Refactor Redis for better DX

[christianhelp]

Description

• A lot of our common Redis calls are spread all around our repo.
• The only difference in calls is a key
• This makes it very hard for those attempting to swap Redis providers for alternatives like Upstash to refactor all of the code and there are large opportunities for oversight
• The way that the keys are designed currently forces users to use both a development and production instance of their Redis provider which can become costly and overall a hassle to deal with

Requirements

• Create general Redis functions under apps/web/src/lib/utils/server/redis.ts to handle basic calls for sadd,hset,set,srem and any other generic Redis functions that appear two or more times.
• For each of those functions created, append an environment variable such as HK_ENV with some sort of separator such as a "_" or "-" between the environment variable and the key itself.

[linear]

HK-185 Refactor Redis for better DX