Import NethVoice components into monorepo

[Amygos]

Description

Import the NethVoice external components into the ns8-nethvoice
monorepo as first-class source code.

The module should no longer depend on build-time source clones from
github.com/nethesis/... repositories or wrapper images from
ghcr.io/nethesis/... for these components.

Scope:

• import reports, Tancredi, NethCTI server, Satellite, middleware, CTI UI
  and astproxy sources into the module repository
• build imported components from local source paths
• replace the external npm astproxy dependency with a local file dependency
• remove imported standalone release/build/version workflows
• keep/adapt only module-level workflows that still apply

Expected outcome

NethVoice component versions follow the main ns8-nethvoice module
version, and CI builds/test runs validate the monorepo layout.

References

The implementation branch records the imported upstream source commits in
its commit messages.