Run script/setup in new worktrees and give each task a port block

web/dist/task.js

@@ -848,6 +848,16 @@ function renderEvent(ev, ctx) {
         }
         case "task.merge_title":
             return h("div", { class: "note" }, `${ev.actor} set the merge commit title to "${String(p["merge_title"])}" `, when);
+        case "setup.started": {
+            const base = Number(p["port_base"]);
+            return h("div", { class: "note" }, `running ${String(p["script"])} with ports ${base}–${base + 9} `, when);
+        }
+        case "setup.ended": {
+            const secs = Math.round(Number(p["duration_ms"]) / 1000);
+            const failed = typeof p["error"] === "string";
+            const summary = failed ? `${String(p["script"])} failed after ${secs}s: ${String(p["error"])}` : `${String(p["script"])} finished in ${secs}s`;
+            return h("details", { class: failed ? "note error" : "note" }, h("summary", {}, summary, " ", when), h("pre", {}, String(p["output"] ?? "")));
+        }
         case "task.merged":
             return h("div", { class: "note" }, `${ev.actor} merged the task${p["commit"] ? ` as ${String(p["commit"]).slice(0, 7)}` : ""}${p["pushed"] ? ` and pushed it to ${String(p["pushed"])}` : ""} `, when);
         case "task.discarded":

web/src/api.gen.ts

@@ -774,6 +774,8 @@ export interface components {
             branch: string;
             worktree_path: string;
             base_ref: string;
+            /** @description The first of the task's block of ports (port_base to port_base+9), passed to its setup script and agent as PORT. */
+            port_base: number;
             /** @enum {string} */
             status: "active" | "merged" | "discarded";
             created_by: string;

web/src/task.ts

@@ -1008,6 +1008,18 @@ function renderEvent(ev: ByreEvent, ctx: Ctx): HTMLElement | null {
     case "task.merge_title":
       return h("div", { class: "note" }, `${ev.actor} set the merge commit title to "${String(p["merge_title"])}" `, when);
 
+    case "setup.started": {
+      const base = Number(p["port_base"]);
+      return h("div", { class: "note" }, `running ${String(p["script"])} with ports ${base}–${base + 9} `, when);
+    }
+
+    case "setup.ended": {
+      const secs = Math.round(Number(p["duration_ms"]) / 1000);
+      const failed = typeof p["error"] === "string";
+      const summary = failed ? `${String(p["script"])} failed after ${secs}s: ${String(p["error"])}` : `${String(p["script"])} finished in ${secs}s`;
+      return h("details", { class: failed ? "note error" : "note" }, h("summary", {}, summary, " ", when), h("pre", {}, String(p["output"] ?? "")));
+    }
+
     case "task.merged":
       return h(
         "div",