Housing Decor Guide

### Added
- House tab redesigned as a Decorator Profile dashboard:
  - Tier-based decorator title using Blizzard's housing achievement names
    up to 500 (Score a Decor, Casual Collector, Well-Travelled Collection,
    Fully Furnished), then extended with Vamoose-original ranks (Decor
    Maven 750, Decor Master 1000, Grand Curator 1500, Legendary Decorator
    2000). Vamoose ranks are marked with an asterisk and footnote.
  - Progression line shows previous, current, and next rank with the
    exact item count to rank up.
  - Style fingerprint: top five Style/Faction tags from your collected
    items with collected count, total count, and completion %.
  - Closest-to-Complete cards: three subcategories ranked by smallest
    gap to 100%. Click jumps to the Preview tab.
  - Trophy shelf: collected unique-trophy items + Preyseeker hunter
    trophies (effigies and busts), uniques first then prey, with hover
    tooltips for each.
  - Featured of the Week: one item from your collection rotates each
    week. Shows model icon, name, source, and zone.
  - Source and Expansion donut charts: per-category breakdown built
    from 90 triangle wedges per donut for smooth edges, with masked
    circular hole. Source colours match the new palette.
  - Hero panel rebuilt with Blizzard's housing-dashboard fillbar
    atlases: chest-icon level badge, themed XP bar, level pip markers
    that gild as you cross thresholds, MAX/Next callouts.
- Title-bar level badge now animates: chest icon with the level number,
  with a sparkle flipbook celebration that plays three times on first
  open to draw attention to the click target. Hover tooltip says
  "Click for House Stats".
- Preview tab detail block reworked:
  - Big bold item name with horizontal divider underneath.
  - Expansion accent right-aligned on the title row in the expansion's
    own colour. Reads from the live in-game catalog tag so re-themed
    items get the correct expansion bucket.
  - Source line(s) consolidated. Primary source first; alternate source
    indented underneath with a curved arrow icon to chain them visually.
    Vendor name renders as a clickable cyan hyperlink that jumps to the
    matching Acquire row.
  - Vendor cost shown inline next to the vendor name with currency or
    item icons. Long currency names no longer overflow the line.
  - Cart buttons (add / remove) inline next to the vendor cost.
  - Combined Collected and Placement on a single row, mirrored on the
    Not Collected state.
  - First-acquisition XP bonus shown for uncollected items with the
    house-XP icon.
  - Stored count uses Blizzard's house-chest atlas next to the number.
  - Editable note panel on the right with subtle gold border and
    autosave on focus loss.
  - Palette icon (housing-dyable-palette-icon) appears next to the item
    name for dyeable items. Replaces the old Dyeable line.
  - Tags filtered to Style and Faction/Culture only. Drops Blizzard's
    noun-list junk like cup, cups, mug, mugs, tankard.
  - Source-type colours applied to gate chips on Acquire-row items.
- Source-type metadata unified into a single CONFIG.SOURCE_TYPES table.
  Each entry carries display name, short label, colour, atlas, view
  flags, acquirable flag, and synthetic flag in one place. Reputation,
  Endeavor, and Gold Only promoted to first-class synthetic source
  types so they're surfaced and coloured the same way as Blizzard's
  source types in dropdowns and stats.
- Preview tab destroyable indicator moved out of the row column and
  into the detail block as a small icon on the Collected line.

### Fixed
- Source breakdown for newly-added items (Void Elf Scribe's Desk,
  Decorative Dornogal Opal): items with empty AllDecorDB source data
  are now classified as Vendor at runtime if they exist in vendor
  data. Previously they showed up under Unknown.
- Expansion bucketing for items mistagged in AllDecorDB (Vanquisher
  Trophies). Now uses the live in-game data tags so the expansion
  matches Blizzard's filter UI exactly.
- Stored copy count now sums across base item + all dye variants. Was
  showing only the base count, often two or three lower than Blizzard's
  tooltip.
- House Level XP bar pip markers now render at every level boundary
  including the maximum level, gilding as you cross each threshold.
- Preview tab detail block correctly shows the size tag on the category
  line and the Style/Faction tags on the Tags line.