feat(mood): revise factor + tag catalog (migration 0126)

Tighten the operator-finalised mood catalog to three RATED factors and a
trimmed default BINARY tag set.

- Seed `factor_sadness` (RATED, 1..5, inverse — higher = worse) under the
  `factors` category, with its label in all six locales and a CloudRain
  glyph. The RATED set is now work / sleep quality / sadness.
- Retire `factor_conflict`, `factor_family`, `factor_social`,
  `factor_stress`: flip each to BINARY and deactivate. The catalog rows
  stay so historical entries still resolve their labels (the insights read
  joins by id without an active filter); they just leave the RATED set and
  the default picker.
- Trim the default BINARY tag set roughly in half: deactivate the
  sleep-tag category (now covered by the sleep-quality slider), the mood
  level restatements, the nutrition long-tail, and low-signal day-type
  tags. Kept rows are the high-signal, correlatable tags. Nothing is
  deleted; inactive rows still resolve labels for existing entries.

Reference-data only — no schema change, idempotent upsert + closed-key
updates, no per-user data touched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/components/mood/mood-tag-icons.ts

@@ -10,6 +10,7 @@ import {
   CheckCircle,
   Clock,
   CloudMoon,
+  CloudRain,
   CloudSun,
   Dumbbell,
   Film,
@@ -66,6 +67,7 @@ const MOOD_TAG_ICONS: Record<string, LucideIcon> = {
   CheckCircle,
   Clock,
   CloudMoon,
+  CloudRain,
   CloudSun,
   Dumbbell,
   Film,