KarpelesLab / libwallet / 24839594979

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wltwallet: Wallet:probeActivity + Wallet:promoteMnemonic

Two new endpoints for the mnemonic-import → MPC migration flow the
user walked through. Probe is read-only, promote is the side-
effecting migration — strictly separate per the user's direction.

Wallet:probeActivity

  Takes a mnemonic-backed wallet + KeyDescription to decrypt the
  share, enumerates BIP44-standard paths for every supported chain,
  probes each RPC in parallel, returns one row per (chain, variant)
  candidate.

  Candidates covered:
    - Bitcoin: BIP84 native segwit + BIP44 legacy
    - Litecoin: BIP84
    - Monacoin: BIP84 + BIP44
    - Bitcoin Cash: BIP44 (no segwit)
    - Dogecoin: BIP44 (no segwit)
    - Ethereum: BIP44 coin_type 60 mainnet (same derivation covers
      all EVM chains; probing other EVMs is a follow-up)
    - Solana: Sollet seed[:32] convention + Phantom SLIP-0010
      m/44'/501'/0'/0'. Both are "correct" depending on the wallet
      the user came from.

  Per-candidate probe errors land on `row.error` so one upstream
  failure doesn't fail the whole scan. Default 10 s per-candidate
  timeout; probing runs concurrently.

Wallet:promoteMnemonic

  Takes the chains the user selected from the probe output and, for
  each, creates a fresh MPC wallet whose master privkey is the
  mnemonic-derived privkey at that chain's BIP32 path. Each chain
  goes through a full tss-lib resharing — the old committee is a
  synthesized 1-of-1 share with Xi = derived privkey, the new
  committee is the TSS descriptors the caller provided.

  Source mnemonic wallet is NOT modified; caller deletes it
  separately once every migrated wallet is verified operational.

  secp256k1 source wallets only in this release; ed25519 mnemonic
  migration is a follow-up.

Derivation helpers moved to production

  derivePrivkeyFromSeed / parseBip32Path / slip10DeriveEd25519 /
  derivePubkeyForPath are now in wallet_raw.go (moved from test) so
  probe + promote + future fixes to the direct-si... (continued)

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