Details about recent commits and eventual upgrade plan

[abhiprd2000]

@TasfinMahmud , As per in the email, here are teh details of the changes I made to integrate your PRs into the codebase:

• Physics layer is now a pluggable provider interface (cnsd/physics/providers/).
  Bearings are one provider; added a SpectralProvider as the universal
  zero-knowledge fallback so CNSD runs on any machine, not just bearings.
• Your YAML config now drives the engine. New cnsd/builder.py turns the config
  into a provider + taxonomy; domain.type selects the provider,
  physics.parameters parameterizes it. The config/API layer you built is what
  made this merge clean.
• Removed the hardcoded CWRU taxonomy and the broken load_dataset(); the engine
  no longer has any dataset-specific coupling. Dataset now carries an optional
  taxonomy.
• Fixed two real bugs: a family-name mismatch that made every correct prediction
  read as CONFLICT, and a missing predicted_class field that broke the headline
  metric.
• All 7 unit tests pass; full repo compiles clean.

Can you now do a thorough check of the full codebase from your side and further act on #8 .