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

docs/operations/window.mdx

@@ -0,0 +1,17 @@
+---
+title: "Window"
+---
+
+Trailing time window for the classification data. Currently only `7d` (trailing 7 days) is supported.
+
+## Example Usage
+
+```python
+from openrouter.operations import Window
+value: Window = "7d"
+```
+
+
+## Values
+
+- `"7d"`