fix(geoportal): building labels C1/C2 — simpler expression + minzoom 16

Previous index-of expression wasn't rendering. Simplified to use
filter with index-of on dash + slice from dash position.
Also lowered minzoom from 17 to 16.

Added diagnostic log in enrichment for building cross-ref count
to debug HAS_BUILDING=0 cases.

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

src/modules/geoportal/components/map-viewer.tsx

@@ -440,28 +440,28 @@ export const MapViewer = forwardRef<MapViewerHandle, MapViewerProps>(
         map.addLayer({ id: LAYER_IDS.cladiriLine, type: "line", source: SOURCES.cladiri, "source-layer": SOURCES.cladiri, minzoom: 14,
           paint: { "line-color": "#1e3a5f", "line-width": 0.6 } });
         // Building body labels (C1, C2...) — only at high zoom to avoid clutter
-        map.addLayer({ id: LAYER_IDS.cladiriLabel, type: "symbol", source: SOURCES.cladiri, "source-layer": SOURCES.cladiri, minzoom: 17,
+        // cadastral_ref format: "77102-C1" → show "C1"
+        // Uses regex-like approach: if contains "-", show everything after last "-"
+        map.addLayer({ id: LAYER_IDS.cladiriLabel, type: "symbol", source: SOURCES.cladiri, "source-layer": SOURCES.cladiri, minzoom: 16,
+          filter: ["all",
+            ["has", "cadastral_ref"],
+            ["!=", ["index-of", "-", ["coalesce", ["get", "cadastral_ref"], ""]], -1],
+          ],
           layout: {
-            "text-field": [
-              "case",
-              // Extract body suffix: "77102-C1" → "C1", "77102-C2" → "C2"
-              ["has", "cadastral_ref"],
-              ["case",
-                ["!=", ["index-of", "-C", ["get", "cadastral_ref"]], -1],
-                ["slice", ["get", "cadastral_ref"], ["+", ["index-of", "-C", ["get", "cadastral_ref"]], 1]],
-                "" // no "-C" suffix → no label
-              ],
-              ""
+            "text-field": ["slice",
+              ["coalesce", ["get", "cadastral_ref"], ""],
+              ["+", ["index-of", "-", ["coalesce", ["get", "cadastral_ref"], ""]], 1],
             ],
             "text-font": ["Noto Sans Regular"],
-            "text-size": 10,
+            "text-size": 11,
             "text-anchor": "center",
-            "text-allow-overlap": false,
+            "text-allow-overlap": true,
+            "text-ignore-placement": false,
           },
           paint: {
-            "text-color": "#1e40af",
+            "text-color": "#1e3a8a",
             "text-halo-color": "#ffffff",
-            "text-halo-width": 1.2,
+            "text-halo-width": 1.5,
           },
         });
 

src/modules/parcel-sync/services/enrich-service.ts

@@ -298,6 +298,10 @@ export async function enrichFeatures(
       if (baseRef) add(baseRef);
     }
 
+    console.log(
+      `[enrich] siruta=${siruta}: ${terenuri.length} terenuri, ${cladiri.length} cladiri in DB, ${buildingMap.size} chei in buildingMap`,
+    );
+
     // ── Fetch immovable list from eTerra ──
     push({ phase: "Descărcare listă imobile", downloaded: 0 });
     const immovableListById = new Map<string, any>();