fix: prevent Actor log-streaming thread from crashing on stream timeout

[vdusek]

Summary

After a successful ActorClient.call(), the background log-streaming thread could crash with an uncaught impit.TimeoutException, printing a traceback even though the run finished fine.

Issue

Closes: #945

Root cause

The log stream was requested with a bounded 30s timeout. impit applies timeout to the whole request, including the streamed body, so any run streaming logs longer than that tripped impit.TimeoutException mid-stream — unhandled in the sync thread, and a spurious ERROR + traceback in the async twin. Raising the value wouldn't help: every tier is capped at DEFAULT_TIMEOUT_MAX (360s).

Fix

• Request the stream with no_timeout (impit's ~24h ceiling), so it runs until the server closes it with EOF at run finish. Matches the JS client.
• Catch impit.TimeoutException in both paths and log a WARNING instead of crashing / error-logging; other failures still error-log.
• Run the sync streaming thread as a daemon so a stalled read can't block interpreter shutdown.

Known limitation

A parked sync iter_bytes() read can't be interrupted from another thread, so with no_timeout a manual StreamedLog.stop() on a momentarily silent stream waits for the next chunk or EOF rather than the old 30s bound. The ActorClient.call() path is unaffected (run finish sends EOF). Matches the JS client.

[codecov]

Codecov Report

❌ Patch coverage is 82.60870% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.54%. Comparing base (68c0e24) to head (e45d675).
⚠️ Report is 12 commits behind head on master.

Files with missing lines	Patch %	Lines
src/apify_client/_streamed_log.py	82.60%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #944      +/-   ##
==========================================
- Coverage   94.56%   94.54%   -0.03%     
==========================================
  Files          48       48              
  Lines        5119     5129      +10     
==========================================
+ Hits         4841     4849       +8     
- Misses        278      280       +2     

Flag	Coverage Δ
integration	92.86% <65.21%> (-0.17%)	⬇️
unit	83.42% <82.60%> (-0.01%)	⬇️

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