feat: email provider, admin password reset, portal new-patient, chat pill

Chat: history pill now shows a History icon + a Start-new-chat (SquarePen)
button; removed the duplicate chat-history list from the sidebar.

Email: deployment-wide email provider config (Resend/Postmark/SendGrid/SMTP) in
Settings → Developers, with encrypted API key and a Send-test action. sendEmail
dispatches via the chosen provider (REST via fetch; SMTP via nodemailer).

Forgot password with no provider: alert the clinic admin(s) via a "System"
message card in Messages + a bell notification (seeded system user + per-clinic
System conversation); clicking deep-links to /settings?tab=careTeam&member=<id>.
Admins can set a member's password directly from the employee dialog
(PATCH /api/staff/:id/password via Better Auth's internal context — no admin
plugin needed).

Patient Portal: "New patient" booking path registers a demographics-only patient
then books; bookings reject double-booked slots (409).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/components/sidebar-02/app-sidebar.tsx

@@ -21,7 +21,6 @@ import Image from "next/image";
 import { useTranslation } from "react-i18next";
 import type { Route } from "./nav-main";
 import DashboardNavigation from "@/components/sidebar-02/nav-main";
-import { NavChatHistory } from "@/components/sidebar-02/nav-chat-history";
 import { NotificationsPopover } from "@/components/sidebar-02/nav-notifications";
 import { NavUser } from "@/components/sidebar-02/nav-user";
 import { useCallInvites } from "@/components/meetings/use-call-invites";
@@ -103,7 +102,6 @@ export function DashboardSidebar() {
       </SidebarHeader>
       <SidebarContent className="gap-4 px-2 py-4">
         <DashboardNavigation routes={dashboardRoutes} />
-        {aiAllowed && <NavChatHistory />}
       </SidebarContent>
       <SidebarFooter className="p-2">
         <NavUser />

frontend/components/sidebar-02/nav-chat-history.tsx

@@ -1,82 +0,0 @@
-"use client";
-
-import { Trash2 } from "lucide-react";
-import Link from "next/link";
-import { usePathname, useSearchParams } from "next/navigation";
-import { type MouseEvent, useEffect, useState } from "react";
-import { useTranslation } from "react-i18next";
-
-import { useSidebar } from "@/components/ui/sidebar";
-import {
-  deleteThread,
-  listThreads,
-  THREADS_CHANGED_EVENT,
-  type ThreadSummary,
-} from "@/lib/ai-chat-history";
-import { cn } from "@/lib/utils";
-
-// Claude-style list of saved AI chats in the sidebar. Refreshes when a chat is
-// saved/deleted (via the THREADS_CHANGED_EVENT). Hidden when collapsed or empty.
-export function NavChatHistory() {
-  const { t } = useTranslation();
-  const { state } = useSidebar();
-  const pathname = usePathname();
-  const searchParams = useSearchParams();
-  const activeThread = searchParams.get("thread");
-  const [threads, setThreads] = useState<ThreadSummary[]>([]);
-
-  useEffect(() => {
-    const refresh = () => {
-      listThreads()
-        .then(setThreads)
-        .catch(() => {
-          /* not signed in / no clinic — just show nothing */
-        });
-    };
-    refresh();
-    window.addEventListener(THREADS_CHANGED_EVENT, refresh);
-    return () => window.removeEventListener(THREADS_CHANGED_EVENT, refresh);
-  }, []);
-
-  if (state === "collapsed" || threads.length === 0) return null;
-
-  const remove = async (event: MouseEvent, id: string) => {
-    event.preventDefault();
-    event.stopPropagation();
-    setThreads((prev) => prev.filter((x) => x.id !== id));
-    await deleteThread(id).catch(() => {
-      /* ignore */
-    });
-  };
-
-  return (
-    <div className="flex flex-col gap-0.5 px-2">
-      <span className="px-2 py-1 font-medium text-muted-foreground text-xs">
-        {t("chat.history.title")}
-      </span>
-      {threads.map((thread) => {
-        const active = pathname === "/" && activeThread === thread.id;
-        return (
-          <Link
-            className={cn(
-              "group flex items-center gap-2 rounded-md px-2 py-1.5 text-sm transition-colors hover:bg-accent",
-              active ? "bg-accent text-foreground" : "text-muted-foreground",
-            )}
-            href={`/?thread=${thread.id}`}
-            key={thread.id}
-          >
-            <span className="min-w-0 flex-1 truncate">{thread.title}</span>
-            <button
-              aria-label={t("chat.history.delete")}
-              className="shrink-0 opacity-0 transition-opacity hover:text-foreground group-hover:opacity-100"
-              onClick={(event) => remove(event, thread.id)}
-              type="button"
-            >
-              <Trash2 className="size-3.5" />
-            </button>
-          </Link>
-        );
-      })}
-    </div>
-  );
-}