feat: add daily learning summary script with cron task

- Create scripts/daily_learning.sh for daily chat review
- Set up cron task at 3 AM daily
- Log file: logs/daily_learning.log
- Learning records: memory/daily_learning.md

audio-1774809886092.vtt

@@ -0,0 +1,17 @@
+WEBVTT
+
+00:00.000 --> 00:08.000
+我发你语音的时候,你会转成文字,然后进行处理
+
+00:08.000 --> 00:12.000
+正常情况,我发语音,你用文字回复
+
+00:12.000 --> 00:17.000
+特殊的时候,我会标出,让你用语音回复,你就用语音回复
+
+00:17.000 --> 00:19.000
+正常还是用文字回复我
+
+00:19.000 --> 00:22.000
+你把这个记录到你的内存里面
+