The "Maßnahmen" page in the Bremsscheibe project showed a flat list with
heavy redundancy — e.g. "Sicherheitszeichen nach ISO 7010" appeared on 21
separate rows, one per linked hazard. Same for "Gefahrenpiktogramme",
"Flucht- und Rettungswege" etc. The signal got lost in the noise.
This is a presentation-only regrouping. Each Hazard×Mitigation pair stays
a separate DB row with its own status, notes and edit history (option B
from the discussion: instances remain independently editable). The page
now collapses rows that share the same `m.title` into one group row.
Group row shows:
- title + ISO 12100 sub-category (if encoded in description)
- count of linked hazards on the right
- compact status distribution "P · I · V" (Planned/Implemented/Verified)
- shared checkbox that selects all instances in the group
Click expands the group and reveals the individual hazard×measure rows,
each with its own StatusBadge and detail-expand for MitigationHints.
State additions:
- expandedGroup: Set<string> with keys `${type}:${title}` so the same
title across different reduction stages stays independently togglable
- groupByTitle() helper trims the title, falls back to "(ohne Titel)"
- statusCounts() helper for the P·I·V breakdown
Pagination semantics swapped from 50 instances/page to 50 groups/page —
makes the list far easier to scan at the ~80-instance scale this project
exhibits.
LOC: 267 → 346 (well under the 500 hard cap).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Benjamin Admin
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