chore(photon): add type safety

src/structures/interfaces/photon-response.interface.ts

+export interface PhotonPoints {
+  geometry: {
+    coordinates: number[];
+    type: string;
+  };
+  type: string;
+  properties: {
+    osm_id: number;
+    osm_type: string;
+    extent?: number[];
+    country: string;
+    osm_key: string;
+    osm_value: string;
+    name?: string;
+    state: string;
+    city?: string;
+    postcode?: string;
+  };
+}

src/structures/structures.controller.ts

@@ -37,6 +37,7 @@ import { depRegex } from './common/regex';
 import { CreateStructureDto } from './dto/create-structure.dto';
 import { QueryStructure } from './dto/query-structure.dto';
 import { UpdateStructureDto } from './dto/update-structure.dto';
+import { PhotonPoints } from './interfaces/photon-response.interface';
 import { Structure, StructureDocument } from './schemas/structure.schema';
 import { StructuresService } from './services/structures.service';
 
@@ -67,7 +68,7 @@ export class StructuresController {
       .then(async (res) => res.data.features)
       .then((data) =>
         data.filter(
-          (cityPoint) =>
+          (cityPoint: PhotonPoints) =>
             /* check if query sting = postcode 
                      OR query string = city (without hyphens and diacritics)
                      OR query string = name (in 2 cases, Charly et Rochetaillée-sur-saône, the city name is in the name field and the city field is missing) */