Refine weapon progression and icon controls

docs/DESIGN_SYSTEM.md

@@ -772,6 +772,13 @@ same change. Both shared choice patterns expose explicit selection, hover,
 pressed, focus-visible, disabled, empty/all, responsive, and 44-pixel
 mobile-target states so modules do not reimplement them.
 
+Numeric inputs inside ISAC use overwrite-first focus behavior: focusing an
+enabled `type="number"` control selects its complete current value so a
+contributor can immediately type a replacement instead of appending to a
+default zero. This behavior belongs to the shared ISAC layout boundary and must
+not be reimplemented in individual modules. Disabled numeric controls remain
+unfocusable and unchanged.
+
 `SegmentedChoice` supports two restrained density variants. Icon-only segments
 may omit visible text when a canonical, unambiguous game icon exists; they must
 retain an accessible label and hover title. Text-only segments may omit the
@@ -842,6 +849,28 @@ dense segmented controls. On desktop, icon-only Gear slot segments are square
 record-name input receives the dominant width. Increase those cells to square
 44-pixel targets at mobile sizes without reintroducing visible slot text.
 
+Weapon-category editing follows the same compact icon-rail treatment: Shotgun,
+Rifle, MMR, AR, LMG, and SMG use their canonical weapon silhouettes in square
+32-pixel desktop cells and 44-pixel mobile cells, with accessible names and
+hover titles retained. Exotic remains an independent icon-backed status because
+an Exotic weapon must also retain its underlying weapon category. Weapon
+Damage Type follows the same icon-only treatment when canonical Blast, Pierce,
+and Shredding marks are available. Exotic status is a single square checkbox
+whose icon, orange rail, and background show its checked state; no visible
+“Exotic weapon” label is repeated inside the control. Weapon registry rows show
+both the category silhouette and, when applicable, the Exotic mark alongside
+the textual class for rapid scanning.
+
+Weapon Tier Progression begins at the selected Native Tier. Lower tier cards
+remain visible for orientation but are disabled, desaturated, and explicitly
+labeled unavailable; their values are neither required nor persisted. Each
+available tier has one Damage range labeled with the selected damage-type icon
+and one shared Core range for Firepower, Toughness, and Engineering, represented
+by all three primary-attribute icons. Registry completeness compares configured
+tiers with the number possible from the weapon’s Native Tier. Archive Weapon
+uses the standard separated ISAC destructive-action control on the left side of
+the editor action band.
+
 Root-level static PNGs are interface icons and use content-fitted transparent
 bounds. Run `npm run assets:trim-icons` after adding or replacing them. The
 normalizer trims fully transparent padding, restores a two-pixel transparent