Add Pretty Table project: plan, accepted documents and code

Business Case, Stakeholder Analysis, Project Plan and milestone MIL-001
with review records RC-001 to RC-003, then the Python project: PrettyTable
Pokemon table, constants, pytest tests, pyproject.toml, Doxyfile, CI
workflow and README.

Task: MIL-001#1
Task: MIL-001#2
Task: MIL-001#3
Task: MIL-001#4
Task: MIL-001#5
Task: MIL-001#6
Task: MIL-001#7
Task: MIL-001#8

docs/project-plan.md

@@ -0,0 +1,71 @@
+# Project Plan
+
+## Metadata
+| Key | Value |
+| --- | --- |
+| ID | PP-001 |
+| CrossReference | [BC-001], [SA-001], [MIL-001] |
+| Language | en |
+| Domain | it |
+
+## Version History
+| Date | Status | Author | Reviewer | Change | Commit |
+| --- | --- | --- | --- | --- | --- |
+| 2026-10-07 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | pending |
+
+---
+
+## Purpose
+
+Schedules the single delivery phase of the Pretty Table assignment so that the repository can be published within one week, as the Business Case's small-scope constraint implies.
+
+## Planning Assumptions
+
+- Week 1 starts 2026-10-07; the plan ends by 2026-10-14.
+- One phase of one week; the Product Owner (S01) is the only decision maker, per [SA-001].
+
+## Gateway Schedule
+
+| Gateway | Document | Window | Decision date | Owner | Stories | Main deliverable | Milestone |
+| --- | --- | --- | --- | --- | --- | --- | --- |
+| G1 Project delivery | [MIL-001] | 2026-10-07 to 2026-10-14 | 2026-10-14 | S01 | none | Tested, documented Python project and published repository metadata | |
+
+```plantuml
+@startgantt
+Project starts 2026-10-07
+[G1 Project delivery] starts 2026-10-07 and ends 2026-10-14
+[G1 Go/No-Go] happens 2026-10-14
+@endgantt
+```
+
+## Scope Coverage
+
+| Business Case scope item | Gateway |
+| --- | --- |
+| Source under `src/`, tests under `tests/`, documents under `docs/` | G1 |
+| `pyproject.toml`, `.gitignore`, `Doxyfile`, README | G1 |
+| Repository description and topics | G1 |
+
+## Dependencies
+
+```
+G1 Project delivery
+```
+
+A No-Go on G1 moves the decision date until the failed criteria are fixed.
+
+## Plan Risks
+
+| Risk | Impact | Mitigation |
+| --- | --- | --- |
+| Git host API is unavailable for description and topics | Task cannot be completed | Set them by hand on the repository page |
+
+## Open Issues
+
+- The assignment's exact function names are not given in the task text; the code uses `create_table` and `main`, to be adjusted if S01 names others.
+
+---
+
+[BC-001]: ./business-case.md
+[SA-001]: ./stakeholder-analysis.md
+[MIL-001]: ./milestones/mil-001-pretty-table-project.md