v0.29.0 — Ramble box, dark-mode toggle, pantry pull reasons

- #10 Ramble box: new /ramble sticky-note board (post/pin/archive/delete),
  ported from FMB. New Ramble model + migration, /api/rambles routes, nav entry.
- #6 Dark-mode toggle: sun/moon button in the top bar (dark palette already
  existed in CSS, just had no control).
- #9 Pantry pull reason: structured disposition (Immediate use / Preserved /
  Gave away / Waste) on ItemLog.reason, added to single + bulk pull dialogs
  and the audit payload. New migration.
- #2 Suggestions: drop the stale white-card wrapper; render SuggestionsPanel
  bare like FMB so it's readable and thumbnails show.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

prisma/schema.prisma

@@ -72,6 +72,20 @@ model AuditEvent {
   @@index([createdAt])
 }
 
+// Ramble box — sticky-note brain dump for stray homestead thoughts ("move the
+// rhubarb", "oil the chainsaw"). Not a Task and not a Location leaf; just a
+// free-text jot you pin, archive (soft), or delete (hard). Ported from FMB.
+model Ramble {
+  id         String    @id @default(cuid())
+  body       String
+  pinned     Boolean   @default(false)
+  archivedAt DateTime? // soft-archive; null = active
+  createdAt  DateTime  @default(now())
+  updatedAt  DateTime  @updatedAt
+
+  @@index([pinned, archivedAt, createdAt])
+}
+
 // ---------------------------------------------------------------------------
 // Location — shared hierarchical place tree (garden areas, buildings, rooms,
 // storage bins). The spine for Garden, Inventory, and Pantry. Plants/items/
@@ -437,6 +451,7 @@ model ItemLog {
   notes     String?
   cost      Decimal?    @db.Decimal(10, 2)
   amount    Decimal?    @db.Decimal(10, 2) // quantity consumed, for USED logs (same unit as the item)
+  reason    String?     // disposition for USED logs: consumed | preserved | gifted | waste (see pantry/core.ts)
   actorId   String?
   createdAt DateTime    @default(now())