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

TnR2

2025-10-01 528f92f7a2a26cade1c57ccf26b0ba6524e7cae5

1
2
3
4
5
6
7
8
9
百一    101
百二    102
百三    103
百四    104
百五    105
百六    106
百七    107
百八    108
百九    109