refactor: replace interface{} with any for clarity and modernization

[reddaisyy]

Overview

This change replaces occurrences of interface{} with the predeclared identifier any, introduced in Go 1.18 as an alias for interface{}.

As noted in the Go 1.18 Release Notes:
This improves readability and aligns the codebase with modern Go conventions.

[gemini-code-assist]

Summary of Changes

Hello @reddaisyy, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request modernizes the Go codebase by adopting the any keyword, which serves as a more readable alias for interface{} since Go 1.18. This refactoring enhances code clarity and readability across several files, ensuring the project adheres to contemporary Go programming practices without altering functionality.

Highlights

• Go Language Modernization: Replaced all occurrences of the interface{} type with the any predeclared identifier, introduced in Go 1.18. This change improves code readability and aligns the codebase with modern Go conventions.

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[gemini-code-assist]

Code Review

This pull request modernizes the codebase by replacing interface{} with its alias any, introduced in Go 1.18. The changes are applied consistently across the DA visualization server, its tests, and the blob decoder tool. This refactoring improves code clarity and aligns with modern Go practices. The changes are correct and I have no further suggestions.

[codecov]

Codecov Report

❌ Patch coverage is 23.80952% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.86%. Comparing base (c6dd42c) to head (f1914b9).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tools/blob-decoder/main.go	0.00%	11 Missing ⚠️
pkg/rpc/server/da_visualization.go	50.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2781      +/-   ##
==========================================
+ Coverage   61.57%   62.86%   +1.28%     
==========================================
  Files          82       82              
  Lines        8715     6912    -1803     
==========================================
- Hits         5366     4345    -1021     
+ Misses       2845     2063     -782     
  Partials      504      504              

Flag	Coverage Δ
combined	62.86% <23.80%> (+1.28%)	⬆️

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