Rename Cloud Runner to Orchestrator (#775)

* Rename "Cloud Runner" to "Orchestrator" across entire codebase

Breaking change: All CloudRunner classes, options, environment variables,
and action.yml inputs have been renamed to Orchestrator equivalents.

- Renamed src/model/cloud-runner/ directory to src/model/orchestrator/
- Renamed all cloud-runner-* files to orchestrator-*
- Renamed all CloudRunner* classes to Orchestrator* (15+ classes)
- Renamed all cloudRunner* properties to orchestrator* equivalents
- Renamed CLOUD_RUNNER_* env vars to ORCHESTRATOR_*
- Updated action.yml [CloudRunner] markers to [Orchestrator]
- Updated workflow files and package.json test scripts
- Updated all runtime strings (cache paths, log messages, branch refs)
- Rebuilt dist/index.js

No backward compatibility layer is provided.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Remove tracked log/temp files and add to .gitignore

Remove $LOG_FILE and temp/job-log.txt debug artifacts that should
not be in the repository.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

src/index.ts

@@ -1,5 +1,5 @@
 import * as core from '@actions/core';
-import { Action, BuildParameters, Cache, CloudRunner, Docker, ImageTag, Output } from './model';
+import { Action, BuildParameters, Cache, Orchestrator, Docker, ImageTag, Output } from './model';
 import { Cli } from './model/cli/cli';
 import MacBuilder from './model/mac-builder';
 import PlatformSetup from './model/platform-setup';
@@ -33,7 +33,7 @@ async function runMain() {
               ...buildParameters,
             });
     } else {
-      await CloudRunner.run(buildParameters, baseImage.toString());
+      await Orchestrator.run(buildParameters, baseImage.toString());
       exitCode = 0;
     }