feat: personal equipment tracking, order assignment, purge fix, widget consolidation

- Migration 084: new persoenliche_ausruestung table with catalog link, user
  assignment, soft delete; adds zuweisung_typ/ausruestung_id/persoenlich_id
  columns to ausruestung_anfrage_positionen; seeds feature group + 5 permissions

- Fix user data purge: table was shop_anfragen, renamed to ausruestung_anfragen
  in mig 046 — caused full transaction rollback. Also keep mitglieder_profile
  row but NULL FDISK-synced fields (dienstgrad, geburtsdatum, etc.) instead of
  deleting the profile

- Personal equipment CRUD: backend service/controller/routes at
  /api/persoenliche-ausruestung; frontend page with DataTable, user filter,
  catalog Autocomplete, FAB create dialog; widget in Status group; sidebar
  entry (Checkroom icon); card in MitgliedDetail Tab 0

- Ausruestungsanfrage item assignment: when a request reaches erledigt,
  auto-opens ItemAssignmentDialog listing all delivered positions; each item
  can be assigned as general equipment (vehicle/storage), personal item (user,
  prefilled with requester), or not tracked; POST /requests/:id/assign backend

- StatCard refactored to use WidgetCard as outer shell for consistent header
  styling across all dashboard widget templates

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/database/migrations/084_persoenliche_ausruestung.sql

@@ -0,0 +1,82 @@
+-- Migration: 084_persoenliche_ausruestung
+-- Creates persoenliche_ausruestung table, adds assignment columns to
+-- ausruestung_anfrage_positionen, and seeds feature_group + permissions.
+
+-- 1. Create persoenliche_ausruestung table
+CREATE TABLE IF NOT EXISTS persoenliche_ausruestung (
+    id                   UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    bezeichnung          TEXT NOT NULL,
+    kategorie            TEXT,
+    artikel_id           INT REFERENCES ausruestung_artikel(id) ON DELETE SET NULL,
+    user_id              UUID REFERENCES users(id) ON DELETE SET NULL,
+    benutzer_name        TEXT,
+    groesse              TEXT,
+    seriennummer         TEXT,
+    inventarnummer       TEXT,
+    anschaffung_datum    DATE,
+    zustand              TEXT DEFAULT 'gut' CHECK (zustand IN ('gut','beschaedigt','abgaengig','verloren')),
+    notizen              TEXT,
+    anfrage_id           INT REFERENCES ausruestung_anfragen(id) ON DELETE SET NULL,
+    anfrage_position_id  INT REFERENCES ausruestung_anfrage_positionen(id) ON DELETE SET NULL,
+    erstellt_von         UUID REFERENCES users(id) ON DELETE SET NULL,
+    erstellt_am          TIMESTAMPTZ DEFAULT NOW(),
+    aktualisiert_am      TIMESTAMPTZ DEFAULT NOW(),
+    geloescht_am         TIMESTAMPTZ
+);
+
+CREATE INDEX IF NOT EXISTS idx_persoenliche_ausruestung_user
+    ON persoenliche_ausruestung(user_id) WHERE geloescht_am IS NULL;
+CREATE INDEX IF NOT EXISTS idx_persoenliche_ausruestung_artikel
+    ON persoenliche_ausruestung(artikel_id);
+
+-- Auto-update aktualisiert_am trigger (uses the aktualisiert_am variant from migration 018)
+CREATE TRIGGER trg_persoenliche_ausruestung_aktualisiert_am
+    BEFORE UPDATE ON persoenliche_ausruestung
+    FOR EACH ROW EXECUTE FUNCTION update_aktualisiert_am_column();
+
+-- 2. Add assignment columns to ausruestung_anfrage_positionen
+ALTER TABLE ausruestung_anfrage_positionen
+    ADD COLUMN IF NOT EXISTS zuweisung_typ TEXT CHECK (zuweisung_typ IN ('ausruestung','persoenlich','keine'));
+
+ALTER TABLE ausruestung_anfrage_positionen
+    ADD COLUMN IF NOT EXISTS zuweisung_ausruestung_id UUID REFERENCES ausruestung(id) ON DELETE SET NULL;
+
+ALTER TABLE ausruestung_anfrage_positionen
+    ADD COLUMN IF NOT EXISTS zuweisung_persoenlich_id UUID REFERENCES persoenliche_ausruestung(id) ON DELETE SET NULL;
+
+-- 3. Feature group + permissions
+INSERT INTO feature_groups (id, name, maintenance_mode)
+VALUES ('persoenliche_ausruestung', 'Persönliche Ausrüstung', false)
+ON CONFLICT DO NOTHING;
+
+INSERT INTO permissions (id, feature_group_id, description) VALUES
+    ('persoenliche_ausruestung:view',     'persoenliche_ausruestung', 'Eigene persönliche Ausrüstung anzeigen'),
+    ('persoenliche_ausruestung:view_all', 'persoenliche_ausruestung', 'Alle persönliche Ausrüstung anzeigen'),
+    ('persoenliche_ausruestung:create',   'persoenliche_ausruestung', 'Persönliche Ausrüstung erstellen'),
+    ('persoenliche_ausruestung:edit',     'persoenliche_ausruestung', 'Persönliche Ausrüstung bearbeiten'),
+    ('persoenliche_ausruestung:delete',   'persoenliche_ausruestung', 'Persönliche Ausrüstung löschen')
+ON CONFLICT DO NOTHING;
+
+-- Seed permissions for groups: admin, kommandant, gruppenkommandant, zeugmeister get all; others get view only
+INSERT INTO group_permissions (group_name, permission_id)
+SELECT g.name, p.id
+FROM (VALUES
+    ('dashboard_admin'),
+    ('dashboard_kommandant'),
+    ('dashboard_gruppenkommandant'),
+    ('dashboard_zeugmeister')
+) AS g(name)
+CROSS JOIN permissions p
+WHERE p.feature_group_id = 'persoenliche_ausruestung'
+ON CONFLICT DO NOTHING;
+
+-- All other groups get view only
+INSERT INTO group_permissions (group_name, permission_id)
+SELECT g.name, 'persoenliche_ausruestung:view'
+FROM (VALUES
+    ('dashboard_feuerwehrmitglied'),
+    ('dashboard_atemschutztraeger'),
+    ('dashboard_fahrmeister'),
+    ('dashboard_jugend')
+) AS g(name)
+ON CONFLICT DO NOTHING;