feat: Document completed tasks for KMS, Cryptography, and Plugin Libraries

- Added detailed task completion records for KMS interface implementation and CLI support for file-based keys.
- Documented security enhancements including Argon2id password hashing, audit event contracts, and rate limiting configurations.
- Included scoped service support and integration updates for the Plugin platform, ensuring proper DI handling and testing coverage.

docs/ui/findings.md

@@ -143,9 +143,9 @@ Explain drawer includes copy-to-clipboard buttons for rule chain and evidence JS
 
 ## 10. Screenshot coordination
 
-- Placeholders:  
-  - `![Findings grid placeholder](../assets/ui/findings/grid-placeholder.png)`  
-  - `![Explain drawer placeholder](../assets/ui/findings/explain-placeholder.png)`  
+- Placeholders (captures pending upload):  
+  - `docs/assets/ui/findings/grid-placeholder.png`  
+  - `docs/assets/ui/findings/explain-placeholder.png`  
 - Coordinate with Console Guild (Slack `#console-screenshots`, entry 2025-10-26) to capture updated light and dark theme shots before release.
 
 ---
@@ -176,4 +176,3 @@ Explain drawer includes copy-to-clipboard buttons for rule chain and evidence JS
 ---
 
 *Last updated: 2025-10-26 (Sprint 23).* 
-