Changes backend in preparation for frontend work

aidlc-docs/features/cms-frontend/audit.md

@@ -95,3 +95,95 @@
 **Context**: Reverse Engineering completed; artifacts saved to aidlc-docs/_shared/reverse-engineering/. Awaiting user approval to proceed to Requirements Analysis.
 
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+
+---
+
+## NFR Design — Fixed Mermaid Diagram
+
+**Timestamp**: 2026-06-19T11:05:00Z
+
+**User Input**: "in `nfr-design-patterns.md` onder4. Standardized RFC 9457 Error Handling is mermaid diagram kapot. fix het diagram"
+
+**AI Response**: "Fixed Mermaid sequence diagram in `nfr-design-patterns.md`. Replaced invalid `style` syntax with inline participant coloring which is supported by Mermaid's sequence diagrams."
+
+**Context**: User reported a broken diagram. Corrected syntax to ensure readability and compatibility.
+
+---
+
+## NFR Design — Removed Backward Compatibility
+
+**Timestamp**: 2026-06-19T11:00:00Z
+
+**User Input**: "onder 4. ProblemDetails Integration in `logical-components.md` wordt nog rekening gehouden met backwards compatibility. in deze feature hoeft daar geen rekening mee gehouden te worden"
+
+**AI Response**: "Updated `logical-components.md` to specify that `ApiErrorResponse` will be fully replaced by `ProblemDetails` without backward compatibility."
+
+**Context**: User explicitly requested to drop backward compatibility for error responses.
+
+---
+
+## NFR Design — Updated Diagram Styles
+
+**Timestamp**: 2026-06-19T10:55:00Z
+
+**User Input**: "in het schema onder Middleware Ordering (Pipeline Design) in `logical-components.md` is de tekst slecht leesbaar. maak de tekst wat donkerder"
+
+**AI Response**: "Adjusted Mermaid diagram styles in `logical-components.md` and `nfr-design-patterns.md`. Increased contrast by using darker stroke colors, explicit text colors, and thicker borders for better readability."
+
+**Context**: User requested better readability for diagrams. Styles updated across all NFR Design artifacts.
+
+---
+
+## NFR Design — Stage Completed
+
+**Timestamp**: 2026-06-19T10:45:00Z
+
+**User Input**: "aidlc-workflow ik heb de vragen beantwoord in unit-0-nfr-design-plan.md"
+
+**AI Response**: "NFR Design Plan answers collected and analyzed. Generated `nfr-design-patterns.md` and `logical-components.md` for Unit 0."
+
+**Context**: NFR Design for Unit 0 is complete. Decisions: CORS via ServiceCollectionExtensions, Global Rate Limiting pipeline (Fixed/Sliding window), Secure Cookie (Strict), GlobalExceptionHandler extended for ProblemDetails.
+
+---
+
+---
+
+## Code Generation — Unit 0 Completed
+
+**Timestamp**: 2026-06-19T11:45:00Z
+
+**User Input**: "(Automatic completion of unit steps)"
+
+**AI Response**: "Successfully implemented Unit 0: Backend Prerequisites. 
+- Modified: AuthController, AuthService, IAuthService, ServiceCollectionExtensions, Program.cs, ApplicationUser, GlobalExceptionHandler, AvailabilityMiddleware, appsettings.json, appsettings.Development.json, README.md, GlobalExceptionHandlerTests.
+- Deleted: ApiErrorResponse.cs, RefreshTokenRequest (model).
+- Verified: Build succeeded, all 16 tests passed.
+- Deliverables: Secure cookie auth, CORS, Rate Limiting, ProblemDetails."
+
+**Context**: Unit 0 is finished and verified. Ready for Unit 1.
+
+---
+
+## Code Generation — Plan Approved
+
+**Timestamp**: 2026-06-19T11:20:00Z
+
+**User Input**: "approve plan"
+
+**AI Response**: "Plan for Unit 0 Code Generation approved. Transitioning to Part 2: Generation."
+
+**Context**: User approved `unit-0-code-generation-plan.md`. Starting implementation of backend prerequisites.
+
+---
+
+## Code Generation Planning — Plan Updated
+
+**Timestamp**: 2026-06-19T11:15:00Z
+
+**User Input**: "step 7 has a note about functional design Q4. That can be removed as I agree to the way we are going to implement it now"
+
+**AI Response**: "Updated `unit-0-code-generation-plan.md` Step 7 to remove the note about Q4 as the user agreed to the implementation approach (no Authorization on Revoke endpoint)."
+
+**Context**: User requested removal of a plan note; plan updated accordingly.
+
+---