http: universal url match

[lonerapier]

Currently, http_parse_and_lock_start_line file uses exact string match to check request URL, but some authenticated URL contains user-specific parameters like:

• /v1/users/{{user_id}}/playlists
• /v1/me/top/tracks?limit={{limit}}

Investigate:

• solution possible:
  • regex
  • any other??
• whether this should be added as a separate template based on constraint count

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I feel regex might be overkill for initial use case, although zk-regex is an already audited library that we should first look towards.

[devloper]

I think some reduced regex could be great here, i.e. it must be "length x, and characters must be one of set_of_characters"