feat(site): Add deployment-wide DAU chart (#5810)

docs/api/insights.md

@@ -0,0 +1,37 @@
+# Insights
+
+## Get deployment DAUs
+
+### Code samples
+
+```shell
+# Example request using curl
+curl -X GET http://coder-server:8080/api/v2/insights/daus \
+  -H 'Accept: application/json' \
+  -H 'Coder-Session-Token: API_KEY'
+```
+
+`GET /insights/daus`
+
+### Example responses
+
+> 200 Response
+
+```json
+{
+  "entries": [
+    {
+      "amount": 0,
+      "date": "2019-08-24T14:15:22Z"
+    }
+  ]
+}
+```
+
+### Responses
+
+| Status | Meaning                                                 | Description | Schema                                                                       |
+| ------ | ------------------------------------------------------- | ----------- | ---------------------------------------------------------------------------- |
+| 200    | [OK](https://tools.ietf.org/html/rfc7231#section-6.3.1) | OK          | [codersdk.DeploymentDAUsResponse](schemas.md#codersdkdeploymentdausresponse) |
+
+To perform this operation, you must be authenticated. [Learn more](authentication.md).

docs/api/schemas.md

@@ -2385,6 +2385,25 @@ CreateParameterRequest is a structure used to create a new parameter value for a
 | `usage`      | string  | false    |              |             |
 | `value`      | integer | false    |              |             |
 
+## codersdk.DeploymentDAUsResponse
+
+```json
+{
+  "entries": [
+    {
+      "amount": 0,
+      "date": "2019-08-24T14:15:22Z"
+    }
+  ]
+}
+```
+
+### Properties
+
+| Name      | Type                                            | Required | Restrictions | Description |
+| --------- | ----------------------------------------------- | -------- | ------------ | ----------- |
+| `entries` | array of [codersdk.DAUEntry](#codersdkdauentry) | false    |              |             |
+
 ## codersdk.Entitlement
 
 ```json