Re-review the Business Case and accept v4

Add RC-008 for the Business Case after v3 added objective 6. Two
defects found: objective 6 had no success criterion, and the Python
version was worded differently in the assumption and the constraint.
BC-001 v4 fixes both and is accepted; v3 is deprecated. The
traceability matrix now points to RC-008.
No issue closed: review and documentation only, no code changed.

docs/artifact-registry.md

@@ -15,7 +15,7 @@ document of a type. `Primary File` may contain a glob (e.g.
 | SA | Stakeholder Analysis | docs/stakeholder-analysis.md | 002 |
 | PP | Project Plan | docs/project-plan.md | 002 |
 | MIL | Milestone / Gateway | docs/milestones/*.md | 005 |
-| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 008 |
+| RC | SQA Review Record | docs/sqa/reviews/rc-*.md | 009 |
 | TM | Traceability Matrix | docs/sqa/traceability-matrix.md | 002 |
 
 ## Languages

docs/business-case.md

@@ -9,8 +9,8 @@
 ## Version History
 | Date | Status | Author | Reviewer | Change | Commit |
 | --- | --- | --- | --- | --- | --- |
-| 2026-10-06 | Accepted | Jens Tirsvad Nielsen | S01 | Added duration constraint (RC-001 action) | [8ef00aa] |
+| 2026-10-06 | Deprecated | Jens Tirsvad Nielsen | S01 | Added objective 6 and scope for code review and CI | [8ef00aa] |
-| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added objective 6 and scope for code review and CI | [8ef00aa] |
+| 2026-10-06 | Accepted | Jens Tirsvad Nielsen | S01 | Added success criterion 6 and clarified the Python version (RC-008 actions) | pending |
 
 ---
 
@@ -92,6 +92,7 @@ professional project hygiene, and the goal of sharing readable solutions.
 | 3 | Runtime dependencies | 0 | `pyproject.toml` `dependencies` is empty |
 | 4 | Setup documented | A new reader can run program and tests from README | README walkthrough |
 | 5 | Repository metadata | Description and at least 3 topics set | Repository page |
+| 6 | Code reviewed and checked automatically | Source review record with verdict Go; latest CI run on `main` green | `docs/sqa/reviews/` and the CI run on the git host |
 
 ## Risks
 
@@ -108,7 +109,7 @@ professional project hygiene, and the goal of sharing readable solutions.
 
 ## Constraints
 
-- Python greater than 3.13 as requested, `venv` for environments, pytest for tests.
+- Python 3.13 or newer (the request says "greater than 3.13"; read as `>=3.13`), `venv` for environments, pytest for tests.
 - Constants live in `constants.py`.
 - Source files use Doxygen comments.
 - Nothing is committed or pushed unless the user asks.

docs/sqa/traceability-matrix.md

@@ -9,8 +9,8 @@
 ## Version History
 | Date | Status | Author | Reviewer | Change | Commit |
 | --- | --- | --- | --- | --- | --- |
-| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added MIL-004 | [8ef00aa] |
 | 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Added RC-006, RC-007 and the source code row | [00d47e2] |
+| 2026-10-06 | Proposed | Jens Tirsvad Nielsen | S01 | Business Case last reviewed in RC-008 | pending |
 
 ---
 
@@ -25,7 +25,7 @@ artifact instance is created or reviewed.
 | Artifact Instance | Type | Upstream (Backward Link) | Downstream (Forward Link) | Last Reviewed (RC-ID) |
 | --- | --- | --- | --- | --- |
 | [SA-001] | Stakeholder Analysis | - | [BC-001] | [RC-002] |
-| [BC-001] | Business Case | [SA-001] | [PP-001], [MIL-001], [MIL-002], [MIL-003], [MIL-004] | [RC-001] |
+| [BC-001] | Business Case | [SA-001] | [PP-001], [MIL-001], [MIL-002], [MIL-003], [MIL-004] | [RC-008] |
 | [PP-001] | Project Plan | [BC-001], [SA-001] | [MIL-001], [MIL-002], [MIL-003], [MIL-004] | - |
 | [MIL-001] | Milestone | [BC-001], [PP-001] | - | [RC-003] |
 | [MIL-002] | Milestone | [BC-001], [PP-001] | - | [RC-004] |
@@ -48,12 +48,11 @@ artifact instance is created or reviewed.
 [MIL-002]: ../milestones/mil-002-coffee-machine-core.md
 [MIL-003]: ../milestones/mil-003-quality-and-publication.md
 [MIL-004]: ../milestones/mil-004-code-review-and-ci.md
-[RC-001]: ./reviews/rc-001-business-case.md
 [RC-002]: ./reviews/rc-002-stakeholder-analysis.md
 [RC-003]: ./reviews/rc-003-mil-001.md
 [RC-004]: ./reviews/rc-004-mil-002.md
 [RC-005]: ./reviews/rc-005-mil-003.md
 [RC-006]: ./reviews/rc-006-source-code.md
 [RC-007]: ./reviews/rc-007-mil-004.md
-[8ef00aa]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/8ef00aafaaa193ea565f1a45238d31e963a5e05d
+[RC-008]: ./reviews/rc-008-business-case-v3.md
 [00d47e2]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/commit/00d47e244c82007bbc55e18312649189b175ec10