Fix handling special chars in script paths

This commit improves the handling of paths with spaces or special
characters during script execution in the desktop application.

Key improvements:

- Paths are now quoted for macOS/Linux, addressing issues with
  whitespace or single quotes.
- Windows paths are enclosed in double quotes to handle special
  characters.

Other supporting changes:

- Add more documentation for terminal execution commands.
- Refactor terminal script file execution into a dedicated file for
  improved separation of concerns.
- Refactor naming of `RuntimeEnvironment` to align with naming
  conventions (no interface with I prefix) and for clarity.
- Refactor `TemporaryFileCodeRunner` to simplify it by removing the `os`
  parameter and handling OS-specific logic within the filename generator
  instead.
- Refactor `fileName` to `filename` for consistency.

tests/unit/shared/Stubs/CommandOpsStub.ts

@@ -4,9 +4,9 @@ import { StubWithObservableMethodCalls } from './StubWithObservableMethodCalls';
 export class CommandOpsStub
   extends StubWithObservableMethodCalls<CommandOps>
   implements CommandOps {
-  public execute(command: string): Promise<void> {
+  public exec(command: string): Promise<void> {
     this.registerMethodCall({
-      methodName: 'execute',
+      methodName: 'exec',
       args: [command],
     });
     return Promise.resolve();

tests/unit/shared/Stubs/FilenameGeneratorStub.ts

@@ -0,0 +1,14 @@
+import { FilenameGenerator } from '@/infrastructure/CodeRunner/Filename/FilenameGenerator';
+
+export class FilenameGeneratorStub implements FilenameGenerator {
+  private filename = `[${FilenameGeneratorStub.name}]file-name-stub`;
+
+  public generateFilename(): string {
+    return this.filename;
+  }
+
+  public withFilename(filename: string): this {
+    this.filename = filename;
+    return this;
+  }
+}

tests/unit/shared/Stubs/RuntimeEnvironmentStub.ts

@@ -1,7 +1,7 @@
-import { IRuntimeEnvironment } from '@/infrastructure/RuntimeEnvironment/IRuntimeEnvironment';
+import { RuntimeEnvironment } from '@/infrastructure/RuntimeEnvironment/RuntimeEnvironment';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 
-export class RuntimeEnvironmentStub implements IRuntimeEnvironment {
+export class RuntimeEnvironmentStub implements RuntimeEnvironment {
   public isNonProduction = true;
 
   public isDesktop = true;

tests/unit/shared/Stubs/ScriptFileExecutorStub.ts

@@ -0,0 +1,14 @@
+import { ScriptFileExecutor } from '@/infrastructure/CodeRunner/Execution/ScriptFileExecutor';
+import { StubWithObservableMethodCalls } from './StubWithObservableMethodCalls';
+
+export class ScriptFileExecutorStub
+  extends StubWithObservableMethodCalls<ScriptFileExecutor>
+  implements ScriptFileExecutor {
+  public executeScriptFile(filePath: string): Promise<void> {
+    this.registerMethodCall({
+      methodName: 'executeScriptFile',
+      args: [filePath],
+    });
+    return Promise.resolve();
+  }
+}