Fix: return Yes/No field values as integers in search (GLPI 11)

[Rom1-B]

Checklist before requesting a review

Please delete options that are not relevant.

• I have performed a self-review of my code.
• I have added tests (when available) that prove my fix is effective or that my feature works.
• I have updated the CHANGELOG with a short functional description of the fix or new feature.
• This change requires a documentation update.

Description

• It fixes !46929
• Since 1.24.6, Yes/No field values returned by the search engine (including the REST API search endpoint) are strings "0"/"1" instead of integers 0/1.
• Scripts relying on a truthy check now treat "0" as true, which breaks integrations that worked with 1.24.5.
• The default value applied in search results for Yes/No fields is now an integer, restoring the previous value type.

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