Replace draft SVD_THEMES with themes produced by per-axis analysis of all
10 unique top motions (zero cross-axis overlap, window=2025). Each axis now
has a detailed Dutch-language explanation, positive_pole and negative_pole
labels, displayed as colour-coded columns in the UI.
- Regenerated top_svd_top_motions.json for window=2025 with strict
cross-axis deduplication: 100 unique motions across 10 axes (10 per
axis, zero overlap), sorted by absolute SVD score
- Added SVD_THEMES dict to build_svd_components_tab with Dutch-language
theme label and political-polarisation explanation for each of the 10
axes (e.g. 'Confessioneel-conservatief vs. seculier-progressief')
- Selectbox now shows 'As N — <theme>' instead of bare component number
- Each selected axis shows an info banner with the full explanation
- Motion list buttons show ▲/▼ to indicate positive/negative SVD loading
- Translated UI strings to Dutch for consistency
Root causes:
- Seed selection sorted by controversy_score across all 28k motions, but
only 282 have individual MP vote records. Top controversial motions only
have party-level votes, so match_mps_for_votes always returned empty.
- global_db singleton was used for match/discriminate instead of the db_path
passed to the tab builder.
Fixes:
- Add MotionDatabase.get_motions_with_individual_votes(k) which queries
motions with comma-formatted mp_name votes, ordered by controversy_score
- Replace broken seed logic in build_mp_quiz_tab with this new method
- Replace global_db usages with a local MotionDatabase(db_path) instance
- Guard against motion IDs present in votes but absent from motions DataFrame
Sven Geboers