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

docs/components/imagegenerationrequestaspectratio.mdx

@@ -0,0 +1,42 @@
+---
+title: "ImageGenerationRequestAspectRatio"
+---
+
+Normalized aspect ratio of the generated image. Providers clamp to their supported subset.
+
+## Example Usage
+
+```python
+from openrouter.components import ImageGenerationRequestAspectRatio
+
+# Open enum: unrecognized values are captured as UnrecognizedStr
+value: ImageGenerationRequestAspectRatio = "1:1"
+```
+
+
+## Values
+
+This is an open enum. Unrecognized values will not fail type checks.
+
+- `"1:1"`
+- `"1:2"`
+- `"1:4"`
+- `"1:8"`
+- `"2:1"`
+- `"2:3"`
+- `"3:2"`
+- `"3:4"`
+- `"4:1"`
+- `"4:3"`
+- `"4:5"`
+- `"5:4"`
+- `"8:1"`
+- `"9:16"`
+- `"16:9"`
+- `"9:19.5"`
+- `"19.5:9"`
+- `"9:20"`
+- `"20:9"`
+- `"9:21"`
+- `"21:9"`
+- `"auto"`