add rule plot_balance_timeseries

[fneum]

Changes proposed in this Pull Request

Example:

Checklist

• I tested my contribution locally and it works as intended.
• Code and workflow changes are sufficiently documented.
• Changed dependencies are added to envs/environment.yaml.
• Changes in configuration options are added in config/config.default.yaml.
• Changes in configuration options are documented in doc/configtables/*.csv.
• Sources of newly added data are documented in doc/data_sources.rst.
• A release note doc/release_notes.rst is added.

[Copilot]

Pull Request Overview

This PR adds a new rule for plotting energy balance time series by introducing a new script and corresponding configuration changes.

• Added the script scripts/plot_balance_timeseries.py to generate stacked area charts for energy balance data.
• Updated config/config.default.yaml with new balance_timeseries settings including thresholds, resolutions, and carrier groups.

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

File	Description
scripts/plot_balance_timeseries.py	New plotting script for energy balance time series using stacked area charts.
config/config.default.yaml	Added configuration parameters for balance_timeseries plotting.

Comments suppressed due to low confidence (1)

config/config.default.yaml:1059

• The 'monthly_resolution' key is left without a value. Ensure that a valid resolution string is provided to avoid potential configuration errors.

monthly_resolution:

[Eric-Nitschke]

@fneum at least for me, the changes of this PR lead to snakemake complaining:
The flag 'directory' used in rule all is only valid for outputs, not inputs.

However, it currently does not fully break it.

[fneum]

Yes, it will become a supported feature in snakemake 9 and does not hurt in 8.