fix: bool-on props broken in generic setter dispatcher

parseAttributeValue('') returns '' (falsy) for boolean-present
attributes, making setDraggable(false), setInteractive(''), etc.
not work. Now looks up the prop spec from PROPS and passes
val !== null (true/false) when kind is 'bool-on'.

Fixes: leaflet-marker, leaflet-tile-layer-wms, leaflet-image-overlay,
leaflet-video-overlay, leaflet-svg-overlay, leaflet-geojson

src/components/leaflet-geojson.ts

@@ -66,7 +66,9 @@ export class LeafletGeoJSON extends withProps(HTMLElement, PROPS) {
     } else {
       const propName = PROP_BY_ATTR.get(name);
       if (!propName) return;
-      this.#obj.setStyle({ [propName]: val } as PathOptions);
+      const spec = PROPS[propName as keyof typeof PROPS];
+      const styleVal = spec.kind === 'bool-on' ? val !== null : val;
+      this.#obj.setStyle({ [propName]: styleVal } as PathOptions);
     }
   }
 }

src/components/leaflet-image-overlay.ts

@@ -61,7 +61,9 @@ export class LeafletImageOverlay extends withProps(HTMLElement, PROPS) {
       const setter =
         `set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof ImageOverlay;
       if (typeof this.#obj[setter] === 'function') {
-        (this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
+        const spec = PROPS[propName as keyof typeof PROPS];
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
+        (this.#obj[setter] as (v: unknown) => void)(value);
       }
     }
   }

src/components/leaflet-marker.ts

@@ -57,7 +57,9 @@ export class LeafletMarker extends withProps(HTMLElement, PROPS) {
       if (!propName) return;
       const setter = `set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof Marker;
       if (typeof this.#obj[setter] === 'function') {
-        (this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
+        const spec = PROPS[propName as keyof typeof PROPS];
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
+        (this.#obj[setter] as (v: unknown) => void)(value);
       }
     }
   }

src/components/leaflet-svg-overlay.ts

@@ -57,7 +57,9 @@ export class LeafletSVGOverlay extends withProps(HTMLElement, PROPS) {
       const setter =
         `set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof SVGOverlay;
       if (typeof this.#obj[setter] === 'function') {
-        (this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
+        const spec = PROPS[propName as keyof typeof PROPS];
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
+        (this.#obj[setter] as (v: unknown) => void)(value);
       }
     }
   }

src/components/leaflet-tile-layer-wms.ts

@@ -55,11 +55,14 @@ export class LeafletTileLayerWMS extends withProps(HTMLElement, PROPS) {
       if (!propName) return;
       const setter =
         `set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof TileLayer.WMS;
+      const spec = PROPS[propName as keyof typeof PROPS];
       if (typeof this.#obj[setter] === 'function') {
-        (this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
+        (this.#obj[setter] as (v: unknown) => void)(value);
       } else {
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
         (this.#obj.setParams as unknown as (params: Record<string, unknown>) => void)({
-          [propName]: parseAttributeValue(val),
+          [propName]: value,
         });
       }
     }

src/components/leaflet-video-overlay.ts

@@ -62,7 +62,9 @@ export class LeafletVideoOverlay extends withProps(HTMLElement, PROPS) {
       const setter =
         `set${propName.charAt(0).toUpperCase()}${propName.slice(1)}` as keyof VideoOverlay;
       if (typeof this.#obj[setter] === 'function') {
-        (this.#obj[setter] as (v: unknown) => void)(parseAttributeValue(val));
+        const spec = PROPS[propName as keyof typeof PROPS];
+        const value = spec.kind === 'bool-on' ? val !== null : parseAttributeValue(val);
+        (this.#obj[setter] as (v: unknown) => void)(value);
       }
     }
   }