L23 — Route parameter name completion

[shuvroroy]

Implements L23. route('users.show', ['|' => 1]) now completes the
{parameters} of the named route's URI, which the scanner records from
the registration the name is declared on. Also in to_route(),
signedRoute(), and temporarySignedRoute().

Routes generated by Route::resource() are not covered — Laravel derives
their URIs from the resource name via Str::singular(). Filed as L40
rather than guessing at singular forms.

Checklist

If applicable:

• I have updated CHANGELOG.md
• I have updated the documentation (README.md, docs/, examples/)
• I have updated the config schema (config-schema.json)
• I have added/updated tests to cover my changes

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 93.84164% with 21 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/virtual_members/laravel/route_names.rs	90.59%	11 Missing ⚠️
src/completion/source/helpers.rs	91.42%	6 Missing ⚠️
src/virtual_members/laravel/helpers.rs	96.36%	2 Missing ⚠️
src/completion/handler/mod.rs	83.33%	1 Missing ⚠️
src/completion/laravel_route_params.rs	98.41%	1 Missing ⚠️

📢 Thoughts on this report? Let us know!