fix(docs): redirect enterprise overview to architecture (#4823)

The removed Enterprise landing page left the `/enterprise` and
`/enterprise/deployment` redirects pointing at a missing page, breaking
the SDK documentation-link test. Point both redirects at the existing
architecture overview, which describes Embedded and Enterprise.

The exact failing Rust test fails on current main and passes with these
redirect changes. This repairs the inherited failure blocking #4821.

docs/web/docs.json

@@ -41,7 +41,7 @@
     },
     {
       "source": "/enterprise",
-      "destination": "/enterprise/index"
+      "destination": "/#architecture"
     },
     {
       "source": "/enterprise/intelligent-scheduling",
@@ -89,7 +89,7 @@
     },
     {
       "source": "/enterprise/deployment",
-      "destination": "/enterprise/index#deployment-and-governance"
+      "destination": "/#architecture"
     },
     {
       "source": "/feature-engineering/data-evolution",