fix(hono-base): prevent options object mutation

[yusukebe]

Fixes #3970
Based on #3971

As the comment, the following test does not pass.

const opts = { strict: false }
const a1 = new Hono(opts)
const a2 = new Hono(opts)

a2.get('/hello', (c) => c.text('hello'))

const res = await a2.request('/hello/')
expect(res.status).toBe(200)
expect(await res.text()).toBe('hello')

This means opts passed to Hono's options will be mutated. This PR will fix it.

The author should do the following, if applicable

• Add tests
• Run tests
• bun run format:fix && bun run lint:fix to format the code
• Add TSDoc/JSDoc to document the code

[github-actions]

Bundle size check

	main (8796371)	#3975 (bf85622)	+/-
Bundle Size (B)	18,958B	18,948B	-10B
Bundle Size (KB)	18.51K	18.5K	-0.01K

Compiler Diagnostics

	main (8796371)	#3975 (bf85622)	+/-
Files	261	261	0
Lines	116,442	116,441	-1
Identifiers	114,436	114,434	-2
Symbols	303,841	303,842	1
Types	214,827	214,832	5
Instantiations	3,091,598	3,091,594	-4
Memory used	453,418K	453,736K	318K
I/O read	0.02s	0.03s	0.01s
I/O write	0s	0s	0s
Parse time	0.81s	0.67s	-0.14s
Bind time	0.36s	0.28s	-0.08s
Check time	5.69s	5.56s	-0.13s
Emit time	0s	0s	0s
Total time	6.86s	6.51s	-0.35s

---

Reported by octocov

[yusukebe]

Hi @usualoma !

Can you review this?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.29%. Comparing base (8796371) to head (db51c9e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3975      +/-   ##
==========================================
- Coverage   91.29%   91.29%   -0.01%     
==========================================
  Files         168      168              
  Lines       10772    10771       -1     
  Branches     3057     3069      +12     
==========================================
- Hits         9834     9833       -1     
  Misses        937      937              
  Partials        1        1              

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[usualoma]

@yusukebe Thanks for the fix. I think it looks good!

[yusukebe]

@usualoma Thanks!

Hi @ehsan2003

You have created the PR, but I will merge this PR, making you a co-author. I appreciate your contribution!