consolidation of some of the modules, localization fixes, product advisories work, qa work

docs/modules/cli/guides/commands/sbom.md

@@ -59,6 +59,11 @@ The command performs the following verification checks:
 4. **Tool Version**: Verifies tool version metadata is present and valid.
 5. **Timestamp Validity**: Checks generation timestamp is within acceptable window.
 
+### 2026-02-26 parity note
+
+- `stella sbom verify` now follows verification-first behavior and no longer relies on structural placeholder checks.
+- Deterministic failure reasons are surfaced for missing trust roots, malformed signatures, and verification mismatch paths.
+
 ### Exit Codes
 
 | Code | Meaning |