Initial account microservice

Account dashboard, newsletters, widget pages (tickets, bookings).
OAuth SSO client via shared blueprint — per-app first-party cookies.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

services/__init__.py

@@ -0,0 +1,27 @@
+"""Account app service registration."""
+from __future__ import annotations
+
+
+def register_domain_services() -> None:
+    """Register services for the account app.
+
+    Account needs all domain services since widgets (tickets, bookings)
+    pull data from blog, calendar, market, cart, and federation.
+    """
+    from shared.services.registry import services
+    from shared.services.federation_impl import SqlFederationService
+    from shared.services.blog_impl import SqlBlogService
+    from shared.services.calendar_impl import SqlCalendarService
+    from shared.services.market_impl import SqlMarketService
+    from shared.services.cart_impl import SqlCartService
+
+    if not services.has("federation"):
+        services.federation = SqlFederationService()
+    if not services.has("blog"):
+        services.blog = SqlBlogService()
+    if not services.has("calendar"):
+        services.calendar = SqlCalendarService()
+    if not services.has("market"):
+        services.market = SqlMarketService()
+    if not services.has("cart"):
+        services.cart = SqlCartService()