Describe every value kind in one table instead of spreading it over the code

A kind like colour or texture used to be spelled out in five parallel
lists, its port type, its empty value, its glyph, its label and its list
tag - 22 literal places for texture alone. core/properties/kinds.ts now
holds one row per kind and the rest is derived from it, so adding a kind
is one row. The five literal nodes collapse into literals.ts, the six
kind menus into one helper.

Number, Text, Boolean is now the one order everywhere; the variable and
port menus used to list Boolean before Text.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/core/graph/nodes/index.ts

@@ -10,7 +10,6 @@ import { Abs } from './data/Abs';
 import { Add } from './data/Add';
 import { And } from './data/And';
 import { AxisInput } from './data/AxisInput';
-import { BooleanLiteral } from './data/Boolean';
 import { Ceil } from './data/Ceil';
 import { Clamp } from './data/Clamp';
 import { Compare } from './data/Compare';
@@ -27,6 +26,7 @@ import { IsTouching } from './data/IsTouching';
 import { Join } from './data/Join';
 import { KeyIsDown } from './data/KeyIsDown';
 import { Length } from './data/Length';
+import { BooleanLiteral, ListLiteral, NumberLiteral, StringLiteral, TextureLiteral } from './data/literals';
 import { Max } from './data/Max';
 import { Min } from './data/Min';
 import { Modulo } from './data/Modulo';
@@ -36,7 +36,6 @@ import { Multiply } from './data/Multiply';
 import { NameOf } from './data/NameOf';
 import { Normalize } from './data/Normalize';
 import { Not } from './data/Not';
-import { NumberLiteral } from './data/Number';
 import { ObjectByName } from './data/ObjectByName';
 import { Or } from './data/Or';
 import { Owner } from './data/Owner';
@@ -47,10 +46,8 @@ import { Random } from './data/Random';
 import { Round } from './data/Round';
 import { Self } from './data/Self';
 import { Sqrt } from './data/Sqrt';
-import { StringLiteral } from './data/String';
 import { Substring } from './data/Substring';
 import { Subtract } from './data/Subtract';
-import { TextureLiteral } from './data/Texture';
 import { Time } from './data/Time';
 import { ToNumber } from './data/ToNumber';
 import { ToText } from './data/ToText';
@@ -60,7 +57,6 @@ import { ExpandStruct } from './data/ExpandStruct';
 import { Fill } from './data/Fill';
 import { IndexOf } from './data/IndexOf';
 import { ItemAt } from './data/ItemAt';
-import { ListLiteral } from './data/ListLiteral';
 import { SetItem } from './data/SetItem';
 import { SubList } from './data/SubList';
 import { OnAnimationFinished } from './events/OnAnimationFinished';