feat: add endpoint for fetching workspace proxy keys (#14789)

coderd/apidoc/swagger.json

@@ -6668,6 +6668,30 @@
 				}
 			}
 		},
+		"/workspaceproxies/me/crypto-keys": {
+			"get": {
+				"security": [
+					{
+						"CoderSessionToken": []
+					}
+				],
+				"produces": ["application/json"],
+				"tags": ["Enterprise"],
+				"summary": "Get workspace proxy crypto keys",
+				"operationId": "get-workspace-proxy-crypto-keys",
+				"responses": {
+					"200": {
+						"description": "OK",
+						"schema": {
+							"$ref": "#/definitions/wsproxysdk.CryptoKeysResponse"
+						}
+					}
+				},
+				"x-apidocgen": {
+					"skip": true
+				}
+			}
+		},
 		"/workspaceproxies/me/deregister": {
 			"post": {
 				"security": [
@@ -14590,6 +14614,46 @@
 				}
 			}
 		},
+		"wsproxysdk.CryptoKey": {
+			"type": "object",
+			"properties": {
+				"deletes_at": {
+					"type": "string"
+				},
+				"feature": {
+					"$ref": "#/definitions/wsproxysdk.CryptoKeyFeature"
+				},
+				"secret": {
+					"type": "string"
+				},
+				"sequence": {
+					"type": "integer"
+				},
+				"starts_at": {
+					"type": "string"
+				}
+			}
+		},
+		"wsproxysdk.CryptoKeyFeature": {
+			"type": "string",
+			"enum": ["workspace_apps", "oidc_convert", "tailnet_resume"],
+			"x-enum-varnames": [
+				"CryptoKeyFeatureWorkspaceApp",
+				"CryptoKeyFeatureOIDCConvert",
+				"CryptoKeyFeatureTailnetResume"
+			]
+		},
+		"wsproxysdk.CryptoKeysResponse": {
+			"type": "object",
+			"properties": {
+				"crypto_keys": {
+					"type": "array",
+					"items": {
+						"$ref": "#/definitions/wsproxysdk.CryptoKey"
+					}
+				}
+			}
+		},
 		"wsproxysdk.DeregisterWorkspaceProxyRequest": {
 			"type": "object",
 			"properties": {