Time unification

inventory-server/src/utils/db.js

@@ -5,7 +5,13 @@ const { Pool } = pg;
 let pool;
 
 export function initPool(config) {
-  pool = new Pool(config);
+  pool = new Pool({
+    // Pin the session timezone to business time (matches the
+    // `ALTER DATABASE inventory_db SET timezone = 'America/Chicago'` default)
+    // so a DB restore/migration can't silently revert date semantics.
+    options: '-c TimeZone=America/Chicago',
+    ...config,
+  });
   return pool;
 }
 

inventory-server/src/utils/dbConnection.js

@@ -97,7 +97,10 @@ async function setupSshTunnel() {
     password: process.env.PROD_DB_PASSWORD,
     database: process.env.PROD_DB_NAME,
     port: Number(process.env.PROD_DB_PORT) || 3306,
-    timezone: 'Z',
+    // DATETIME columns store Central wall-clock literals — return them as
+    // strings; parse with shared/business-time parseMySql() if instants are
+    // ever needed (see docs/TIME.md).
+    dateStrings: true,
   };
 
   return new Promise((resolve, reject) => {