Add tasks: the crew's shared to-do list

Bots and workspaces each keep a list of work tracked until it's done, and
the bots move it along themselves as they work.

- tasks (one collection per bot or per workspace), task_notes (the
  progress log) and task_media (a deliverable or a reference file, its
  bytes a private media row served at /media/private/<id>)
- statuses todo/doing/blocked/done/cancelled, with blocked_reason while
  only the user can unblock it
- visibility as SQL in src/utils/task-access: a user's own bots and
  workspaces, a run's own list plus its workspaces, everything for the
  coordinator; every tool and endpoint resolves through it
- list_tasks, create_task and update_task on every run, so a chat reply,
  a task and a routine all read the list, log progress and file what they
  produced
- TasksNote on every run and TaskReminderNote in chat, so a greeting or a
  proposed next step brings pending work up in one measured line
- tasks group on the workspace dashboard and a tasks modal in the
  conversation header, sharing one form, row and detail panel
- a bot's or workspace's own chat uploads are read before the delete so
  none are stranded; bot files keep their folder

Also corrects the README's RAM guidance and table alignment.

src/pages/admin/bots/[bot_id]/(hooks)/use-bot-tasks.ts

@@ -0,0 +1,55 @@
+import fetchApi from "@moduletrace/twui/utils/fetch/fetchApi";
+import type { APIResponseObject } from "@moduletrace/bunext/types";
+import { useCallback, useEffect, useState } from "react";
+import type { TaskWithNames } from "@/src/types";
+
+type Params = {
+    bot_id: number;
+    workspace_id?: number | null;
+    /**
+     * Load only once the modal opens, so the conversation's page props stay
+     * small.
+     */
+    enabled?: boolean;
+};
+
+/**
+ * A conversation's tasks: a bot's own list, or in a workspace the
+ * workspace's shared one. Loaded on open and refreshed after every change,
+ * never part of the page props.
+ */
+export default function useBotTasks({ bot_id, workspace_id, enabled = true }: Params) {
+    const [tasks, setTasks] = useState<TaskWithNames[]>([]);
+    const [loading, setLoading] = useState(false);
+    const [error, setError] = useState<string>();
+
+    const load = useCallback(async () => {
+        setLoading(true);
+        setError(undefined);
+
+        const query = new URLSearchParams();
+
+        if (workspace_id) query.set("workspace_id", String(workspace_id));
+        else query.set("bot_id", String(bot_id));
+
+        const res = await fetchApi<{}, APIResponseObject<TaskWithNames>>(
+            `/api/admin/tasks/list-tasks?${query.toString()}`,
+            { method: "GET" },
+        ).catch(() => null);
+
+        setLoading(false);
+
+        if (!res?.success) {
+            setError(res?.msg || `Couldn't load the tasks.`);
+            return;
+        }
+
+        setTasks(res.payload || []);
+    }, [bot_id, workspace_id]);
+
+    useEffect(() => {
+        if (enabled) load().catch(() => {});
+    }, [enabled, load]);
+
+    return { tasks, setTasks, loading, error, reload: load };
+}