test: add per-asset balance fixture covering full Pezkuwi ecosystem (#43)

chains_for_testBalance.json only has one entry per chain (native balance
via a raw RPC query, bypassing the app's real sync pipeline entirely -
this is why it couldn't catch the 2026-07-09 HEZ-on-Asset-Hub silent
sync failure). This new fixture covers individual assets (HEZ/PEZ/USDT/
DOT/ETH/BTC across Pezkuwi's 3 chains) and is meant to drive a test that
goes through the real BalancesUpdateSystem -> AssetCache pipeline, which
is what actually caught that bug.

pezkuwi-overlay/tests/pezkuwi_assets_for_testBalance.json

@@ -0,0 +1,55 @@
+{
+  "description": "Per-asset fixture for exercising the REAL BalancesUpdateSystem -> AssetCache/AssetDao pipeline (not a raw low-level RPC query like chains_for_testBalance.json/BalancesIntegrationTest uses). Each entry asserts an `assets` DB row eventually gets written for that (chainId, assetId) pair for the mainnet Founder account - this is what actually caught the 2026-07-09 HEZ-on-Asset-Hub silent sync failure, which chains_for_testBalance.json's raw-query test could NOT have caught since it bypasses BalancesUpdateSystem entirely. The assertion is 'a row exists', not 'balance is non-zero' - a written zero-balance row is still valid proof the sync pipeline completed for that asset.",
+  "last_updated": "2026-07-09",
+  "account": "5CyuFfbF95rzBxru7c9yEsX4XmQXUxpLUcbj9RLg9K1cGiiF",
+  "assets": [
+    {
+      "chainId": "1aa94987791a5544e9667ec249d2cef1b8fdd6083c85b93fc37892d54a1156ca",
+      "chainName": "Pezkuwi",
+      "assetId": 0,
+      "symbol": "HEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 0,
+      "symbol": "HEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1,
+      "symbol": "PEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1000,
+      "symbol": "USDT"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1001,
+      "symbol": "DOT"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1002,
+      "symbol": "ETH"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1003,
+      "symbol": "BTC"
+    },
+    {
+      "chainId": "69a8d025ab7b63363935d7d9397e0f652826c94271c1bc55c4fdfe72cccf1cfa",
+      "chainName": "Pezkuwi People",
+      "assetId": 0,
+      "symbol": "HEZ"
+    }
+  ]
+}

scripts/sync_from_nova.py

@@ -349,6 +349,15 @@ def sync_tests():
     save_json(OUTPUT_TESTS / "chains_for_testBalance.json", filtered)
     print(f"  chains_for_testBalance.json: {len(fixture)} - {dropped} not in {latest_version.name} + {added} Pezkuwi = {len(filtered)}")
 
+    # Per-asset fixture (pezkuwi_assets_for_testBalance.json) - unlike chains_for_testBalance.json above,
+    # this drives a test that goes through the REAL BalancesUpdateSystem/AssetCache pipeline rather than a
+    # raw RPC query, and covers individual assets (HEZ/PEZ/USDT/DOT/ETH/BTC) rather than just one native
+    # balance per chain. It's Pezkuwi's own curated list, published as-is - no Nova fixture to filter against.
+    pezkuwi_assets_file = PEZKUWI_OVERLAY / "tests" / "pezkuwi_assets_for_testBalance.json"
+    if pezkuwi_assets_file.exists():
+        save_json(OUTPUT_TESTS / "pezkuwi_assets_for_testBalance.json", load_json(pezkuwi_assets_file))
+        print(f"  pezkuwi_assets_for_testBalance.json: {len(load_json(pezkuwi_assets_file)['assets'])} asset(s)")
+
 
 def main():
     print("=" * 60)

tests/pezkuwi_assets_for_testBalance.json

@@ -0,0 +1,55 @@
+{
+  "description": "Per-asset fixture for exercising the REAL BalancesUpdateSystem -> AssetCache/AssetDao pipeline (not a raw low-level RPC query like chains_for_testBalance.json/BalancesIntegrationTest uses). Each entry asserts an `assets` DB row eventually gets written for that (chainId, assetId) pair for the mainnet Founder account - this is what actually caught the 2026-07-09 HEZ-on-Asset-Hub silent sync failure, which chains_for_testBalance.json's raw-query test could NOT have caught since it bypasses BalancesUpdateSystem entirely. The assertion is 'a row exists', not 'balance is non-zero' - a written zero-balance row is still valid proof the sync pipeline completed for that asset.",
+  "last_updated": "2026-07-09",
+  "account": "5CyuFfbF95rzBxru7c9yEsX4XmQXUxpLUcbj9RLg9K1cGiiF",
+  "assets": [
+    {
+      "chainId": "1aa94987791a5544e9667ec249d2cef1b8fdd6083c85b93fc37892d54a1156ca",
+      "chainName": "Pezkuwi",
+      "assetId": 0,
+      "symbol": "HEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 0,
+      "symbol": "HEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1,
+      "symbol": "PEZ"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1000,
+      "symbol": "USDT"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1001,
+      "symbol": "DOT"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1002,
+      "symbol": "ETH"
+    },
+    {
+      "chainId": "e7c15092dcbe3f320260ddbbc685bfceed9125a3b3d8436db2766201dec3b949",
+      "chainName": "Pezkuwi Asset Hub",
+      "assetId": 1003,
+      "symbol": "BTC"
+    },
+    {
+      "chainId": "69a8d025ab7b63363935d7d9397e0f652826c94271c1bc55c4fdfe72cccf1cfa",
+      "chainName": "Pezkuwi People",
+      "assetId": 0,
+      "symbol": "HEZ"
+    }
+  ]
+}