Feat/tanstack demo

[mrhut10]

• assumes that support for configs in jsonc or json #54 has merged as documentation mentions updating your .jsonc config file
• have initially deployed the demo to https://better-auth-cloudflare-tanstack-template.ahut10.workers.dev/ however please feel free to redeploy under a project controlled cloudflare account
• for some reason the getRequest method by tanstack-start isn't populating the request.cf which means the clients locale/geo information isn't coming though.
  • however when I manually injected a log in the workers fetch handler obsolutely CF is providing the request.CF so this may be a current bug in tanstack libary itself.

I'm still learning the better-auth eco system, and deploying to cloudflare, and contributing to this project so please point me in the right direction if could be done better.

[mrhut10]

have just added a commit to fix my local resolution to a branch that had the #54 in it so it now should be ready for a review.

please note @zpg6 my documentation does assume you've already got this MR merged but can be updated to tell user to update the .toml file if need be as hasn't been merged yet

[zpg6]

@mrhut10 Nice! Will take a look and provide feedback

[mrhut10]

just redeployed to fix the schema in D1 in the example, signup/signin is working now.

[mrhut10]

Just realised @zpg6 the deployed example most of the time on sign-up/signin the Hashing func is exceeding CPU usage of my free cloudflare account ( 10ms limit 🤦)

Next week I'll upgrade to a paid account but you may have to deploy your own copy to see it working end to end before next week apologies

effected by #56

I'll upgrade my plan next week which should mitigate and I'll look to alter the hashing settings to what I deem safer as well.