gaiad: v27.4.0 + statesync-skip-if-data + wasm-snapshot seed (port cursor host fix)

Live chain is v27.4.0 (abci_info); v25.3.2 halts at the v26/v27 upgrade heights (ghcr
lags but v27.4.0 IS pullable). Statesync omits CosmWasm + IBC 08-wasm files -> gaia panics
'wasmlckeeper failed initialize pinned codes / Error opening Wasm file'. init.sh now: skip
statesync if data/application.db exists (idempotent restart, preserves a restored snapshot);
on fresh statesync, seed wasm from polkachu cosmos_wasmonly.tar.lz4. Porting cursor's host
fix into the repo (host /root/rpc edits get reverted by run-rpc-update re-clone).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

compose_registry.json

@@ -264,6 +264,23 @@
       "arbitrum-nova-nitro-archive-pebble-path"
     ]
   },
+  {
+    "chain": "nova",
+    "client": "nitro",
+    "compose_file": "arb/nitro/arbitrum-nova-nitro-minimal-pebble-hash",
+    "features": [
+      "hash",
+      "pebble"
+    ],
+    "network": "arbitrum",
+    "node": null,
+    "relay": null,
+    "stack": "arb",
+    "type": "minimal",
+    "volumes": [
+      "arbitrum-nova-nitro-minimal-pebble-hash"
+    ]
+  },
   {
     "chain": "nova",
     "client": "nitro",
@@ -351,6 +368,23 @@
       "arbitrum-one-nitro-archive-pebble-path"
     ]
   },
+  {
+    "chain": "one",
+    "client": "nitro",
+    "compose_file": "arb/nitro/arbitrum-one-nitro-minimal-pebble-hash",
+    "features": [
+      "hash",
+      "pebble"
+    ],
+    "network": "arbitrum",
+    "node": null,
+    "relay": null,
+    "stack": "arb",
+    "type": "minimal",
+    "volumes": [
+      "arbitrum-one-nitro-minimal-pebble-hash"
+    ]
+  },
   {
     "chain": "one",
     "client": "nitro",
@@ -403,6 +437,23 @@
       "arbitrum-sepolia-nitro-archive-pebble-hash"
     ]
   },
+  {
+    "chain": "sepolia",
+    "client": "nitro",
+    "compose_file": "arb/nitro/arbitrum-sepolia-nitro-minimal-pebble-hash",
+    "features": [
+      "hash",
+      "pebble"
+    ],
+    "network": "arbitrum",
+    "node": null,
+    "relay": null,
+    "stack": "arb",
+    "type": "minimal",
+    "volumes": [
+      "arbitrum-sepolia-nitro-minimal-pebble-hash"
+    ]
+  },
   {
     "chain": "sepolia",
     "client": "nitro",