fix: ignore fs-specific tmp files in watch mode

[PeachScript]

修复在某些特殊文件系统（比如 CloudIDE）中会 watch 到临时文件，然后尝试读取导致报错的问题，错误类似：

error - ENOENT: no such file or directory, open '/path/to/index.tsx.450062575'

解法是使用 awaitWriteFinish 等文件稳定了再触发事件，目前检测时间间隔设置得很小，所以对 watch 性能的影响应该较小

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b4bd2bb) 94.43% compared to head (645fc9e) 94.43%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #729   +/-   ##
=======================================
  Coverage   94.43%   94.43%           
=======================================
  Files          55       55           
  Lines        1562     1562           
  Branches      373      351   -22     
=======================================
  Hits         1475     1475           
- Misses         82       87    +5     
+ Partials        5        0    -5     

Files	Coverage Δ
src/builder/bundless/index.ts	91.66% <100.00%> (ø)

... and 2 files with indirect coverage changes

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