Filtering `filterAvailable` by `isQuantumSafe` removed Polkadot and Kusama from
`selectableNetworks`, and `@polkadot/types-known` throws for a chain it holds
upgrade history for but cannot find:
Error: Unable to find info for chain kusama
at mapRaw (@polkadot/types-known/upgrades/index.js:13:15)
which made `@polkadot/api` fail at *import* — nothing to do with Quantus, and
not diagnosable from the message.
The mistake was gating a library primitive. These lists say what Substrate
knows about; what a wallet offers is the wallet's decision, and `isQuantumSafe`
stays exported so the extension can make it in its own chain list. Keeping them
complete also means a pasted Polkadot address still decodes and renders as what
it is — recognisable, and therefore refusable. A wallet that cannot decode an
address it will not accept can only say "invalid", which reads as a typo rather
than a warning.
`index.spec.ts` is restored from upstream with only the testnet-exposure and
shared-prefix deltas re-applied, since its network-ordering assertions had
started passing vacuously once Polkadot and Kusama left the list.
Also corrects Heisenberg's token symbol to HEI; `system_properties` on
wss://a1-heisenberg.quantus.cat says HEI, not QTC.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012uDUodEcRbBwNRi3UCmw8f
@polkadot/networks
A list of all available Substrate networks and their applicable prefixes.
This list is periodically checked against the master list available at https://github.com/paritytech/ss58-registry/blob/main/ss58-registry.json