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

docs/components/chatmessages.mdx

@@ -0,0 +1,39 @@
+---
+title: "ChatMessages"
+---
+
+Chat completion message with role-based discrimination
+
+
+## Supported Types
+
+### `components.ChatAssistantMessage`
+
+```python
+value: components.ChatAssistantMessage = /* values here */
+```
+
+### `components.ChatDeveloperMessage`
+
+```python
+value: components.ChatDeveloperMessage = /* values here */
+```
+
+### `components.ChatSystemMessage`
+
+```python
+value: components.ChatSystemMessage = /* values here */
+```
+
+### `components.ChatToolMessage`
+
+```python
+value: components.ChatToolMessage = /* values here */
+```
+
+### `components.ChatUserMessage`
+
+```python
+value: components.ChatUserMessage = /* values here */
+```
+