fix: quote the php binary path and raise the blueprint focus contrast

[lightbulbman]

Summary

Two independent fixes, one commit each.

Quote the PHP binary path when linting generated flat files. Functions_Snippet_Handler_Test shells out to php -l to confirm a generated flat file compiles, building the command with escapeshellcmd( PHP_BINARY ). That function escapes shell metacharacters but does not quote whitespace, so any PHP binary installed under a path containing a space is split into separate words by the shell. On such a machine all seven guard tests fail with sh: /Users/…/Library/Application: No such file or directory rather than a lint result. escapeshellarg() quotes the whole path. CI is unaffected either way because its runner path has no spaces; the failure only appears locally, for example with Laravel Herd on macOS, where it looks like a genuine test failure.

Raise the blueprint form focus contrast. The blueprint form's hover and :focus-visible state puts --cs-color-accent (#2271b1) on --cs-color-accent-subtle (#c9e1f5), which measures 3.83:1 — below the 4.5:1 WCAG AA threshold for normal text. --cs-color-accent-hover (#0a4b78) on the same background measures 6.80:1. AGENTS.md requires accessible focus behaviour.

Verification

• npm run test:php — 261 tests, 0 failures. On a PHP binary path containing a space the same suite reported 7 failures before this change, all in Functions_Snippet_Handler_Test; that file's 8 tests now pass.
• npm run build — compiles successfully
• npm run lint:php, lint:styles — clean
• Contrast ratios computed against the WCAG relative luminance formula.

Summary by CodeRabbit

• Bug Fixes
  • Improved sidebar item hover and keyboard-focus colors for better contrast and visibility.
  • Improved handling of PHP executable paths during validation, reducing issues when paths contain special characters.

[coderabbitai]

Walkthrough

The change updates the sidebar hover and focus-visible color. It also changes PHP lint command quoting from escapeshellcmd() to escapeshellarg().

Changes

Sidebar state color

Layer / File(s)	Summary
Sidebar state color update src/css/manage/blueprints/_form-layout.scss	The sidebar hover and focus-visible states use --cs-color-accent-hover. Comments document the contrast values.

PHP lint command quoting

Layer / File(s)	Summary
PHP binary shell quoting tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php	The PHP lint command uses escapeshellarg() to quote PHP_BINARY.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: 🟡 Moderate · up to f4d64

Keyboard users may not be able to see which blueprint form control has focus. Add a sufficiently contrasting visible focus indicator before merge.

🚥 Pre-merge checks | ✅ 4 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Pr Hygiene	⚠️ Warning	The PR title is a short conventional-commit summary. The description exists. The two commits have valid subjects and no attribution trailers. The PR description, Summary and Verification sections, inc…	Rewrite the PR description as a factual summary of the two changes and their verification. Remove the causal rationale, deliberation, and local-environment narrative. Keep only necessary change and verification facts.
Scope Discipline	⚠️ Warning	The PR mixes two unrelated concerns. tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php:55 changes PHP subprocess path quoting. src/css/manage/blueprints/_form-layout.scss:51-57 cha…	Split the work into two focused PRs. Keep the PHP binary quoting fix in one PR. Move the blueprint form contrast fix to a separate PR.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title uses the required conventional-commit format, stays within 72 characters, and describes both fixes in the changeset.
Correctness And Security	✅ Passed	No correctness or security defect was introduced. In tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php:55, escapeshellarg(PHP_BINARY) correctly quotes paths with spaces and reduces she…
Ponytail: No Over-Engineering	✅ Passed	No needless complexity is introduced. The PHP fix changes one existing argument from escapeshellcmd() to escapeshellarg() at tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php:55.…

Full details: Pr Hygiene

Explanation

The PR title is a short conventional-commit summary. The description exists. The two commits have valid subjects and no attribution trailers. The PR description, Summary and Verification sections, includes author reasoning and local-environment narrative instead of only a factual change summary and verification. This conflicts with the repository PR-description policy.

Full details: Scope Discipline

Explanation

The PR mixes two unrelated concerns. tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php:55 changes PHP subprocess path quoting. src/css/manage/blueprints/_form-layout.scss:51-57 changes blueprint form hover and focus contrast. The two commits change different files and subsystems.

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Actionable comments posted: 1

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Inline comments:
In `@src/css/manage/blueprints/_form-layout.scss`:
- Line 57: Add a visible :focus-visible outline to the focused control in the
form-layout styles, ensuring the outline color provides at least 3:1 contrast
against adjacent colors. Preserve the existing focus fill and hover color
behavior while replacing the removed browser focus indication with the
accessible outline.

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ℹ️ Review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 06e0eb8 and f4d646d.

📒 Files selected for processing (2)

• src/css/manage/blueprints/_form-layout.scss
• tests/unit/Flat_Files/Handlers/Functions_Snippet_Handler_Test.php

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