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Render CLI --text flag treats alternations as literals, not regex

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Render CLI render logs --text treats the pattern as a literal substring, not a regex — alternation like --text "signal\|exiting\|SIGKILL" silently returns zero rows even when the window contains matching lines (Handling signal, Worker exiting). No error or warning is emitted; during incident triage the empty result reads as 'nothing happened in this window' and can misdirect the diagnosis (it made a gunicorn hard-kill window look event-free). Observed with Render CLI v2.x while triaging OOM restarts.

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--text is a literal substring match; signal\|exiting searches for the literal backslash-pipe string. There is no regex flag. Workarounds:

  1. One term per call, sequentially (parallel render logs calls also stall):

    render logs -r srv-XXX --text "Handling signal" --start T1 --end T2 -o text --confirm
    render logs -r srv-XXX --text "Booting worker" --start T1 --end T2 -o text --confirm
    
  2. Or pull the window unfiltered and filter client-side:

    render logs -r srv-XXX --start T1 --end T2 --limit 300 -o json --confirm | jq -r '.[].message' | grep -E 'signal|exiting'

Rule of thumb: an empty --text result from a multi-term/escaped pattern is a query bug until proven otherwise — re-run with a single bare word before concluding the window is quiet.

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