fix: make join review read only

harness/.pi/extensions/tht-gate.js

@@ -31,6 +31,7 @@ import {
 	buildMultiselectRequest,
 	buildArtifactGate,
 	buildSchemaLinkingRequest,
+	buildJoinReviewRequest,
 } from "./gate/builders.js";
 import {
 	validateCtePlanV2,
@@ -728,6 +729,9 @@ export default function (pi) {
 			const meritOptions = opts
 				.filter((o) => !isReserved(o.label))
 				.map((o) => ({ id: o.id, label: o.label }));
+			const joinOnly = meritOptions.length > 0 && opts
+				.filter((o) => !isReserved(o.label))
+				.every((o) => o.decision.type === "join_modified");
 			if (shouldSkipEmptyDecide({ meritCount: meritOptions.length, allowEmpty: params.allow_empty ?? false, advance })) {
 				await ctx.ui.notify(
 					"Nessuna memory riutilizzabile per questa domanda — passo alla fase successiva.",
@@ -738,14 +742,28 @@ export default function (pi) {
 					"Fase memoria vuota: nessuna decisione da registrare, avanzamento automatico alla fase successiva.",
 				);
 			}
-			const widget = buildMultiselectRequest({
-				id: `u${Date.now()}`,
-				phase,
-				title: phase === "F2" ? memorySelectionWidgetProps(opts).title : title,
-				allowEmpty: params.allow_empty ?? false,
-				options: meritOptions,
-				...(phase === "F2" ? memorySelectionWidgetProps(opts) : {}),
-			});
+			const widget = joinOnly
+				? buildJoinReviewRequest({
+					id: `u${Date.now()}`,
+					phase,
+					title,
+					options: opts
+						.filter((o) => !isReserved(o.label))
+						.map((o) => ({
+							id: o.id,
+							label: o.label,
+							detail: o.decision.detail ?? "",
+							rationale: o.decision.rationale ?? "",
+						})),
+				})
+				: buildMultiselectRequest({
+					id: `u${Date.now()}`,
+					phase,
+					title: phase === "F2" ? memorySelectionWidgetProps(opts).title : title,
+					allowEmpty: params.allow_empty ?? false,
+					options: meritOptions,
+					...(phase === "F2" ? memorySelectionWidgetProps(opts) : {}),
+				});
 			const resp = await emitAndWait(ctx, widget);
 			if (resp.control === "freetext") {
 				return textResult(
@@ -756,7 +774,9 @@ export default function (pi) {
 				return textResult("Il reviewer vuole tornare indietro.");
 			if (resp.control === "exit")
 				return textResult("Il reviewer vuole uscire.");
-			const chosen = opts.filter((o) => (resp.choices ?? []).includes(o.id));
+			const chosen = joinOnly
+				? opts.filter((o) => !isReserved(o.label))
+				: opts.filter((o) => (resp.choices ?? []).includes(o.id));
 			for (const c of chosen) {
 				const d = c.decision;
 				const err = relayIfThtFails(ctx, decisionAddArgs(session, d), "");