ci / gate (push) Successful in 6m18s
`wallet-core/src/profiles.toml` carries what runtime metadata does not: genesis hash, SS58 prefix, symbol and decimals, coin type, the endpoint list, block time, and the rule for when the FIPS 204 signing context applies. Three profiles ship: Quantus mainnet at spec 152 with QTC, Planck with PLK (in the wallet only to prove the multi-chain UX), and a local dev node with an empty genesis hash that means "do not check". Endpoints are the names decided on #20 and #53, one per chain; until those exist an override file points a dev run at the public nodes. The override file is the same shape with every field optional: a known id has fields replaced, an unknown id must be complete and is appended. A mainnet endpoint must be wss, a genesis hash must be 66 characters or empty, a context at most 255 bytes; anything else is refused with the profile named. Adding a fourth chain is a TOML entry and no Rust, which the test does. `signing_context_for(profile, spec)` and `genesis_matches(profile, hash)` are the two pure functions the adapter (#19, #20) will call at connect. The app loads `<app data>/profiles.toml` or WALLET_PROFILES and exposes `chains_list`. Closes #18 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014ftBXYuba8ARhQeF74oUgW