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

airex-gateway/domain/collection.go

Lines 9 to 19 in dd681e2

	type Collection struct {
	User_id string `db:"user_id"`
	Name string `db:"name"`
	Symbol string `db:"symbol"`
	Description string `db:"description"`
	Total_supply uint32 `db:"total_supply"`
	Seller_fee uint32 `db:"seller_fee"`
	Mint_price float32 `db:"mint_price"`
	Game_resource string `db:"game_resource"`
	Live_mint_start string `db:"live_mint_start"`
	}

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