feat(explorer): dynamic feeds, wallet SSR alignment, and detail pagination

Align wallet SSR with report token-list, dedupe featured v1 tokens, refresh home and wallet snapshots on a 60s cadence, and drive vanilla SPA chain add/watch from API metadata. Add shared pagination/tabs for address, token, and transaction pages, extend token aggregation helpers, and harden stats API with tests and health checks.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/check-explorer-health.sh

@@ -201,6 +201,31 @@ for url in external_roots:
     except Exception as exc:
         print(f"ERR  {url}  [{exc}]")
 
+print("\n== Native ETH USD (token-aggregation WETH proxy) ==")
+weth = "0xc02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
+try:
+    cg = session.get(
+        "https://api.coingecko.com/api/v3/simple/price",
+        params={"ids": "ethereum", "vs_currencies": "usd"},
+        timeout=15,
+    ).json()
+    cg_usd = float(cg["ethereum"]["usd"])
+    ta = session.get(
+        f"{base}/token-aggregation/api/v1/tokens/{weth}",
+        params={"chainId": 138},
+        timeout=20,
+    ).json()
+    ta_usd = float(ta["token"]["market"]["priceUsd"])
+    delta_pct = abs(ta_usd - cg_usd) / cg_usd * 100.0
+    layer = ta.get("token", {}).get("pricing", {}).get("sourceLayer", "")
+    print(f"     coingecko=${cg_usd:.2f}  explorer=${ta_usd:.2f}  delta={delta_pct:.2f}%  layer={layer}")
+    if abs(ta_usd - 2490.0) < 0.01:
+        mark_failure("     ETH price still at stale repo snapshot $2490")
+    if delta_pct > 5.0:
+        mark_failure(f"     ETH price drift {delta_pct:.2f}% exceeds 5% vs CoinGecko")
+except Exception as exc:
+    mark_failure(f"     native ETH price check failed: {exc}")
+
 if failed:
     sys.exit(1)
 PY