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Domain isolation: typed contracts, service registry, and composable wiring

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Add typed service contracts (Protocols + frozen DTOs) in shared/contracts/
for cross-domain communication. Each domain exposes a service interface
(BlogService, CalendarService, MarketService, CartService) backed by SQL
implementations in shared/services/. A singleton registry with has() guards
enables composable startup — apps register their own domain service and
stubs for absent domains.

Absorbs glue layer: navigation, relationships, event handlers (login,
container, order) now live in shared/ with has()-guarded service calls.
Factory gains domain_services_fn parameter for per-app service registration.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-02-19 04:29:10 +00:00
parent ea7dc9723a
commit 70b1c7de10
19 changed files with 1375 additions and 5 deletions
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5
services/__init__.py Normal file
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"""Domain service implementations and registry."""
from .registry import services
__all__ = ["services"]