refactor(db): replace sqlc with handwritten pgx repos

- Finish Paddle-to-Stripe billing migration; drop paddle/stripe libs
- Renumber migrations; add 00012 memberships+manage_token,
  00013 location_type_capacity
- Add tests: admin, auth, bookings customer service
- Remove graphify-out artifacts and stale env files

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

apps/frontend/src/routes/dashboard/settings-page.tsx

@@ -1,4 +1,4 @@
-import { Show, createSignal } from "solid-js";
+import { Show, createEffect, createResource, createSignal } from "solid-js";
 import { apiClient } from "../../lib/api-client";
 import { Input } from "../../components/ui/input";
 import { Textarea } from "../../components/ui/textarea";
@@ -16,6 +16,26 @@ function SettingsPage() {
   const [emailBody, setEmailBody] = createSignal("");
   const [emailSaving, setEmailSaving] = createSignal(false);
 
+  const [emailTemplates, { refetch: refetchTemplates }] = createResource(
+    () => data.token(),
+    async (bearer) => {
+      if (!bearer || bearer.startsWith("demo.")) return [];
+      try {
+        const response = await (apiClient as any).GET("/v1/tenants/email-templates", { headers: { Authorization: `Bearer ${bearer}` } });
+        return (response.data?.templates as any[]) ?? [];
+      } catch {
+        return [];
+      }
+    },
+  );
+
+  // Prefill the editor from the stored template whenever the type changes.
+  createEffect(() => {
+    const tpl = (emailTemplates() ?? []).find((t: any) => t.type === activeEmailType());
+    setEmailSubject(tpl?.subject ?? "");
+    setEmailBody(tpl?.bodyText ?? tpl?.bodyHtml ?? "");
+  });
+
   const presetColors = [
     { name: data.i18n.locale() === "cs" ? "Hnědá" : "Terracotta", color: "#c25e3a" },
     { name: data.i18n.locale() === "cs" ? "Zelená" : "Sage", color: "#5a7c5a" },
@@ -68,7 +88,7 @@ function SettingsPage() {
                 <div class="w-10 h-10 rounded-full flex items-center justify-center text-canvas font-bold" style={{ background: brandColor() }}>B</div>
                 <div>
                   <p class="font-semibold text-ink">Bookra</p>
-                  <p class="text-xs text-ink-muted">{data.i18n.locale() === "cs" ? "Rezervujte si termin" : "Book an appointment"}</p>
+                  <p class="text-xs text-ink-muted">{data.i18n.locale() === "cs" ? "Rezervujte si termín" : "Book an appointment"}</p>
                 </div>
               </div>
               <button class="w-full py-2.5 rounded-lg text-canvas font-medium text-sm" style={{ background: brandColor() }}>{data.i18n.locale() === "cs" ? "Rezervovat" : "Book Now"}</button>
@@ -109,7 +129,8 @@ function SettingsPage() {
             if (!bearer || bearer.startsWith("demo.")) { data.setDemoNotice(data.i18n.locale() === "cs" ? "V demo režimu nelze ukládat." : "Cannot save in demo mode."); return; }
             setEmailSaving(true);
             try {
-              await (apiClient as any).PUT("/v1/tenants/email-template", { headers: { Authorization: `Bearer ${bearer}` }, body: { type: activeEmailType(), subject: emailSubject(), body: emailBody() } });
+              await (apiClient as any).PUT("/v1/tenants/email-template", { headers: { Authorization: `Bearer ${bearer}` }, body: { type: activeEmailType(), subject: emailSubject(), body: emailBody(), isEnabled: true } });
+              void refetchTemplates();
               data.setDemoNotice(data.i18n.locale() === "cs" ? "Šablona uložena." : "Template saved.");
             } catch { data.setDemoNotice(data.i18n.locale() === "cs" ? "Chyba při ukládání." : "Save failed."); }
             finally { setEmailSaving(false); }