Refactor workflow to use new functions (#17552)

Removes the versioning system for logic functions (`latestVersion`,
`publishedVersions`) and simplifies the file storage structure.

### Changes
- Remove `publishOneLogicFunctionOrFail` and publishing logic from
workflow status updates
- Add `createLogicFunctionFromExistingLogicFunction` to duplicate logic
functions when creating draft workflow versions
- Update `createDraftStep` to create a new logic function copy instead
of referencing the same one
- Migrate file storage to v2 endpoints with
`applicationUniversalIdentifier`
- Unify path structure: source files at `source/workflow/{id}/`, built
files at `built-logic-function/workflow/{id}/`
- Store full paths in `sourceHandlerPath` and `builtHandlerPath` entity
fields

packages/twenty-server/src/engine/workspace-manager/dev-seeder/data/services/dev-seeder-data.service.ts

@@ -429,7 +429,7 @@ export class DevSeederDataService {
       const filePath = join(sampleFilesDir, filename);
       const fileBuffer = await readFile(filePath);
 
-      await this.fileStorageService.write({
+      await this.fileStorageService.writeFile({
         file: fileBuffer,
         name: filename,
         folder: `workspace-${workspaceId}/attachment`,