feat: Implement application bootstrap and window management

- Added bootstrap functionality to initialize the Electron application.
- Created a new paths module to manage application paths and URLs.
- Introduced a shutdown service to handle graceful application shutdowns.
- Refactored error logging to use a dedicated logger module.
- Implemented process killing logic for NodeCG processes across platforms.
- Established navigation policies for internal and external URL handling in windows.
- Developed window service for creating and managing application windows.
- Added tests for application paths, application controller, navigation policies, process killer, and shutdown service.

src/main/app/paths.ts

@@ -0,0 +1,60 @@
+import path from "node:path";
+
+import { AppRuntimeConfig } from "../config/runtime-config";
+
+export type ApplicationPaths = {
+  rootPath: string;
+  sourceNodecgRuntimePath: string;
+  userDataPath: string;
+  nodecgBaseUrl: string;
+  mainDashboardUrl: string;
+  loadingDashboardUrl: string;
+};
+
+export function getRootPath(isDev: boolean, compiledMainDir: string, resourcesPath: string): string {
+  return isDev ? path.resolve(compiledMainDir, "../..") : resourcesPath;
+}
+
+export function getUserDataPath(appDataPath: string, userDataDirectoryName: string): string {
+  return path.join(appDataPath, userDataDirectoryName);
+}
+
+export function getSourceNodecgRuntimePath(rootPath: string): string {
+  return path.resolve(rootPath, "lib", "nodecg");
+}
+
+export function getNodecgBaseUrl(nodecgPort: string): string {
+  return `http://127.0.0.1:${nodecgPort}`;
+}
+
+export function getDashboardUrl(nodecgPort: string, bundleName: string, dashboardRoute: string): string {
+  return `http://localhost:${nodecgPort}/bundles/${bundleName}/${dashboardRoute}`;
+}
+
+export function getApplicationPaths({
+  appConfig,
+  appDataPath,
+  compiledMainDir,
+  isDev,
+  resourcesPath,
+}: {
+  appConfig: Pick<
+    AppRuntimeConfig,
+    "bundleName" | "loadingDashboardRoute" | "mainDashboardRoute" | "nodecgPort" | "userDataDirectoryName"
+  >;
+  appDataPath: string;
+  compiledMainDir: string;
+  isDev: boolean;
+  resourcesPath: string;
+}): ApplicationPaths {
+  const rootPath = getRootPath(isDev, compiledMainDir, resourcesPath);
+
+  return {
+    rootPath,
+    sourceNodecgRuntimePath: getSourceNodecgRuntimePath(rootPath),
+    userDataPath: getUserDataPath(appDataPath, appConfig.userDataDirectoryName),
+    nodecgBaseUrl: getNodecgBaseUrl(appConfig.nodecgPort),
+    mainDashboardUrl: getDashboardUrl(appConfig.nodecgPort, appConfig.bundleName, appConfig.mainDashboardRoute),
+    loadingDashboardUrl: getDashboardUrl(appConfig.nodecgPort, appConfig.bundleName, appConfig.loadingDashboardRoute),
+  };
+}