Audit fix A13-2/p3: Document Deploy.sol constants

Add NatSpec to DEPLOYMENT_SUITE_TABLES and DEPLOYMENT_SUITE_CONTRACT
explaining expected env var values and default behavior.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: thedavidmeister

audit/2026-03-10-01/triage.md

@@ -54,4 +54,4 @@ duplicates in the title.
 | A11-4 | 2 | LOW | Log table tests have zero assertions -- they only call and log | PENDING |
 | A11-5 | 2 | LOW | No test verifies table data integrity against known log10 reference values | PENDING |
 | A11-6 | 2 | LOW | No test for `toBytes` encoding correctness (round-trip or spot-check) | PENDING |
-| A13-2/p3 | 3 | LOW | `Deploy.sol` constants are undocumented and inconsistently named | PENDING |
+| A13-2/p3 | 3 | LOW | `Deploy.sol` constants are undocumented and inconsistently named | FIXED |

script/Deploy.sol

@@ -8,7 +8,14 @@ import {LibDecimalFloatDeploy} from "../src/lib/deploy/LibDecimalFloatDeploy.sol
 import {LibRainDeploy} from "rain.deploy/lib/LibRainDeploy.sol";
 import {DecimalFloat} from "../src/concrete/DecimalFloat.sol";
 
+/// @dev Hash of the "log-tables" deployment suite string. When the
+/// `DEPLOYMENT_SUITE` env var is set to "log-tables", the script deploys the
+/// log/antilog lookup tables as a data contract.
 bytes32 constant DEPLOYMENT_SUITE_TABLES = keccak256("log-tables");
+
+/// @dev Hash of the "decimal-float" deployment suite string. When the
+/// `DEPLOYMENT_SUITE` env var is set to "decimal-float" (or omitted, as it is
+/// the default), the script deploys the DecimalFloat contract.
 bytes32 constant DEPLOYMENT_SUITE_CONTRACT = keccak256("decimal-float");
 
 contract Deploy is Script {