feat(update): add update deployment via web UI

- Deploy exe to alternate port 5033
- Current instance keeps running
- Add parallel mode and addr flag
- Add update panel to web UI
- Update OpenAPI spec and CLI

lib/openapi/spec.go

@@ -230,6 +230,32 @@ func Spec() map[string]any {
 					}),
 				},
 			},
+			"/api/v1/update": map[string]any{
+				"post": map[string]any{
+					"summary":     "Deploy uploaded agent executable on alternate port",
+					"operationId": "deployUpdate",
+					"description": "Upload a .exe and launch it on port 5033 when this instance uses 5032, or vice versa. The current instance is left running.",
+					"requestBody": map[string]any{
+						"required": true,
+						"content": map[string]any{
+							"multipart/form-data": map[string]any{
+								"schema": map[string]any{
+									"type":     "object",
+									"required": []string{"file"},
+									"properties": map[string]any{
+										"file": map[string]string{"type": "string", "format": "binary", "description": "Windows amd64 executable"},
+									},
+								},
+							},
+						},
+					},
+					"responses": auth(map[string]any{
+						"200": okJSON("Update launched", ref("UpdateResult")),
+						"400": errResp("Invalid file or executable"),
+						"409": errResp("Alternate port already in use"),
+					}),
+				},
+			},
 			"/api/v1/input/click": map[string]any{
 				"post": map[string]any{
 					"summary":     "Click the desktop",
@@ -350,6 +376,15 @@ func Spec() map[string]any {
 						"name": map[string]string{"type": "string"},
 					},
 				},
+				"UpdateResult": map[string]any{
+					"type": "object",
+					"properties": map[string]any{
+						"ok":                      map[string]any{"type": "boolean"},
+						"path":                    map[string]string{"type": "string"},
+						"listen_address":          map[string]string{"type": "string"},
+						"previous_listen_address": map[string]string{"type": "string"},
+					},
+				},
 				"ExecRequest": map[string]any{
 					"type": "object", "required": []string{"command"},
 					"properties": map[string]any{