feat(agent): refine ready state actions

features/agent/ui-envelope/map-actions.ts

@@ -9,6 +9,7 @@ export type TrustedMapAction =
       type: "zoom_to_map";
       center: [number, number];
       zoom?: number;
+      durationMs?: number;
       fallbackText?: string;
     }
   | {
@@ -49,6 +50,7 @@ export function toTrustedMapAction(action: string, params: unknown, fallbackText
     }
 
     const zoom = numberValue(params.zoom);
+    const durationMs = numberValue(params.duration_ms ?? params.durationMs);
     if (center[0] < -180 || center[0] > 180 || center[1] < -90 || center[1] > 90 ||
       (zoom !== undefined && (zoom < 0 || zoom > 24))) return null;
 
@@ -56,6 +58,7 @@ export function toTrustedMapAction(action: string, params: unknown, fallbackText
       type: "zoom_to_map",
       center,
       zoom,
+      ...(durationMs === undefined ? {} : { durationMs }),
       fallbackText
     };
   }
@@ -91,22 +94,39 @@ export function toTrustedMapAction(action: string, params: unknown, fallbackText
 }
 
 function parseCenter(params: Record<string, unknown>): [number, number] | null {
+  const sourceCrs = params.source_crs ?? params.sourceCrs;
+
   if (Array.isArray(params.center) && params.center.length >= 2) {
     const lng = numberValue(params.center[0]);
     const lat = numberValue(params.center[1]);
-    return lng === undefined || lat === undefined ? null : [lng, lat];
+    return lng === undefined || lat === undefined ? null : normalizeCenter(lng, lat, sourceCrs);
   }
 
   const rawCoordinate = params.coordinate ?? params.coordinates;
   if (Array.isArray(rawCoordinate) && rawCoordinate.length >= 2) {
     const lng = numberValue(rawCoordinate[0]);
     const lat = numberValue(rawCoordinate[1]);
-    return lng === undefined || lat === undefined ? null : [lng, lat];
+    return lng === undefined || lat === undefined ? null : normalizeCenter(lng, lat, sourceCrs);
   }
 
   const lng = numberValue(params.lng ?? params.lon ?? params.longitude ?? params.x);
   const lat = numberValue(params.lat ?? params.latitude ?? params.y);
-  return lng === undefined || lat === undefined ? null : [lng, lat];
+  return lng === undefined || lat === undefined ? null : normalizeCenter(lng, lat, sourceCrs);
+}
+
+function normalizeCenter(x: number, y: number, sourceCrs: unknown): [number, number] {
+  if (sourceCrs === "EPSG:3857") {
+    return webMercatorToLngLat(x, y);
+  }
+
+  return [x, y];
+}
+
+function webMercatorToLngLat(x: number, y: number): [number, number] {
+  const lng = (x / WEB_MERCATOR_RADIUS) * (180 / Math.PI);
+  const lat = (2 * Math.atan(Math.exp(y / WEB_MERCATOR_RADIUS)) - Math.PI / 2) * (180 / Math.PI);
+
+  return [lng, lat];
 }
 
 function stringValue(value: unknown) {
@@ -145,6 +165,7 @@ const LEGACY_LOCATE_ACTION_LAYERS: Record<string, string> = {
 
 const RESULT_REF_PATTERN = /^res-[A-Za-z0-9_-]{8,128}$/;
 const ALLOWED_LAYER_IDS = new Set(["junctions", "pipes"]);
+const WEB_MERCATOR_RADIUS = 6378137;
 
 const LOCATE_ID_PARAM_KEYS = [
   "feature_ids",