[Tech Debt] Remove dead code: OracleVMManager

[sonikro]

Problem

packages/providers/src/cloud-providers/oracle/OracleVMManager.ts is a 266-line implementation that is entirely unused in production. It is imported in ServerManagerFactory.ts but its usage is commented out:

// In ServerManagerFactory.ts
import { AWSServerManager, OracleVMManager } from "../cloud-providers";

// ...
case CloudProvider.ORACLE:
    return new OCIServerManager({ ... });
    // return OracleVMManager.create({ ... });  <-- commented out

OCIServerManager is the active Oracle implementation. OracleVMManager is dead code that adds confusion, maintenance burden, and import noise.

Fix

1. Delete packages/providers/src/cloud-providers/oracle/OracleVMManager.ts
2. Delete packages/providers/src/cloud-providers/oracle/OracleVMManager.test.ts
3. Remove the OracleVMManager import from ServerManagerFactory.ts
4. Remove the commented-out return OracleVMManager.create(...) block
5. Clean up packages/providers/src/cloud-providers/oracle/index.ts barrel export