docs: Mintlify MDX docs + docs.json; bump Speakeasy to 1.787.0 (#382)

docs/components/rankingsdailymetaversion.mdx

@@ -0,0 +1,17 @@
+---
+title: "RankingsDailyMetaVersion"
+---
+
+Dataset version. Field names and grain are stable for the life of `v1`.
+
+## Example Usage
+
+```python
+from openrouter.components import RankingsDailyMetaVersion
+value: RankingsDailyMetaVersion = "v1"
+```
+
+
+## Values
+
+- `"v1"`