feat(coderd): return agent script timings (#14923)

Add the agent script timings into the
`/workspacebuilds/:workspacebuild/timings` response.

Close https://github.com/coder/coder/issues/14876

coderd/apidoc/swagger.json

@@ -6609,6 +6609,37 @@
 				}
 			}
 		},
+		"/workspacebuilds/{workspacebuild}/timings": {
+			"get": {
+				"security": [
+					{
+						"CoderSessionToken": []
+					}
+				],
+				"produces": ["application/json"],
+				"tags": ["Builds"],
+				"summary": "Get workspace build timings by ID",
+				"operationId": "get-workspace-build-timings-by-id",
+				"parameters": [
+					{
+						"type": "string",
+						"format": "uuid",
+						"description": "Workspace build ID",
+						"name": "workspacebuild",
+						"in": "path",
+						"required": true
+					}
+				],
+				"responses": {
+					"200": {
+						"description": "OK",
+						"schema": {
+							"$ref": "#/definitions/codersdk.WorkspaceBuildTimings"
+						}
+					}
+				}
+			}
+		},
 		"/workspaceproxies": {
 			"get": {
 				"security": [
@@ -7524,7 +7555,7 @@
 					"200": {
 						"description": "OK",
 						"schema": {
-							"$ref": "#/definitions/codersdk.WorkspaceTimings"
+							"$ref": "#/definitions/codersdk.WorkspaceBuildTimings"
 						}
 					}
 				}
@@ -7922,6 +7953,31 @@
 				}
 			}
 		},
+		"codersdk.AgentScriptTiming": {
+			"type": "object",
+			"properties": {
+				"display_name": {
+					"type": "string"
+				},
+				"ended_at": {
+					"type": "string",
+					"format": "date-time"
+				},
+				"exit_code": {
+					"type": "integer"
+				},
+				"stage": {
+					"type": "string"
+				},
+				"started_at": {
+					"type": "string",
+					"format": "date-time"
+				},
+				"status": {
+					"type": "string"
+				}
+			}
+		},
 		"codersdk.AgentSubsystem": {
 			"type": "string",
 			"enum": ["envbox", "envbuilder", "exectrace"],
@@ -13359,6 +13415,23 @@
 				}
 			}
 		},
+		"codersdk.WorkspaceBuildTimings": {
+			"type": "object",
+			"properties": {
+				"agent_script_timings": {
+					"type": "array",
+					"items": {
+						"$ref": "#/definitions/codersdk.AgentScriptTiming"
+					}
+				},
+				"provisioner_timings": {
+					"type": "array",
+					"items": {
+						"$ref": "#/definitions/codersdk.ProvisionerTiming"
+					}
+				}
+			}
+		},
 		"codersdk.WorkspaceConnectionLatencyMS": {
 			"type": "object",
 			"properties": {
@@ -13598,17 +13671,6 @@
 				"WorkspaceStatusDeleted"
 			]
 		},
-		"codersdk.WorkspaceTimings": {
-			"type": "object",
-			"properties": {
-				"provisioner_timings": {
-					"type": "array",
-					"items": {
-						"$ref": "#/definitions/codersdk.ProvisionerTiming"
-					}
-				}
-			}
-		},
 		"codersdk.WorkspaceTransition": {
 			"type": "string",
 			"enum": ["start", "stop", "delete"],