26cade1c57ccf26b0ba6524e7cae5

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一    1
幺    1
二    2
两    2
三    3
四    4
五    5
六    6
七    7
八    8
九    9