Fix script deletion during execution on desktop

This commit fixes an issue seen on certain Windows environments (Windows
10 22H2 and 11 23H2 Pro Azure VMs) where scripts were being deleted
during execution due to temporary directory usage. To resolve this,
scripts are now stored in a persistent directory, enhancing reliability
for long-running scripts and improving auditability along with
troubleshooting.

Key changes:

- Move script execution logic to the `main` process from `preloader` to
  utilize Electron's `app.getPath`.
- Improve runtime environment detection for non-browser environments to
  allow its usage in Electron main process.
- Introduce a secure module to expose IPC channels from the main process
  to the renderer via the preloader process.

Supporting refactorings include:

- Simplify `CodeRunner` interface by removing the `tempScriptFolderName`
  parameter.
- Rename `NodeSystemOperations` to `NodeElectronSystemOperations` as it
  now wraps electron APIs too, and convert it to class for simplicity.
- Rename `TemporaryFileCodeRunner` to `ScriptFileCodeRunner` to reflect
  its new functinoality.
- Rename `SystemOperations` folder to `System` for simplicity.
- Rename `HostRuntimeEnvironment` to `BrowserRuntimeEnvironment` for
  clarity.
- Refactor main Electron process configuration to align with latest
  Electron documentation/recommendations.
- Refactor unit tests `BrowserRuntimeEnvironment` to simplify singleton
  workaround.
- Use alias imports like `electron/main` and `electron/common` for
  better clarity.

tests/unit/infrastructure/RuntimeEnvironment/Node/NodeRuntimeEnvironment.spec.ts

@@ -0,0 +1,146 @@
+// eslint-disable-next-line max-classes-per-file
+import { describe, it, expect } from 'vitest';
+import { NodeJSProcessAccessor, NodeRuntimeEnvironment, PlatformToOperatingSystemConverter } from '@/infrastructure/RuntimeEnvironment/Node/NodeRuntimeEnvironment';
+import { itEachAbsentObjectValue } from '@tests/unit/shared/TestCases/AbsentTests';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+
+describe('NodeRuntimeEnvironment', () => {
+  describe('constructor', () => {
+    describe('throws with missing process', () => {
+      itEachAbsentObjectValue((absentValue) => {
+        // arrange
+        const expectedError = 'missing process';
+        const absentProcess = absentValue;
+        // act
+        const act = () => new NodeRuntimeEnvironmentBuilder()
+          .withProcess(absentProcess as never)
+          .build();
+        // assert
+        expect(act).to.throw(expectedError);
+      }, { excludeUndefined: true });
+    });
+  });
+  describe('os', () => {
+    it('matches specified OS', () => {
+      // arrange
+      const expectedOs = OperatingSystem.Android;
+      const osConverterMock: PlatformToOperatingSystemConverter = () => expectedOs;
+      // act
+      const environment = new NodeRuntimeEnvironmentBuilder()
+        .withOsConverter(osConverterMock)
+        .build();
+      // assert
+      expect(environment.os).to.equal(expectedOs);
+    });
+    it('uses process platform to determine OS', () => {
+      // arrange
+      const expectedPlatform: NodeJS.Platform = 'win32';
+      let actualPlatform: NodeJS.Platform | undefined;
+      const osConverterMock: PlatformToOperatingSystemConverter = (platform) => {
+        actualPlatform = platform;
+        return undefined;
+      };
+      const nodeProcessMock = new NodeJSProcessAccessorStub()
+        .withPlatform(expectedPlatform);
+      // act
+      new NodeRuntimeEnvironmentBuilder()
+        .withOsConverter(osConverterMock)
+        .withProcess(nodeProcessMock)
+        .build();
+      // assert
+      expect(expectedPlatform).to.equal(actualPlatform);
+    });
+    it('is undefined for unknown platforms', () => {
+      // arrange
+      const expectedOs = undefined;
+      const osConverterMock: PlatformToOperatingSystemConverter = () => undefined;
+      // act
+      const environment = new NodeRuntimeEnvironmentBuilder()
+        .withOsConverter(osConverterMock)
+        .build();
+      // assert
+      expect(environment.os).to.equal(expectedOs);
+    });
+  });
+  describe('isDesktop', () => {
+    it('is always true', () => {
+      // arrange
+      const expectedDesktopCondition = true;
+      // act
+      const environment = new NodeRuntimeEnvironment();
+      /// assert
+      expect(environment.isDesktop).to.equal(expectedDesktopCondition);
+    });
+  });
+  describe('isNonProduction', () => {
+    it('identifies development mode', () => {
+      // arrange
+      const expectedNonProductionCondition = true;
+      const nodeProcess = new NodeJSProcessAccessorStub()
+        .withNodeEnv('development');
+      // act
+      const environment = new NodeRuntimeEnvironmentBuilder()
+        .withProcess(nodeProcess)
+        .build();
+      /// assert
+      expect(environment.isNonProduction).to.equal(expectedNonProductionCondition);
+    });
+    it('identifies production mode', () => {
+      // arrange
+      const expectedNonProductionCondition = false;
+      const nodeProcess = new NodeJSProcessAccessorStub()
+        .withNodeEnv('production');
+      // act
+      const environment = new NodeRuntimeEnvironmentBuilder()
+        .withProcess(nodeProcess)
+        .build();
+      /// assert
+      expect(environment.isNonProduction).to.equal(expectedNonProductionCondition);
+    });
+  });
+});
+
+class NodeJSProcessAccessorStub implements NodeJSProcessAccessor {
+  private nodeEnv?: string = 'development';
+
+  public platform: NodeJS.Platform = 'linux';
+
+  public get env() {
+    return {
+      NODE_ENV: this.nodeEnv,
+    };
+  }
+
+  public withNodeEnv(nodeEnv?: string): this {
+    this.nodeEnv = nodeEnv;
+    return this;
+  }
+
+  public withPlatform(platform: NodeJS.Platform): this {
+    this.platform = platform;
+    return this;
+  }
+}
+
+class NodeRuntimeEnvironmentBuilder {
+  private process?: NodeJSProcessAccessor = new NodeJSProcessAccessorStub();
+
+  private osConverter?: PlatformToOperatingSystemConverter = () => OperatingSystem.Windows;
+
+  public withProcess(process?: NodeJSProcessAccessor): this {
+    this.process = process;
+    return this;
+  }
+
+  public withOsConverter(osConverter?: PlatformToOperatingSystemConverter): this {
+    this.osConverter = osConverter;
+    return this;
+  }
+
+  public build(): NodeRuntimeEnvironment {
+    return new NodeRuntimeEnvironment(
+      this.process,
+      this.osConverter,
+    );
+  }
+}