Apply contest rate limits

[rbennettcw]

Link to Issue

Closes: #8466

Description of Changes

• Prevents thread creation if all active contests have reached the contest post limit for the user
• Returns contest data in the GET /topics route
• Applies limit in ContestWorker where user must have > 0.0005 ETH to post to contest
• Applies limit in ContestWorker where user can post up to 2 threads per contest round
• Moves a SQL query to its own query file
• Include Marcin's UI updates too

Test Plan

Post limit test

• Create a contest (A)
• With a wallet > 0 ETH, create 3 posts in a row
  • Ensure that on the 3rd post, the consumer shows warning "user reached post limit for contest"
• Create a new contest (B)
• With a wallet > 0 ETH, create 1 post
  • Ensure the consumer shows the limit warning for contest A, but succeeds for contest B

ETH requirement test

• With a wallet == 0 ETH, create a post during an active contest
  • Ensure that warning is shown: "user ETH balance insufficient"

Other Considerations

• The only condition in which thread creation is blocked upfront is when the user has reached the post limit for all active contests

[masvelio]

Post limit test

Ok, I got warning from the ContestWorker ThreadCreated: user reached post limit for contest 0x8bCD287DE6F4cF470420966ff53b808D2BEBcFDF (ID 0) but I was able to create a thread anyways. I don't think this is expected. According to the designs and spec, we should show error on the UI and prevent creation of the thread. This means, that I need to get some error from the backend to be able to detect this scenario.

ETH requirement test
Same here, got a warning, but I need an error thrown from the backend API to be able to catch it in the FE and display the message + prevent thread creation

EDIT: on top of that, see my comment here

[rbennettcw]

@masvelio I've applied fixes:

• Thread create error is thrown if all active contests have limits reached
• GET /topics route now returns contest managers + the actions of the current contest, which should be sufficient info for you to render what's needed in the UI

[masvelio]

works now after changes thanks