Sync workspace: config, docs, scripts, CI, operator rules, and submodule pointers.

- Update dbis_core, cross-chain-pmm-lps, explorer-monorepo, metamask-integration, pr-workspace/chains
- Omit embedded publish git dirs and empty placeholders from index

Made-with: Cursor

thirdweb-core-2103-test/src/Create2Probe.sol

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.11;
+
+/// @dev Minimal contract deployed via CREATE2 for VMID 2103 RPC smoke tests.
+contract Create2Probe {
+    uint256 public constant VMID_TAG = 2103;
+
+    function ping() external pure returns (bytes32) {
+        return keccak256("create2-probe-2103");
+    }
+}