docs: add rollup join recipe for FX rates with mixed refresh cadences (#10906)

* docs: add rollup join recipe for FX rates with mixed refresh cadences

* docs: default refresh_key cadence to 1 hour in FX rates recipe

* docs: add sample base table data and switch refresh cadence to 1 day

* docs: refresh FX rates rollup hourly to match recipe narrative

* docs: add FX rates rollup join card to recipes home

* docs: generalize rollup join recipe to mixed refresh cadences pattern

* docs: update rollup_join warnings with Cube Store partition limits

* docs: remove unfinalized partition sizing details from rollup_join warnings

---------

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

docs-mintlify/docs.json

@@ -633,7 +633,8 @@
                   "recipes/pre-aggregations/disabling-pre-aggregations",
                   "recipes/pre-aggregations/using-originalsql-and-rollups-effectively",
                   "recipes/pre-aggregations/refreshing-select-partitions",
-                  "recipes/pre-aggregations/joining-multiple-data-sources"
+                  "recipes/pre-aggregations/joining-multiple-data-sources",
+                  "recipes/pre-aggregations/mixed-refresh-cadences-rollup-join"
                 ]
               },
               {

docs-mintlify/recipes/index.mdx

@@ -108,6 +108,9 @@ pre-aggregations, configuration, APIs, and AI.
   <Card title="Multiple data sources" icon="topology-ring-2" href="/recipes/pre-aggregations/joining-multiple-data-sources">
     Join data from different warehouses with cross-database rollup joins.
   </Card>
+  <Card title="Mixed refresh cadences" icon="clock-rotate-left" href="/recipes/pre-aggregations/mixed-refresh-cadences-rollup-join">
+    Combine a slow-changing fact rollup with a frequently-refreshed lookup rollup using a rollup join.
+  </Card>
 </CardGroup>
 
 ## Configuration