feat: Implement initial authentication and wallet management using Re…

[rahimatonize]

Implements a client-side session system that treats the connected Stellar wallet public key as the authenticated user. Sessions persist across page reloads via localStorage and are structured for easy future backend auth integration.

New Files

services/auth/session.service.ts
— Session CRUD:

createSession(publicKey)
,

getSession()
,

clearSession()
,

isAuthenticated()
. Stores a { publicKey, connectedAt } object in localStorage under the dongle_session key.

context/auth.context.tsx
—

AuthProvider
+

useAuth()
hook exposing publicKey,

isAuthenticated
, isLoading, login(), logout(). Restores session on mount and cross-checks wallet connectivity to clear stale sessions.
Modified Files

context/wallet.context.tsx
— Calls sessionService.createSession() on successful wallet connect and sessionService.clearSession() on disconnect to keep localStorage in sync.

app/providers.tsx
— Wraps

AuthProvider
inside

WalletProvider
so the auth layer can verify wallet connectivity during session restore.
ARCHITECTURE
WalletProvider ← outermost, initialises Freighter state
└─ AuthProvider ← restores session from localStorage on mount
└─ App
Connect flow: WalletProvider.connect() → Freighter approval → sessionService.createSession(address) → localStorage updated
Refresh flow:

AuthProvider
mount → sessionService.getSession() → verify wallet still connected → restore auth state
Logout flow: WalletProvider.disconnect() → sessionService.clearSession() → localStorage cleared
closes #5

[Iwueseiter]

@rahimatonize Please resolve the conflicts

[rahimatonize]

conflict resolved.