Dev fix interface

[henriqueaklein]

SDK Wrapper Foundation
P/Invoke layer rewritten (GeniusSDKWrapper.cs)

• Added 6 new DllImport declarations: GeniusSDKInit, GeniusSDKInitWithKey, GeniusSDKInitWithMnemonic, GeniusSDKGetInitializationStatus, GeniusSDKFree, GeniusSDKLoadLogConfig
• Added 3 new struct types: GeniusStatusInfo, GeniusMnemonic, GeniusMnemonicAndStatus
• Removed 3 deprecated init DllImports (old multi-param GeniusSDKInit, GeniusSDKInitSecure, GeniusSDKInitMinimal)
  Init coroutine rewritten
• Init deferred — Awake no longer auto-inits; triggered via BeginInitialize(basePath) or BeginInitializeWithMnemonic(basePath, mnemonic)
• Async readiness polling via GetInitializationStatus() — isReady set only at 100%
• Config generation restructured: added BuildSgnsConfigJson() (is_processor, node_type, authorized_full_node, bootstrap_fullnodes), simplified BuildNetworkConfigJson() (port_seed: 42001, auto_dht: true + preserved pubsub/bootstraps/upnp fields), removed dev_config.json disk write (now inline), removed RNGCryptoServiceProvider key generation
• BuildCrdtConfigJson and BuildLogConfigJson preserved unchanged

Native binaries

• macOS bundle replaced with Release build (131 MB, x86_64+arm64) + 67 MB dSYM
• git-lfs configured for large file tracking
• iOS, Android, Linux, Windows pending builds
  Phase 2 — Account Wrappers
  4 account management P/Invoke declarations added
• GeniusSDKGetAvailableAccounts() → public GetAvailableAccounts()
• GeniusSDKAddAccountWithMnemonic(mnemonic) → public AddAccountWithMnemonic()
• GeniusSDKSelectGeniusAccount(publicAddress) → public SelectGeniusAccount()
• GeniusSDKSetPayoutAddress(publicAddress) → public SetPayoutAddress()
• Public GetInitializationStatus() and Free(IntPtr) wrappers exposed

All existing public API preserved (GetBalance, GetGNUSPrice, PayDev, GetProcessingStatus, TokenID, Transfer, Mint, etc.)
Phase 3 — UI Scripts (code only, unwired)

• GeniusSDKConnectScreen.cs — startup popup: Skip (basic init) vs Connect (mnemonic), DOTween + EscapeManager
• GeniusSDKWalletPanel.cs — Settings popup section: address display, set payout, add account from mnemonic
• SettingManager.cs — integrated wallet panel show/hide
• WIRING-SPEC.md — step-by-step for Unity dev to wire the UI

What's not included

• Unity scene wiring
• iOS / Android / Linux / Windows native binaries
• UnityGeniusSDK sibling synced with same code on dev_fix_interface