style: FA→Lucide migration — events misc, badges, leads, hosted_files; variant-* fixes

- Batch-migrated 10 files via migrate_fa_to_lucide.py (53+18+10+1+4+2+1+1+6+4 FA instances)
  - events/ae_comp__events_menu_opts.svelte (53)
  - events/ae_comp__event_file_obj_tbl.svelte (18)
  - events/ae_comp__event_presentation_obj_li.svelte (10)
  - events/ae_comp__event_session_obj_tbl.svelte (1)
  - badges/print_list/+page.svelte (2), badges/templates/+page.svelte (1)
  - leads/ae_tab__manage.svelte (4)
  - hosted_files/+page.svelte (1), hold_video_util.svelte (6), video_util/+page.svelte (4)
- events/[event_id]/+page.svelte: converted JS icon strings to Lucide component refs
  (Presentation, Plane, IdCard, Contact) — rendered via <mod.icon size="2rem" />
- +page.svelte: hover:variant-outline-warning → hover:preset-outlined-warning (×2)
- migrate_fa_to_lucide.py: added 18 new icon mappings
  (ArrowLeft/Right, Ban, Broom→Trash2, calendar-alt, Database, DoorOpen, Download,
   exchange-alt, file-image, lock, magic→Sparkles, print, sticky-note, sync, tag,
   trash, user-ninja/tie→UserRound, video)

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

scripts/migrate_fa_to_lucide.py

@@ -84,6 +84,29 @@ FA_TO_LUCIDE = {
     'fa-calendar-day':       'CalendarDays',
     'fa-bell-slash':         'BellOff',
     'fa-bell':               'Bell',
+    # ── Additional mappings ──────────────────────────────────────────────────
+    'fa-arrow-left':         'ArrowLeft',
+    'fa-arrow-right':        'ArrowRight',
+    'fa-arrow-up':           'ArrowUp',
+    'fa-arrow-down':         'ArrowDown',
+    'fa-ban':                'Ban',
+    'fa-broom':              'Trash2',       # closest semantic match
+    'fa-calendar-alt':       'CalendarDays',
+    'fa-database':           'Database',
+    'fa-door-open':          'DoorOpen',
+    'fa-download':           'Download',
+    'fa-exchange-alt':       'ArrowLeftRight',
+    'fa-file-image':         'FileImage',
+    'fa-lock':               'Lock',
+    'fa-magic':              'Sparkles',
+    'fa-print':              'Printer',
+    'fa-sticky-note':        'StickyNote',
+    'fa-sync':               'RefreshCw',
+    'fa-tag':                'Tag',
+    'fa-trash':              'Trash2',
+    'fa-user-ninja':         'UserRound',
+    'fa-user-tie':           'UserRound',
+    'fa-video':              'Video',
 }
 
 # Skip modifiers — not real icon names