fix: preserve all rendering proxy evaluate scripts

[kitsuyui]

Summary

• preserve all evaluates entries from the X-Rendering-Proxy request header
• remove the server-only silent truncation that dropped scripts after the first 10 entries
• update the header parsing regression test to cover unbounded passthrough

Why

Server mode exposed evaluates as a plain string[], but the request parser silently discarded entries after the first 10. That made later scripts disappear without an error even though the programmatic API and README describe the field as a normal string array.

Testing

• bun run lint
• bun run typecheck
• bun run test

[github-actions]

gh-counter

PR gate

	Removed	Added	+/-
TODO/expect-error	0	0	0

Repo dashboard

	main (6aabcd3)	#1659 (21f462a)	+/-
TODO/expect-error	4	4	0

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Reported by gh-counter

[github-actions]

Code Metrics Report

	main (6aabcd3)	#1659 (21f462a)	+/-
Coverage	84.3%	84.2%	-0.1%
Code to Test Ratio	1:0.5	1:0.5	+0.0
Test Execution Time	11s	11s	0s

Details

  |                     | main (6aabcd3) | #1659 (21f462a) |  +/-  |
  |---------------------|----------------|-----------------|-------|
- | Coverage            |          84.3% |           84.2% | -0.1% |
  |   Files             |             11 |              11 |     0 |
  |   Lines             |            243 |             242 |    -1 |
- |   Covered           |            205 |             204 |    -1 |
+ | Code to Test Ratio  |          1:0.5 |           1:0.5 |  +0.0 |
  |   Code              |           1886 |            1885 |    -1 |
  |   Test              |           1072 |            1072 |     0 |
  | Test Execution Time |            11s |             11s |    0s |

Code coverage of files in pull request scope (95.6% → 95.4%)

Files	Coverage	+/-	Status
src/server/request_options.ts	95.4%	-0.2%	modified

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Reported by octocov