Function styleRulesToPaint

styleRulesToPaint(
    styleRules: GeoJSONStyleRule[],
    defaultStyle: FlatStyle,
    geometryType: "circle" | "line" | "fill" | "fill-extrusion",
    layerId?: string,
): Record<string, unknown>
Converts GeoLeaf styleRules + defaultStyle to MapLibre data-driven paint expressions.

For each paint property that varies across rules, builds a ["case", cond1, val1, cond2, val2, ..., defaultVal] expression.

If defaultStyle.expressionPaint is set, those native MapLibre paint properties are injected last, overriding any GeoLeaf-derived or case-expression values for the same keys.
Parameters
- styleRules: GeoJSONStyleRule[]
  Array of { when, style } rules from the profile
- defaultStyle: FlatStyle
  Default style (flat) applied when no rule matches
- geometryType: "circle" | "line" | "fill" | "fill-extrusion"
  Target geometry type ('fill' | 'line' | 'circle' | 'fill-extrusion')
- OptionallayerId: string
  Layer the paint is built for; used to resolve per-layer style overrides. Omitted, only the profile-level defaults apply.
Returns Record<string, unknown>
Paint object with expression values where needed
- Defined in src/adapters/maplibre/maplibre-style-converter.ts:533