KarpelesLab / libwallet / 25827287175

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wltswap: refresh balances + register unknown TokenOut after a swap

Two post-execute hooks for Swap:execute that mirror what the other
broadcast paths (wlttx, wltacct sign_api, wltbase web3) already do:

1. NotifyTxBroadcast: the balance poller subscribes to tx:broadcast
   and triggers an immediate refresh. Aggregator-driven swaps
   (Jupiter / dFlow / 1inch) bypass the wlttx path that fires this
   event today, so spent + earned balances waited up to 60 s for the
   next polling tick. Nudged from swapExecute now.

2. EnsureToken: when TokenOut isn't native and the user has no
   matching Token row yet, insert one with the swap quote's
   symbol + decimals. Without it, Token:list keeps showing the
   token as Unknown until the user manually calls Token:create.
   New exported helper in wlttoken (idempotent — second call with
   the same (network, address) returns the existing row).

Both hooks are best-effort: any failure is logged and ignored so a
schema or DB hiccup doesn't invalidate a swap that already broadcast.

Integration tests live in wlttest/ to reuse InitTempEnv +
MakeDefaultNetworks (wlttoken doesn't import wltbase, so the helper
can't be unit-tested in-package without a hand-rolled env mock).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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