fix(cli): refine cluster doctor diagnostics

[Agent-Hellboy]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 70.89041% with 85 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.11%. Comparing base (2e9d384) to head (1fbf9e4).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/cli/cluster_doctor.go	70.89%	70 Missing and 15 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #112      +/-   ##
==========================================
+ Coverage   57.27%   58.11%   +0.84%     
==========================================
  Files          59       59              
  Lines       10476    10678     +202     
==========================================
+ Hits         6000     6206     +206     
+ Misses       3905     3877      -28     
- Partials      571      595      +24     

Flag	Coverage Δ
pre-merge	58.11% <70.89%> (+0.84%)	⬆️

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

Files with missing lines	Coverage Δ
internal/cli/cluster_doctor.go	65.66% <70.89%> (+6.86%)	⬆️

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[gemini-code-assist]

Code Review

This pull request enhances the cluster doctor utility by adding support for k3s-bundled Traefik, implementing live progress streaming for diagnostic checks, and refining remediation hints to be context-aware. Key technical changes include refactoring check execution into a specification-based model and improving the robustness of Traefik endpoint resolution and log scanning. Feedback suggests optimizing log processing using bufio.Scanner to reduce memory overhead and refactoring resource wait loops to use time.Ticker or context timeouts for more graceful execution.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 5658581147

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".