Privacy hardening, remote-peer IP masking and review fixes

- Add privacy projection (core/privacy.py), private report storage, bounded
  process capture; omit identities, free text and unapproved paths
- Mask remote peer IPs: only loopback/host/wildcard stay numeric, others are
  reduced to remote_scope private/public (schema + scoring updated)
- Map ss TCP states to canonical names; ASCII-only numeric fields; fix
  "Microsoft Visual C++" product matching (Python and PowerShell)
- Merge 7fed3b9: -Diagnostic switch, serialization exit code 3, PS7 module
  path, UI error detail; keep hardened task/certificate collectors
- Add audit docs, privacy docs and regression tests

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tests/test_core.py

@@ -5,7 +5,7 @@ import unittest
 from samsara.core.validation import validate_hostname
 from samsara.collectors.demo import collect_demo, DEMO_HOST
 from samsara.analyzers.assessment import assess
-from samsara.reporting.export import export_html, export_json
+from report_helpers import export_html, export_json
 
 class CoreTests(unittest.TestCase):
     def test_hostname(self):