Add Biological Organization Level Distribution visualization

[marvinm2]

Description

Show the distribution of Key Events across biological organization levels (molecular → cellular → tissue → organ → organism → population). This helps understand at which biological scales AOPs operate and identify coverage gaps across different levels of biological complexity.

Visualization Types

• Latest snapshot: Current distribution across organization levels
• Historical trends: Evolution of biological scale coverage over time

Value & Priority

• Priority: Phase 2 - Medium Priority
• Value: Medium
• Complexity: Low

Implementation Details

Key Data Requirements

Property available in property_labels.csv:

• Level of Biological Organisation (C25664)
• Applies to: KE only

Extract and count KEs by organization level:

• Molecular
• Cellular
• Tissue
• Organ
• Organism
• Population

Visualization Format

• Bar chart: Distribution of KEs across organization levels
• Stacked area chart: Historical trends showing evolution of coverage
• Percentage view: Proportion of KEs at each level over time
• Cross-tabulation: Organization levels by AOP (via KE membership)

Expected Insights

• Understand which biological scales are well-covered vs. underrepresented
• Identify gaps in molecular, cellular, or population-level events
• Show whether AOPs span multiple organization levels (systems biology view)
• Guide curation to fill gaps at specific biological scales
• Support multi-scale biological modeling efforts

Performance Notes

• Very simple property aggregation
• Low complexity, highly performant
• Straightforward categorical data visualization
• Can easily add historical trends view