feat(wds): limit force sync to terenuri + cladiri only

Manual trigger now only processes sync_terenuri and sync_cladiri steps.
import_nogeom and enrich are left for the regular weekend window.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/api/eterra/weekend-sync/route.ts

@@ -157,11 +157,18 @@ export async function POST(request: Request) {
     name?: string;
     county?: string;
     priority?: number;
+    onlySteps?: string[];
   };
 
   // Trigger is handled separately — starts sync immediately
   if (body.action === "trigger") {
-    const result = await triggerForceSync();
+    const validSteps = ["sync_terenuri", "sync_cladiri", "import_nogeom", "enrich"] as const;
+    const onlySteps = body.onlySteps?.filter((s): s is (typeof validSteps)[number] =>
+      (validSteps as readonly string[]).includes(s),
+    );
+    const result = await triggerForceSync(
+      onlySteps && onlySteps.length > 0 ? { onlySteps } : undefined,
+    );
     if (!result.started) {
       return NextResponse.json(
         { error: result.reason },