Add independent roast plan cloning from the plans table

server/app.js

@@ -1,3 +1,4 @@
+import { blankPlan } from "../shared/fields.js";
 import { sanitizeObservations } from "../shared/roast-comparison.js";
 import express from "express";
 import path from "node:path";
@@ -790,6 +791,21 @@ export function createApp({
             res.json({ok:true,plan:row});
         } catch(error) {next(error);}
     });
+	app.post("/api/plans/:id/clone", requireAuth, csrf, requireUuidParam("id"), async (req, res, next) => {
+		try {
+			const source = (await db.query("SELECT plan,name FROM roast_plans WHERE id=$1 AND user_id=$2", [req.params.id, req.user.id])).rows[0];
+			if (!source) return res.status(404).json({ok:false, code:"not_found"});
+			const plan = structuredClone(source.plan);
+			const defaults = blankPlan();
+			plan.planActual = defaults.planActual;
+			plan.afterRoast = defaults.afterRoast;
+			plan.inventory = {...defaults.inventory, ...plan.inventory, consumed:null};
+			const title = source.name || plan.fields?.["0.1"] || "Untitled plan";
+			const name = `${title.slice(0, 113)} (copy)`;
+			const copy = (await db.query("INSERT INTO roast_plans(user_id,plan,name) VALUES($1,$2,$3) RETURNING id,plan,name,created_at,updated_at", [req.user.id, plan, name])).rows[0];
+			res.status(201).json({ok:true, plan:copy});
+		} catch (error) { next(error); }
+	});
 	app.post("/api/plans", requireAuth, csrf, async (req, res, next) => {
 		try {
 			if (!req.body.plan || typeof req.body.plan !== "object")