feat(ui): answer chain.getChainInfo from the host's configured chain set

package.json

@@ -38,7 +38,7 @@
     "smoldot": "3.3.2"
   },
   "overrides": {
-    "@parity/truapi": "0.7.0",
+    "@parity/truapi": "0.8.0",
     "fast-uri": "3.1.5",
     "smoldot": "3.3.2",
     "esbuild": "^0.28.1",

packages/ui/package.json

@@ -33,8 +33,8 @@
     "@dotli/storage": "workspace:*",
     "@dotli/truapi-debug": "workspace:*",
     "@noble/hashes": "^2.2.0",
-    "@parity/truapi": "0.7.0",
-    "@parity/truapi-host": "0.4.0",
+    "@parity/truapi": "0.8.0",
+    "@parity/truapi-host": "0.5.0",
     "@polkadot-api/json-rpc-provider": "^0.2.0",
     "@scure/base": "^2.2.0",
     "neverthrow": "^8.2.0",

packages/ui/src/debug-wire-describe.ts

@@ -68,6 +68,7 @@ const CHAIN_LINKAGE: readonly ChainLinkage[] = [
   { wireTableKey: "CHAIN_GET_SPEC_GENESIS_HASH", stem: "SpecGenesisHash" },
   { wireTableKey: "CHAIN_GET_SPEC_CHAIN_NAME", stem: "SpecChainName" },
   { wireTableKey: "CHAIN_GET_SPEC_PROPERTIES", stem: "SpecProperties" },
+  { wireTableKey: "CHAIN_GET_CHAIN_INFO", stem: "Info" },
   {
     wireTableKey: "CHAIN_BROADCAST_TRANSACTION",
     stem: "TransactionBroadcast",

packages/ui/src/host-callbacks/SessionStore.ts

@@ -44,9 +44,9 @@ export function toSessionUiState(info: SessionUiInfo): TruapiSessionUiState {
   const primaryUsername = info.fullUsername ?? info.liteUsername;
   return {
     connected: true,
-    publicKey: bytesToHex(info.publicKey),
+    publicKey: info.publicKey,
     ...(info.identityAccountId !== undefined
-      ? { identityAccountId: bytesToHex(info.identityAccountId) }
+      ? { identityAccountId: info.identityAccountId }
       : {}),
     ...(info.liteUsername !== undefined
       ? { liteUsername: info.liteUsername }
@@ -244,6 +244,10 @@ function coreLocalStorageKey(key: CoreStorageKey): string {
       return `${CORE_LOCAL_STORAGE_PREFIX}auto-signing:${hexNoPrefix(
         encodeCoreStorageKey(key),
       )}`;
+    // Wallet-bound capabilities for the active pairing: one slot, unlike the
+    // legacy per-product `AutoSigningKey` above.
+    case "AutoSigningKeys":
+      return `${CORE_LOCAL_STORAGE_PREFIX}auto-signing-keys`;
     case "LastProcessedPairingStatement":
       return `${CORE_LOCAL_STORAGE_PREFIX}last-processed-pairing-statement`;
     case "AuthSession":
@@ -252,7 +256,11 @@ function coreLocalStorageKey(key: CoreStorageKey): string {
 }
 
 function storesSecretMaterial(key: CoreStorageKey): boolean {
-  return key.tag === "AllowanceKeys" || key.tag === "AutoSigningKey";
+  return (
+    key.tag === "AllowanceKeys" ||
+    key.tag === "AutoSigningKey" ||
+    key.tag === "AutoSigningKeys"
+  );
 }
 
 async function encodeCoreStorageValue(

packages/ui/src/host-callbacks/SupportedChains.ts

@@ -0,0 +1,47 @@
+// dot.li — TrUAPI supported-chains callback (RFC 0026)
+//
+// Maps the protocol's closed chain-role enum onto the active environment's
+// config slots. The core answers `chain.getChainInfo` from this one set,
+// resolving a requested identifier and mapping a miss to `NotSupported`.
+//
+// The set is filtered through the same per-backend predicate as
+// `featureSupported`, so the two advertisements can never disagree: in
+// RPC-gateway mode Bulletin is intentionally absent (its content is served
+// via IPFS gateways; the core-owned Bulletin connection seam in `Chain.ts`
+// is not a product-facing advertisement).
+
+import type { Features } from "@parity/truapi-host";
+import type { ChainIdentifier } from "@parity/truapi";
+import { toHexString } from "@parity/truapi/scale";
+import { getBackend } from "@dotli/config/mode";
+import { getActiveServicesConfig, getNetwork } from "@dotli/config/network";
+import { isChainSupported as isSmoldotChainSupported } from "@dotli/resolver/chains";
+import { isRpcChainSupported } from "@dotli/resolver/rpc-chain";
+
+export function createSupportedChains(): Features["supportedChains"] {
+  return () => {
+    const cfg = getActiveServicesConfig();
+    const slots: { identifier: ChainIdentifier; genesis: string }[] = [
+      { identifier: "Relay", genesis: cfg.relay.genesis },
+      { identifier: "AssetHub", genesis: cfg.assethub.genesis },
+      { identifier: "People", genesis: cfg.people.genesis },
+      { identifier: "Bulletin", genesis: cfg.bulletin.genesis },
+    ];
+    const isSupported =
+      getBackend() === "rpc-gateway"
+        ? isRpcChainSupported
+        : isSmoldotChainSupported;
+    // The environment id ("paseo-next-v2"), not a bare ecosystem ("paseo"):
+    // the field is informational and two environments of one ecosystem must
+    // stay distinguishable in product logs.
+    return Promise.resolve({
+      network: getNetwork(),
+      chains: slots
+        .filter(({ genesis }) => isSupported(genesis))
+        .map(({ identifier, genesis }) => ({
+          identifier,
+          genesisHash: toHexString(genesis),
+        })),
+    });
+  };
+}

packages/ui/src/host-callbacks/UserConfirmation.ts

@@ -194,7 +194,7 @@ function formatRawPayload(payload: RawPayload): string {
 }
 
 function formatDerivationIndex(index: DerivationIndex): string {
-  return index.tag === "Left" ? String(index.value) : index.value;
+  return index.tag === "Index" ? String(index.value) : index.value;
 }
 
 function formatProductAccount(account: ProductAccountId): string {

packages/ui/src/host-callbacks/handlers.ts

@@ -19,6 +19,7 @@ import {
 import { createPreimageAdapters } from "./Preimage";
 import { createChainConnect } from "./Chain";
 import { createFeatureSupported } from "./FeatureSupported";
+import { createSupportedChains } from "./SupportedChains";
 import { createThemeSubscribe } from "./Theme";
 import { createAuthStateChanged } from "./AuthState";
 import { createSessionStoreAdapters } from "./SessionStore";
@@ -62,7 +63,10 @@ export function createHostCallbacks(
       blockingModalScope,
       promptLimiter,
     ),
-    features: { featureSupported: createFeatureSupported() },
+    features: {
+      featureSupported: createFeatureSupported(),
+      supportedChains: createSupportedChains(),
+    },
     productStorage: {
       read: createLocalStorageRead(),
       write: createLocalStorageWrite(),

packages/ui/tests/debug-wire-describe.test.ts

@@ -330,7 +330,7 @@ describe("chain-family drift guard", () => {
     // When
     const derived = [...derivedTagRoots, ...controlOnlyTags];
 
-    // Then: pins the exact current 15-entry legacy vocabulary as a literal
+    // Then: pins the exact current 16-entry legacy vocabulary as a literal
     // snapshot, so it can't drift silently.
     expect(derived).toEqual([
       "remote_chain_head_follow",
@@ -344,6 +344,7 @@ describe("chain-family drift guard", () => {
       "remote_chain_spec_genesis_hash",
       "remote_chain_spec_chain_name",
       "remote_chain_spec_properties",
+      "remote_chain_info",
       "remote_chain_transaction_broadcast",
       "remote_chain_transaction_stop",
       "remote_chain_head_follow_stop",

packages/ui/tests/legacy-host-bridge.test.ts

@@ -185,7 +185,7 @@ describe("createLegacyNovaChainHeadProvider", () => {
           value: {
             productAccountId: {
               dotNsIdentifier: "localhost:3000.dot",
-              derivationIndex: { tag: "Left", value: 0 },
+              derivationIndex: { tag: "Index", value: 0 },
             },
           },
         }),
@@ -214,7 +214,7 @@ describe("createLegacyNovaChainHeadProvider", () => {
           value: {
             productAccountId: {
               dotNsIdentifier: "other-product.dot",
-              derivationIndex: { tag: "Left", value: 0 },
+              derivationIndex: { tag: "Index", value: 0 },
             },
           },
         }),

packages/ui/tests/session-store.test.ts

@@ -54,22 +54,25 @@ async function flushMicrotasks(): Promise<void> {
   await Promise.resolve();
 }
 
+// The core reports these as `Bytes32` (hex), so the UI state carries them
+// through unchanged rather than encoding them.
+const SESSION_PUBLIC_KEY =
+  "0x000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f";
+const SESSION_IDENTITY_ACCOUNT_ID =
+  "0xa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf";
+
 function connectedSessionUiInfo() {
   return {
-    publicKey: new Uint8Array(Array.from({ length: 32 }, (_, i) => i)),
-    identityAccountId: new Uint8Array(
-      Array.from({ length: 32 }, (_, i) => 0xa0 + i),
-    ),
+    publicKey: SESSION_PUBLIC_KEY,
+    identityAccountId: SESSION_IDENTITY_ACCOUNT_ID,
     liteUsername: "pgherveou.04",
   };
 }
 
 const CONNECTED_DETAIL = {
   connected: true,
-  publicKey:
-    "0x000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f",
-  identityAccountId:
-    "0xa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf",
+  publicKey: SESSION_PUBLIC_KEY,
+  identityAccountId: SESSION_IDENTITY_ACCOUNT_ID,
   liteUsername: "pgherveou.04",
   primaryUsername: "pgherveou.04",
 };

packages/ui/tests/user-confirmation.test.ts

@@ -135,7 +135,7 @@ describe("user confirmation modal", () => {
         value: {
           account: {
             dotNsIdentifier: "truapi-playground.dot",
-            derivationIndex: { tag: "Left", value: 2 },
+            derivationIndex: { tag: "Index", value: 2 },
           },
           payload: {
             blockHash:
@@ -228,7 +228,7 @@ describe("user confirmation modal", () => {
         request: {
           account: {
             dotNsIdentifier: "other-product.dot",
-            derivationIndex: { tag: "Left", value: 4 },
+            derivationIndex: { tag: "Index", value: 4 },
           },
           transcriptLabel: "0x706f703a61697264726f70",
           items: [
@@ -271,7 +271,7 @@ describe("user confirmation modal", () => {
         value: {
           signer: {
             dotNsIdentifier: "truapi-playground.dot",
-            derivationIndex: { tag: "Left", value: 3 },
+            derivationIndex: { tag: "Index", value: 3 },
           },
           genesisHash:
             "0xbf0488dbe9daa1de1c08c5f743e26fdc2a4ecd74cf87dd1b4b1eeb99ae4ef19f",
@@ -347,7 +347,7 @@ describe("user confirmation modal", () => {
         callingProductId: "truapi-playground.dot",
         context: {
           productId: "truapix-playground.dot",
-          suffix: { tag: "Left", value: 0 },
+          suffix: { tag: "Index", value: 0 },
         },
         ringLocation: {
           chainId:
@@ -397,7 +397,7 @@ describe("user confirmation modal", () => {
         callingProductId: "truapi-playground.dot",
         context: {
           productId: "truapix-playground.dot",
-          suffix: { tag: "Left", value: 0 },
+          suffix: { tag: "Index", value: 0 },
         },
         ringLocation: {
           chainId: