Add authentication to APIs

[Shachindra]

Integrate

1. Auth using Solana Wallet - Cryptographic Signatures
2. PASETO for Session Management
3. Validate Database Model

[thisisommore]

Trying to understand this https://github.com/MyriadFlow/airex-gateway/blob/dd681e2fab900f51f38cd78106b454555d4b342e/domain/collection.go#L9-L19 the collection itself is wrapped in user methods and also has user id, but I think collection can be many for any user and I don't find any logic for it

[thisisommore]

• [ ] Ask for network and verify signature according to the network