feat(pumpfun): migrate to buy_v2/sell_v2 and support non-SOL quote assets (#176)

Refresh the vendored IDLs from pump-fun/pump-public-docs @ 9c82f61 and move all
pump.fun trading onto the v2 instruction interface. This is required, not
optional: legacy buy/sell cannot trade coins paired against a quote asset other
than SOL, and USDC is already whitelisted in the on-chain Global account.

Protocol changes absorbed:

- buy_v2 (27 accounts) / sell_v2 (26 accounts) replace the legacy instructions.
  Every account is mandatory and the order is identical for all coins, so the
  conditional cashback/mayhem account lists are gone. Legacy remains available
  via PumpFunInstructionBuilder(use_legacy_instructions=True).
- BondingCurve is 151 bytes: virtual_sol_reserves -> virtual_quote_reserves,
  real_sol_reserves -> real_quote_reserves, plus quote_mint at offset 83. Old
  field names are kept as aliases so existing callers keep working.
- v2 instruction data drops the track_volume OptionBool; amounts are in the
  quote mint's raw units rather than always lamports.
- create_v2 carries a non-SOL quote mint as optional remaining accounts 17-19,
  and CreateEvent gained quote_mint, so extreme_fast_mode can resolve the quote
  asset without an extra fetch.

USDC support: new trade.quote_amounts and filters.allowed_quote_mints config,
accepting "sol"/"usdc" aliases or raw mints. Amounts are per-quote-mint because
1 USDC and 1 SOL are not interchangeable. A coin whose quote mint has no
configured amount is skipped rather than traded at the wrong size, so SOL-only
configs are unaffected.

Bug fixes found while verifying:

- The logs and blocks listeners set no websocket max_size, so any frame over
  1 MiB closed the connection with 1009 and the token in it was lost. Raised
  to 32 MiB.
- PumpSwap priced against the raw quote vault balance, ignoring the new
  Pool.virtual_quote_reserves (i128 at offset 245; live pools are 301 bytes).
  Upstream's note that this field is 0 everywhere is out of date: a live pool
  carries 17.58 SOL against a 148 SOL vault, a 10.15% price error.
- The seller read curve state once at confirmed commitment and silently fell
  back to create-time values, risking a stale creator_vault and ConstraintSeeds.
  It now retries at processed, matching the buyer.
- Account cleanup would burn wrapped SOL when force_burn was set, destroying
  value that closing the account returns. WSOL is now closed without burning.
- The mint scripts treated a landed transaction as a successful one, so a
  reverted buy printed as success. They now assert the on-chain result.

Compute unit limits retuned from mainnet measurements: buy 100k -> 180k,
sell 60k -> 120k. Mint-and-buy is no longer atomic, because create_v2 plus
buy_v2 exceeds the 1232-byte transaction limit; both mint scripts send two
transactions.

Adds learning-examples/pump_v2.py as one shared, standalone v2 toolkit for the
example scripts, and three verification scripts: an offline layout check
against the IDL, a no-funds mainnet simulation, and a live listener matrix that
buys, sells and closes the ATA per listener.

Verified on mainnet: all four listeners (geyser, logs, blocks, pumpportal) and
all eight example scripts completed a real buy, sell and ATA close, each
confirmed by reading the transaction result back rather than trusting
confirmation alone. The USDC path is verified structurally only; no USDC-paired
coin could be found on-chain to exercise it.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

bots/bot-sniper-1-geyser.yaml

@@ -27,6 +27,16 @@ trade:
   buy_slippage: 0.3 # Maximum acceptable price deviation (0.3 = 30%)
   sell_slippage: 0.3
 
+  # Spend amounts for coins paired against a non-SOL quote asset.
+  # pump.fun now supports quote mints other than SOL (USDC first). Amounts are
+  # in that mint's own whole units, so "usdc: 1.0" means one USDC — it is NOT
+  # comparable to buy_amount above. Keys accept the aliases "sol"/"usdc" or a
+  # raw base58 mint address. A coin whose quote mint has no entry here is
+  # skipped rather than bought with a SOL-sized amount.
+  # SOL always uses buy_amount above and needs no entry.
+  #quote_amounts:
+  #  usdc: 1.0
+
   # Exit strategy configuration
   exit_strategy: "time_based" # Options: "time_based", "tp_sl", "manual"
   #take_profit_percentage: 0.1 # Take profit at 10% gain (0.1 = 10%)
@@ -69,6 +79,10 @@ compute_units:
 filters:
   match_string: null # Only process tokens with this string in name/symbol
   bro_address: null # Only trade tokens created by this user address
+  # Restrict which quote assets to trade. Omit (or set null) to allow any quote
+  # mint that has an amount configured under trade.quote_amounts.
+  # Accepts "sol"/"usdc" aliases or raw mint addresses.
+  #allowed_quote_mints: ["sol"]
   listener_type: "geyser" # Method for detecting new tokens: "logs", "blocks", or "geyser"
   max_token_age: 0.001 # Maximum token age in seconds for processing
   marry_mode: false # Only buy tokens, skip selling