fix(parcel-sync): progress display stuck + numbers jumping during sync

2 bugs:
1. After Magic/base download completes, progress bar stayed stuck at
   77% because exportProgress was never updated to 'done' client-side.
   Fix: set progress to 'Finalizat' + 100% after successful blob download.

2. syncLayer overwrote the export route's weighted percentages (0-100)
   with raw feature counts (50/200), causing progress bar to jump.
   Fix: when isSubStep=true, sync writes phase/note/phaseCurrent/phaseTotal
   but preserves the parent route's downloaded/total weighted values.

src/modules/parcel-sync/components/parcel-sync-module.tsx

@@ -579,6 +579,21 @@ export function ParcelSyncModule() {
         a.click();
         a.remove();
         URL.revokeObjectURL(url);
+
+        // Mark progress as done after successful download
+        setExportProgress((prev) =>
+          prev
+            ? {
+                ...prev,
+                status: "done",
+                phase: "Finalizat",
+                downloaded: prev.total ?? 100,
+                total: prev.total ?? 100,
+                message: `Descărcare completă — ${filename}`,
+                note: undefined,
+              }
+            : null,
+        );
       } catch (error) {
         const msg = error instanceof Error ? error.message : "Eroare export";
         setExportProgress((prev) =>
@@ -863,6 +878,21 @@ export function ParcelSyncModule() {
         a.click();
         a.remove();
         URL.revokeObjectURL(url);
+
+        // Mark progress as done after successful download
+        setExportProgress((prev) =>
+          prev
+            ? {
+                ...prev,
+                status: "done",
+                phase: "Finalizat",
+                downloaded: prev.total ?? 100,
+                total: prev.total ?? 100,
+                message: `Descărcare completă — ${filename}`,
+                note: undefined,
+              }
+            : null,
+        );
       } catch (error) {
         const msg = error instanceof Error ? error.message : "Eroare export";
         setExportProgress((prev) =>