Refactor xlsx gen

[tzschmidt]

• Refactor xlsx_gen
• Move charts from ipynb to spreadsheets -> ipynb_gen removed
• Several fixes regarding spreadsheets

[Copilot]

Pull request overview

Refactors XLSX generation into a dedicated benchmarktool.result.xlsx_gen package with separate sheet classes (instance/merged/class + helper/chart sheets), removes the Jupyter notebook generator path, and updates CLI/docs/tests accordingly.

Changes:

• Replaced the monolithic result/xlsx_gen.py with a structured result/xlsx_gen/ package (core types + result/plot sheet implementations).
• Removed ipynb_gen and the --jupyter-notebook CLI option; updated docs and dependencies to match.
• Split/rewrote XLSX-related tests into targeted modules under tests/result/xlsx_gen/.

Reviewed changes

Copilot reviewed 27 out of 31 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
tests/test_entry.py	Updates CLI conversion tests to reflect removal of the Jupyter notebook option.
tests/result/xlsx_gen/test_xlsx_gen.py	Adds unit tests for new spreadsheet primitives (Formula, DataValidation, Chart, XLSXDoc, etc.).
tests/result/xlsx_gen/test_result_sheet.py	Adds focused tests for shared ResultSheet behaviors (summaries, styles, write logic).
tests/result/xlsx_gen/test_merge_sheet.py	Adds tests for merged-runs sheet logic and summary generation behavior.
tests/result/xlsx_gen/test_instance_sheet.py	Adds tests for per-instance sheet layout and summary logic.
tests/result/xlsx_gen/test_helper_sheet.py	Adds tests for helper-sheet table construction used by charting.
tests/result/xlsx_gen/test_class_sheet.py	Adds tests for class-aggregation sheet behavior.
tests/result/xlsx_gen/test_chart_sheet.py	Adds tests for chart-sheet setup and chart object insertion.
tests/result/xlsx_gen/init.py	Introduces the test package namespace for XLSX generator tests.
tests/result/test_xlsx_gen.py	Removes legacy monolithic XLSX generator tests (superseded by granular tests).
tests/result/test_result_parser.py	Updates expectations for parsed measures based on updated reference XML.
tests/result/test_result_classes.py	Updates spreadsheet generation tests for new XLSXDoc API (finalize) and new sheet classes.
tests/result/test_ipynb_gen.py	Removes tests for the deleted Jupyter notebook generator.
tests/ref/test_eval.xml	Adjusts fixture XML to cover missing/mixed measure scenarios used by new XLSX tests.
src/benchmarktool/result/xlsx_gen/xlsx_gen.py	Adds new XLSXDoc orchestrating instance/merged/class/helper/chart sheets.
src/benchmarktool/result/xlsx_gen/spreadsheet.py	Adds core spreadsheet primitives (sheet base, formulas, validations, charts, helpers, system blocks).
src/benchmarktool/result/xlsx_gen/result_sheets/result_sheet.py	Adds shared result-sheet implementation (finalize/summaries/styles/write).
src/benchmarktool/result/xlsx_gen/result_sheets/merged_sheet.py	Adds merged-runs sheet implementation (merge criteria + formulas).
src/benchmarktool/result/xlsx_gen/result_sheets/instance_sheet.py	Adds instance-results sheet implementation (runs + per-column summaries).
src/benchmarktool/result/xlsx_gen/result_sheets/class_sheet.py	Adds class-summary sheet implementation (aggregation over instances).
src/benchmarktool/result/xlsx_gen/result_sheets/init.py	Introduces package namespace for result sheet implementations.
src/benchmarktool/result/xlsx_gen/plot_sheets/helper_sheet.py	Adds helper sheet that generates chart-ready tables/formulas.
src/benchmarktool/result/xlsx_gen/plot_sheets/chart_sheet.py	Adds chart sheet with user-selectable merge/measure and embedded charts.
src/benchmarktool/result/xlsx_gen/plot_sheets/init.py	Introduces package namespace for plot sheet implementations.
src/benchmarktool/result/xlsx_gen/init.py	Introduces xlsx_gen package namespace.
src/benchmarktool/result/xlsx_gen.py	Removes legacy monolithic XLSX generator implementation.
src/benchmarktool/result/result.py	Switches to new XLSXDoc import path and renames finish() to finalize().
src/benchmarktool/result/ipynb_gen.py	Removes Jupyter notebook generator module.
src/benchmarktool/entry_points.py	Removes --jupyter-notebook flag and notebook generation logic from CLI.
pyproject.toml	Removes nbformat dependency and the plot extra since notebook generation was removed.
docs/getting_started/conv/index.md	Updates documentation to describe built-in spreadsheet plots and remove notebook instructions.

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[BenKaufmann]

There is quite some duplication in the code for the different sheets that could probably be reduced by applying some patterns (e.g. template method) / restructuring. Not sure whether this is is worth the effort, though. However, maybe at least consider some low hanging fruits
like e.g. extracting a common enumerate(["SUM", "AVG", "DEV", "DST", "BEST", "BETTER", "WORSE", "WORST"]

Anyhow, given that I'm not a python expert, I'll let @rkaminsk approve this PR 😅

[rkaminsk]

This is way to big to fully review in reasonable time. I'd say just merge!