domain: refine the runaway code and fix typos

[JmPotato]

What problem does this PR solve?

Issue Number: ref #54434.

What changed and how does it work?

Fix some typos and refine the runaway-related code.

Check List

Tests

• Unit test
• Integration test

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[JmPotato]

/cc @lance6716 @nolouch @HuSharp

PTAL, thx.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, nolouch

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Needs approval from an approver in each of these files:

• OWNERS [lance6716]
• pkg/domain/OWNERS [lance6716]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-07-04 06:56:18.838526772 +0000 UTC m=+1480305.324015603: ☑️ agreed by lance6716.
• 2024-07-04 07:02:48.709076055 +0000 UTC m=+1480695.194564888: ☑️ agreed by nolouch.

[codecov]

Codecov Report

Attention: Patch coverage is 89.47368% with 2 lines in your changes missing coverage. Please review.

Project coverage is 55.8517%. Comparing base (be16d49) to head (6467cc8).
Report is 1 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #54435         +/-   ##
=================================================
- Coverage   74.7851%   55.8517%   -18.9334%     
=================================================
  Files          1536       1652        +116     
  Lines        361822     603698     +241876     
=================================================
+ Hits         270589     337176      +66587     
- Misses        71592     243310     +171718     
- Partials      19641      23212       +3571     

Flag	Coverage Δ
integration	22.0561% <52.6315%> (?)
unit	71.8293% <89.4736%> (-1.8683%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9656% <ø> (-2.2339%)	⬇️
parser	∅ <ø> (∅)
br	52.6285% <ø> (+4.7131%)	⬆️