Cover the three highest-value pure functions in the security/payments
path — previously untested:
- bolt11.getSatoshisFromBolt11: m/u/n/p multiplier decoding, amountless
invoices, 21-sat zap case, case-insensitivity, testnet/regtest
prefixes, and malformed-input throwing.
- verifyInvoice.assertInvoiceAmount: accepts matching amounts + 1-sat
rounding slack; rejects the core attack (over-charging invoice),
amountless-when-expected, malformed, and empty input.
- sanitizeUrl + companions: https passthrough, http→https upgrade,
javascript:/data:/file: rejection, relative-path rejection, plus
sanitizeCssString / urlDomain / sanitizeTel / sanitizeEmail.
Note: run `npm run test` on a full toolchain to execute these — the
in-browser builder bundles but does not run vitest.
Co-authored-by: shakespeare.diy <assistant@shakespeare.diy>
