Phase 6: sync jobs, inquiry and order forms

- Sync scheduler in the content service with a per-job cache (sync_cache),
  sync_runs reporting and Healthchecks pings. Jobs: Archidekt, BoardGameGeek,
  cover art (Open Library, TMDB, AniList), Suwayomi and Kavita reading
  progress, Bambuddy filament and Homebox material stock. A note's own value
  always wins over a synced one.
- PersonalReader: updates only Library notes with a matching anilistId,
  changes to Greg's notes are held for review; Reading series with no note
  show as suggestions on the admin Overview.
- /api/inquiries and /api/orders: Turnstile, rate limits, a saved copy in the
  content service (intake token) plus email over SMTP. Orders are re-checked
  against the live notes: accepted only when the category's ordersOpen is
  true and the line has capacity.
- Admin Inbox for saved submissions. Options' inStock is optional so synced
  stock can fill it. All settings from process.env; .env.example per service.
- Sources could not be reached from the build environment; parsers are tested
  against fixtures labelled as not live.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aSbo2D1qP8cMFQCykf7kx

services/admin/src/layout.ts

@@ -9,6 +9,7 @@ export interface Flash {
 const nav: [string, string][] = [
   ["/", "Overview"],
   ["/review", "Review"],
+  ["/inbox", "Inbox"],
   ["/notes", "Notes"],
   ["/drafts", "Drafts"],
   ["/capture", "Capture"],
@@ -16,7 +17,7 @@ const nav: [string, string][] = [
   ["/problems", "Problems"],
 ];
 
-export function layout(p: { title: string; path: string; held: number; flash?: Flash; body: Html }): Html {
+export function layout(p: { title: string; path: string; held: number; inbox?: number; flash?: Flash; body: Html }): Html {
   const current = (href: string) => (href === "/" ? p.path === "/" : p.path.startsWith(href));
   return html`<!doctype html>
 <html lang="en">
@@ -34,7 +35,7 @@ export function layout(p: { title: string; path: string; held: number; flash?: F
   <a class="brand" href="/">GregKilmer.com admin</a>
   <nav>${nav.map(
     ([href, label]) =>
-      html`<a href="${href}" ${current(href) ? html`aria-current="page"` : ""}>${label}${href === "/review" && p.held ? html`<span class="count">${p.held}</span>` : ""}</a>`,
+      html`<a href="${href}" ${current(href) ? html`aria-current="page"` : ""}>${label}${href === "/review" && p.held ? html`<span class="count">${p.held}</span>` : ""}${href === "/inbox" && p.inbox ? html`<span class="count">${p.inbox}</span>` : ""}</a>`,
   )}</nav>
 </header>
 <main>