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

docs/components/chatcontentitems.mdx

@@ -0,0 +1,45 @@
+---
+title: "ChatContentItems"
+---
+
+Content part for chat completion messages
+
+
+## Supported Types
+
+### `components.ChatContentFile`
+
+```python
+value: components.ChatContentFile = /* values here */
+```
+
+### `components.ChatContentImage`
+
+```python
+value: components.ChatContentImage = /* values here */
+```
+
+### `components.ChatContentAudio`
+
+```python
+value: components.ChatContentAudio = /* values here */
+```
+
+### `components.LegacyChatContentVideo`
+
+```python
+value: components.LegacyChatContentVideo = /* values here */
+```
+
+### `components.ChatContentText`
+
+```python
+value: components.ChatContentText = /* values here */
+```
+
+### `components.ChatContentVideo`
+
+```python
+value: components.ChatContentVideo = /* values here */
+```
+