Improve Tests: Package Server Components and Use AutoScript from Source

[nilp0inter]

Currently, the test infrastructure for autofirma-nix relies on downloading prebuilt WAR files for the server components and fetching the latest release of AutoScript. This introduces potential inconsistencies between what we package and what we test.

To improve test reliability and ensure alignment with upstream, we should:

1. Package the following server components instead of downloading the official WARs:
   • afirma-server-triphase-signer.war
   • afirma-signature-retriever.war
   • afirma-signature-storage.war
2. Use these packaged versions in tests rather than relying on the official published binaries.
3. Fetch AutoScript directly from the source repository instead of using the latest release.

Benefits

• Ensures tests are in sync with the packaged version of AutoFirma.
• Prevents issues caused by upstream changes in published binaries that we don't control.
• Reduces external dependencies, making tests more reproducible.
• Aligns with the Nix philosophy of building everything from source when possible.

Next Steps

• Investigate the necessary dependencies and build steps for packaging:
  • afirma-server-triphase-signer
  • afirma-signature-retriever
  • afirma-signature-storage
• Modify tests to use these packaged versions instead of downloading WAR files.
• Adjust the test setup to fetch AutoScript from the source repository instead of using a prebuilt release.