feat: restore operator WIP — PMM JSON sync entrypoint, dotenv RPC trim + secrets, pool env alignment

- Resolve stash: merge load_deployment_env path with secure-secrets and CR/LF RPC strip
- create-pmm-full-mesh-chain138.sh delegates to sync-chain138-pmm-pools-from-json.sh
- env.additions.example: canonical PMM pool defaults (cUSDT/USDT per crosscheck)
- Include Chain138 scripts, official mirror deploy scaffolding, and prior staged changes

Made-with: Cursor

foundry.toml

@@ -10,6 +10,9 @@ optimizer = true
 optimizer_runs = 200
 via_ir = true
 evm_version = "london"
+fs_permissions = [
+    { access = "read", path = "./config" }
+]
 remappings = [
     "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
     "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
@@ -55,4 +58,3 @@ arbitrum = { key = "${ARBISCAN_API_KEY:-${ETHERSCAN_API_KEY}}", url = "https://a
 # Cronos mainnet (chain 25). Etherscan-style API; chainid required for v2.
 # API key from explorer.cronos.org/register (CRONOSCAN_API_KEY)
 cronos = { key = "${CRONOSCAN_API_KEY:-${ETHERSCAN_API_KEY}}", url = "https://explorer-api.cronos.org/mainnet/api?chainid=25" }
-