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

script/dex/AddLiquidityPMMPoolsChain138.s.sol

@@ -41,9 +41,8 @@ contract AddLiquidityPMMPoolsChain138 is Script {
         address usdt = integration.officialUSDT();
         address usdc = integration.officialUSDC();
 
-        // On Chain 138, DODOPMMIntegration may have been deployed with mainnet official USDT/USDC
-        // (0xdAC17F958D2ee523a2206206994597C13D831ec7, 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48).
-        // Those addresses have no code on 138, so skip cUSDT/USDT and cUSDC/USDC to avoid "call to non-contract".
+        // On Chain 138, cUSDT/USDT and cUSDC/USDC should point at live local mirror quote tokens.
+        // If the configured quote-side addresses have no code on 138, skip those pools to avoid "call to non-contract".
         bool skipOfficialPools = block.chainid == 138 && (
             !_isContract(usdt) || !_isContract(usdc)
         );