* (security) Mandate content-type on POST calls
* (security) Add JSON content-type in POST requests with a body
* Added Content Type on missing endpoints
* (review) docs and newlines
* (docs) add JSON content type header
* style(clang-format): fix lint errors
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Co-authored-by: axfla <axfla@hotmail.fr>
Co-authored-by: ReenigneArcher <42013603+ReenigneArcher@users.noreply.github.com>