feat: add standards wiki, MCP registry, and app template

templates/app/init.py

@@ -0,0 +1,51 @@
+"""# Summary
+
+Infrastructure initialization — connects MongoDB and wires all repos and services.
+Shared bootstrap for both the FastAPI app and the worker, guarded against
+repeated initialization via a module-level flag.
+"""
+from typing import Any, Dict
+
+from config import settings
+from domain.item.ports.db import create_item_repo
+from domain.item.ports.service import get_item_service
+from domain.job.ports.db import create_job_repo
+from domain.job.ports.service import get_job_service
+from infra.db.setup import setup_database, shutdown_database
+
+_resources: Dict[str, Any] = {}
+_initialized: bool = False
+
+
+async def init() -> Dict[str, Any]:
+    """Connect MongoDB, wire all repos and services, and return the resources dict.
+
+    Idempotent: repeated calls short-circuit and return the cached resources.
+
+    Returns:
+        Dict[str, Any]: Named services keyed by resource name.
+    """
+    global _resources, _initialized
+    if _initialized:
+        return _resources
+
+    await setup_database(uri=settings.mongo_uri, db_name=settings.mongo_db)
+
+    item_repo = create_item_repo()
+    job_repo = create_job_repo()
+
+    _resources["item_repo"] = item_repo
+    _resources["job_repo"] = job_repo
+    _resources["item_svc"] = get_item_service(item_repo)
+    _resources["job_svc"] = get_job_service(job_repo)
+
+    _initialized = True
+    return _resources
+
+
+async def shutdown() -> None:
+    """Disconnect MongoDB and reset the resources cache."""
+    global _initialized
+    await shutdown_database()
+    _resources.clear()
+    _initialized = False