Add planning baseline: BC, SA, PP and MIL-001 to MIL-003

Draft and accept the Business Case, Stakeholder Analysis (S01-S03) and Project Plan for the Day 15 coffee machine assignment. Add three milestones with 17 tasks, synced to the git host as Milestones 40-42 and Issues #1-#17. Register PP and MIL in the artifact registry and set the PO language to en. No issue closed: planning only, no code changed.
2026-10-05 00:25:11 +08:00
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+# Project Plan
+
+## Metadata
+| Key | Value |
+| --- | --- |
+| ID | PP-001 |
+| CrossReference | [BC-001], [SA-001], [MIL-001], [MIL-002], [MIL-003] |
+
+## Version History
+| Date | Status | Author | Reviewer | Change | Commit |
+| --- | --- | --- | --- | --- | --- |
+| 2026-10-05 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | pending |
+
+---
+
+## Purpose
+
+Schedule the three phases that take the coffee machine from empty repository to
+published project, within the short assignment timeline in [BC-001].
+
+## Planning Assumptions
+
+- Week 1 starts 2026-10-05; the plan ends by 2026-10-12.
+- Phase length: two to three days; S01 reviews each phase through a pull request (see [SA-001]).
+- Each phase is one branch and one pull request.
+
+## Gateway Schedule
+
+| Gateway | Document | Window | Decision date | Owner | Stories | Main deliverable | Milestone |
+| --- | --- | --- | --- | --- | --- | --- | --- |
+| Project Setup | [MIL-001] | 2026-10-05 to 2026-10-07 | 2026-10-07 | S01 | none | Skeleton, tooling, README | [Milestone 40] |
+| Coffee Machine Core | [MIL-002] | 2026-10-08 to 2026-10-10 | 2026-10-10 | S01 | none | Working program | [Milestone 41] |
+| Quality and Publication | [MIL-003] | 2026-10-11 to 2026-10-12 | 2026-10-12 | S01 | none | Tests, Doxygen, published repo | [Milestone 42] |
+
+```plantuml
+@startgantt
+Project starts 2026-10-05
+[Project Setup] starts 2026-10-05 and ends 2026-10-07
+[Coffee Machine Core] starts 2026-10-08 and ends 2026-10-10
+[Quality and Publication] starts 2026-10-11 and ends 2026-10-12
+[MIL-001 Go/No-Go] happens 2026-10-07
+[MIL-002 Go/No-Go] happens 2026-10-10
+[MIL-003 Go/No-Go] happens 2026-10-12
+@endgantt
+```
+
+## Scope Coverage
+
+| Business Case scope item | Gateway |
+| --- | --- |
+| Console program with `constants.py` | [MIL-002] |
+| pytest tests | [MIL-003] |
+| `pyproject.toml`, `.gitignore`, `Doxyfile`, README | [MIL-001] |
+| Project documents | Planning, before [MIL-001] |
+| Repository description and topics | [MIL-003] |
+
+## Dependencies
+
+```
+MIL-001 -> MIL-002 -> MIL-003
+```
+
+A No-Go moves all later dates by the same amount.
+
+## Plan Risks
+
+| Risk | Impact | Mitigation |
+| --- | --- | --- |
+| README template not supplied | README task blocked | Ask S01 for the template before the task |
+| Doxygen not installed locally | Cannot verify docs | Document the install step in README |
+
+## Open Issues
+
+- The README template referenced in the request ("template below") was not included.
+- No use cases or user stories are written; tasks are plain technical tasks implementing the assignment specification. S01 can ask for a use case ("Order a drink") if wanted.
+- Python ">3.13" is read as 3.13 or newer (`>=3.13`).
+
+---
+
+[BC-001]: ./business-case.md
+[SA-001]: ./stakeholder-analysis.md
+[MIL-001]: ./milestones/mil-001-project-setup.md
+[MIL-002]: ./milestones/mil-002-coffee-machine-core.md
+[MIL-003]: ./milestones/mil-003-quality-and-publication.md
+[Milestone 40]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/40
+[Milestone 41]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/41
+[Milestone 42]: https://git.tirsystem.com/Tirsvad-Udemy-100_days_of_code/015-coffee_machine/milestone/42