docs(standards): mirror doc-forge wiki style; mermaid + copyable build prompt

- move templates into src/templates; renumber wiki pages; add app-components page

- embed agentic build prompt as a copyable markdown block; add mermaid diagrams

- build.py writes <name>/mcp; config static bundle -> standards/mcp

- registry reads libraries.json as bytes (committed file was UTF-16LE); normalize to UTF-8

- Dockerfile: drop stale blog copy; per-repo <name>/mcp copies

- drop nested standards/mcp/standards duplicate and empty root mcp/

standards/src/templates/app/interfaces/item/routes.py

@@ -0,0 +1,42 @@
+"""# Summary
+
+Item route handlers — names must match openapi.yaml operationIds.
+"""
+from fastapi import Request
+from fastapi.responses import JSONResponse
+
+from domain.item.models import Item
+
+
+def svc(request: Request):
+    """Resolve the item CRUD service from app state."""
+    return request.app.state.db_resources["item_svc"]
+
+
+async def create_item(request: Request, body: dict):
+    """Create an item from the request body."""
+    data = body.model_dump() if hasattr(body, "model_dump") else dict(body)
+    doc = await svc(request).create(Item(**data))
+    return JSONResponse(status_code=201, content=doc.model_dump(mode="json", by_alias=True))
+
+
+async def get_item(request: Request, id: str):
+    """Fetch one item by id."""
+    doc = await svc(request).read(id)
+    if doc is None:
+        return JSONResponse(status_code=404, content={"detail": "item not found"})
+    return doc.model_dump(mode="json", by_alias=True)
+
+
+async def list_items(request: Request):
+    """List all items."""
+    docs = await svc(request).search({})
+    return [d.model_dump(mode="json", by_alias=True) for d in docs]
+
+
+async def delete_item(request: Request, id: str):
+    """Delete one item by id."""
+    ok = await svc(request).delete(id)
+    if not ok:
+        return JSONResponse(status_code=404, content={"detail": "item not found"})
+    return {"deleted": True}