Remove trends tab, metric toggle, render helper, and callback I/O
from Patient Pathways view. Trends will be re-added as a standalone
3rd view in E.2-E.4. Preserved get_trend_data() and create_trend_figure()
for reuse.
Removed 6 chart tabs (Market Share, Cost Effectiveness, Cost Waterfall,
Dosing, Heatmap, Duration) from the Patient Pathways tab bar. These will
reappear in the Trust Comparison dashboard (Task 10.8).
All _render_* helper functions preserved in chart.py for reuse.
- Create create_cost_effectiveness_figure() in plotly_generator.py
Horizontal lollipop chart with dot size by patient count,
colour gradient green→amber→red by cost, retention annotations
- Fix calculate_retention_rate() to accept both 'value' and 'patients' keys
- Add _render_cost_effectiveness() dispatch in chart.py callbacks
- Wire into tab switching for active_tab='cost-effectiveness'
- create_market_share_figure() in src/visualization/plotly_generator.py
- Horizontal stacked bar chart: directorates × drugs with patient %
- Wire into tab dispatch via _render_market_share() helper in chart.py
- Responds to date, chart type, trust, and directorate filters
- Create src/data_processing/parsing.py with parse_average_spacing(),
parse_pathway_drugs(), and calculate_retention_rate()
- Add 8-tab bar to chart_card.py (Icicle, Market Share, Cost Effectiveness,
Cost Waterfall, Sankey, Dosing, Heatmap, Duration)
- Add active-tab dcc.Store and tab switching callback in chart.py
- Remove Chart Views section from sidebar (now in tab bar)
- Lazy rendering: only active tab's chart is computed
- Add create_icicle_from_nodes() to src/visualization/plotly_generator.py
accepting list-of-dicts from dcc.Store with NHS blue gradient colorscale,
10-field customdata, and matching text/hover templates from Reflex version
- Add update_chart callback to dash_app/callbacks/chart.py rendering
go.Icicle figure from chart-data store with dynamic subtitle
- Title generation helper mirrors Reflex _generate_pathway_chart_title()
Andrew Charlwood