feat: enrichment fallback via direct parcel details endpoint

PROBLEM:
For no-geometry parcels (and many geometry parcels without application
IDs), CATEGORIE_FOLOSINTA was always '-' because:
1. fetchImmAppsByImmovable returned no apps (no applicationId)
2. Without appId, fetchParcelFolosinte was skipped entirely
3. No fallback existed

DISCOVERY (from eTerra UI investigation):
The endpoint /api/immovable/details/parcels/list/{wp}/{pk}/{page}/{size}
returns parcel use categories DIRECTLY — no applicationId needed.
Example: [{useCategory:'arabil', intravilan:'Necunoscut', parcelPk:17753903}]

FIX:
- After the app-based CATEGORIE_FOLOSINTA attempt, if result is still '-',
  fall back to fetchImmovableParcelDetails (the direct endpoint)
- formatCategories now handles both API formats:
  - App-based: categorieFolosinta + suprafata fields
  - Direct: useCategory field (no area — shows category name only)
- When direct endpoint provides area=0, format shows just the category
  name without ':0' (e.g. 'arabil; faneata' instead of 'arabil:0; faneata:0')
- Also picks up intravilan from direct endpoint if app-based was empty
- Fixed fetchImmovableParcelDetails default size: 1 → 20 (one immovable
  can have multiple parcels, e.g. IE 25332 has 2: arabil + faneata)
- Results are cached in folCache to avoid duplicate requests

src/modules/parcel-sync/services/eterra-client.ts

@@ -362,9 +362,7 @@ export class EterraClient {
           await sleep(500); // small delay before retry with smaller page
           continue;
         }
-        throw new Error(
-          `Failed to fetch layer ${layer.name}: ${cause}`,
-        );
+        throw new Error(`Failed to fetch layer ${layer.name}: ${cause}`);
       }
 
       const features = data.features ?? [];
@@ -504,7 +502,7 @@ export class EterraClient {
     workspaceId: string | number,
     immovableId: string | number,
     page = 1,
-    size = 1,
+    size = 20,
   ): Promise<any[]> {
     const url = `${BASE_URL}/api/immovable/details/parcels/list/${workspaceId}/${immovableId}/${page}/${size}`;
     return this.getRawJson(url);