Fix printResponseTime display in TalkerScreen showing incorrect/increasing values

[Copilot]

Thanks a lot for contributing!

Response time displayed in TalkerScreen kept increasing on each view because _getResponseTime() was called in generateTextMessage(), recalculating elapsed time from DateTime.now() on every render.

Changes:

• Calculate responseTime once in constructor initializer list for DioResponseLog and DioErrorLog
• Store as final int? responseTime field
• Use stored value in generateTextMessage() instead of recalculating

Tests added:

• Verify response time remains consistent across multiple generateTextMessage() calls for both response and error logs

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl-ssl.google.com
  • Triggering command: /usr/bin/wget wget -qO- REDACTED (dns block)
  • Triggering command: /usr/bin/curl curl -fsSL REDACTED (dns block)
• esm.ubuntu.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https (dns block)
• https://storage.googleapis.com/flutter_infra_release/releases/stable/linux/flutter_linux_3.22.3-stable.tar.xz
  • Triggering command: /usr/bin/curl curl -o /tmp/flutter_install.sh REDACTED (http block)
  • Triggering command: /usr/bin/wget wget -qO- REDACTED (http block)
  • Triggering command: /usr/bin/wget wget -q REDACTED (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>The output of printResponseTime for dio in TalkerScreen is displayed incorrectly</issue_title>
<issue_description>In the latest version, dio has a printResponseTime that can be configured. When I set it to true, its output in the console is accurate. However, when I check the result "Time" in TalkerScreen, it keeps changing and is inconsistent with the console output. Each time TalkerScreen is opened and the same history record is seen, this time is increasing</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes The output of printResponseTime for dio in TalkerScreen is displayed incorrectly #407

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