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/model/index.ts

@@ -9,8 +9,8 @@ import Platform from './platform';
 import Project from './project';
 import Unity from './unity';
 import Versioning from './versioning';
-import CloudRunner from './cloud-runner/cloud-runner';
-import loadProvider, { ProviderLoader } from './cloud-runner/providers/provider-loader';
+import Orchestrator from './orchestrator/orchestrator';
+import loadProvider, { ProviderLoader } from './orchestrator/providers/provider-loader';
 
 export {
   Action,
@@ -24,7 +24,7 @@ export {
   Project,
   Unity,
   Versioning,
-  CloudRunner as CloudRunner,
+  Orchestrator as Orchestrator,
   loadProvider,
   ProviderLoader,
 };