FOLLOW-UP 3: Live pool monitor + arb + wallet transfer

Replace the static pool inputs with a live polling system. Keep the existing encoder, Permit2 flow, and activity log.

1. TOKEN PAIR SELECTION:

   • Two address fields at top: "Token A" and "Token B"
   • Default: PONS (0x39dbed3a2bd333467115de45665cc57f813c4571) and USDG (0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168)
   • currency0/currency1 determined by BigInt comparison (lower address = currency0)
   • Show token symbols via symbol() call on each address
   • User can switch to any pair by pasting different token addresses

2. LIVE POLLING (every 30s):

   • Scan all 7 fee/tickSpacing combos: (0,1),(0,10),(500,10),(2500,25),(3000,60),(10000,200),(30000,600)
   • poolId = keccak256(abi.encode(currency0, currency1, fee, tickSpacing, 0x0))
   • Read last tick via eth_getLogs (SWAP_TOPIC: 0x40e9cecb9f5f1f1c5b9c97dec2917b7ee92e57ba5563708daca94dd84ad7112f, topic1=poolId, last 100 blocks)
   • Price = 1.0001^tick
   • No swaps in 100 blocks = inactive
   • If any RPC call errors (rate limit, timeout, down), wait 60s before retrying. Show "RPC error, retrying in 60s" in status. Do not crash or stop polling.

3. DISPLAY:

   • Table of active pools: | Fee | TickSpacing | Price | Swaps (100 blocks) | Active? |
   • Top 5 pairwise spreads: | Pool A | Pool B | Spread% | Fee Cost% | Net% | Verdict (GREEN/RED) |
   • Balance display: Token A and Token B balances at top of page, updated after each transaction
   • Status bar showing last poll time and any errors

4. EXECUTE:

   • When user clicks a spread row, auto-fill poolKey objects for both pools
   • Quote swap 1 output via PoolManager before building calldata. If quote returns 0, warn "no liquidity" and disable send
   • Use quoted PONS amount minus 0.5% slippage as ponsAmount
   • Dry run → send (existing flow, unchanged)
   • Auto mode toggle: ON = auto-execute when net% > threshold (user-settable, default 0.5%). OFF = user must click send.
   • In auto mode, prevent double-fire: if a transaction is pending, do not submit another until receipt confirmed

5. WALLET TRANSFER (emergency switch):

   • Section at bottom: "TRANSFER TO NEW WALLET"
   • Input field: "New wallet address" (0x...)
   • Three buttons: "Transfer Token A" / "Transfer Token B" / "Transfer ETH"
   • Shows current balance of each asset before transfer
   • Warning text: "Sends ALL of this asset to the new address. Cannot undo."
   • Calls token.transfer(newAddress, balance) or raw ETH transfer via eth_sendTransaction
   • Displays tx hash after confirmation
   • Works for whatever tokens are in the Token A / Token B fields

6. KEEP UNCHANGED:

   • CONNECT WALLET button
   • Permit2 approve flow (sequential, USDG then PONS, receipt confirmed before next)
   • ERC20 approve to Permit2 (checked before Permit2 approve)
   • buildCalldata() and buildAtomicCalldata()
   • Activity log with tx hashes and status
   • 20-minute deadline on swaps
   • All existing error handling and button locking

ADDRESSES: PONS: 0x39dbed3a2bd333467115de45665cc57f813c4571 (currency0, 18 decimals)

USDG: 0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168 (currency1, 6 decimals)

SWAP_TOPIC: 0x40e9cecb9f5f1f1c5b9c97dec2917b7ee92e57ba5563708daca94dd84ad7112f

PoolManager: 0x8366a39CC670B4001A1121B8F6A443A643e40951

Permit2: 0x000000000022D473030F116dDEE9F6B43aC78BA3

Router: 0x8876789976dEcBfCbBbe364623C63652db8C0904

RPC: https://rpc.mainnet.chain.robinhood.com

Chain ID: 4663

DELIVERABLE: Updated index.html + v4-arb-encoder.js. Same repo.