feat: pass actor slug to all task updates (system messages show who did it)

src/components/KanbanBoard.tsx

@@ -1,7 +1,7 @@
 
 import { useEffect, useState } from "react";
 import type { Task } from "@/lib/api";
-import { getTasks, updateTask } from "@/lib/api";
+import { getTasks, updateTask, getCurrentSlug } from "@/lib/api";
 import TaskModal from "@/components/TaskModal";
 import CreateTaskModal from "@/components/CreateTaskModal";
 import { wsClient } from "@/lib/ws";
@@ -80,12 +80,12 @@ export default function KanbanBoard({ projectId, projectSlug }: Props) {
     if (!task || task.status === status) return;
     setTasks((prev) => prev.map((t) => (t.id === draggedTask ? { ...t, status } : t)));
     setDraggedTask(null);
-    try { await updateTask(draggedTask, { status }); } catch { loadTasks(); }
+    try { await updateTask(draggedTask, { status }, getCurrentSlug()); } catch { loadTasks(); }
   };
 
   const handleMoveTask = async (taskId: string, newStatus: string) => {
     setTasks((prev) => prev.map((t) => (t.id === taskId ? { ...t, status: newStatus } : t)));
-    try { await updateTask(taskId, { status: newStatus }); } catch { loadTasks(); }
+    try { await updateTask(taskId, { status: newStatus }, getCurrentSlug()); } catch { loadTasks(); }
   };
 
   if (loading) {

src/components/TaskModal.tsx

@@ -2,7 +2,7 @@
 import { useEffect, useState } from "react";
 import type { Task, Member, Step, Message } from "@/lib/api";
 import {
-  updateTask, deleteTask, getMembers,
+  updateTask, deleteTask, getMembers, getCurrentSlug,
   getSteps, createStep, updateStep, deleteStep as _deleteStepApi,
   getMessages, sendMessage,
 } from "@/lib/api";
@@ -62,7 +62,7 @@ export default function TaskModal({ task, projectId: _projectId, projectSlug: _p
   const save = async (patch: Partial<Task>) => {
     setSaving(true);
     try {
-      const updated = await updateTask(task.id, patch);
+      const updated = await updateTask(task.id, patch, getCurrentSlug());
       onUpdated(updated);
     } catch (e) {
       console.error(e);

src/lib/api.ts

@@ -9,6 +9,17 @@ function getToken(): string | null {
   return localStorage.getItem("tb_token");
 }
 
+export function getCurrentSlug(): string {
+  const token = getToken();
+  if (!token) return "unknown";
+  try {
+    const payload = JSON.parse(atob(token.split(".")[1]));
+    return payload.slug || payload.sub || "unknown";
+  } catch {
+    return "unknown";
+  }
+}
+
 async function request<T = any>(path: string, options: RequestInit = {}): Promise<T> {
   const token = getToken();
   const headers: Record<string, string> = {
@@ -165,8 +176,9 @@ export async function createTask(projectSlug: string, data: Partial<Task>): Prom
   });
 }
 
-export async function updateTask(taskId: string, data: Partial<Task>): Promise<Task> {
-  return request(`/api/v1/tasks/${taskId}`, { method: "PATCH", body: JSON.stringify(data) });
+export async function updateTask(taskId: string, data: Partial<Task>, actor?: string): Promise<Task> {
+  const qs = actor ? `?actor=${encodeURIComponent(actor)}` : "";
+  return request(`/api/v1/tasks/${taskId}${qs}`, { method: "PATCH", body: JSON.stringify(data) });
 }
 
 export async function deleteTask(taskId: string): Promise<void> {