perf(geoportal): zoom-dependent UAT simplification + Martin config + tile cache

PostGIS:
- gis_uats view: ST_SimplifyPreserveTopology(geom, 50) + only name/county/siruta
- gis_uats_simple view: ST_SimplifyPreserveTopology(geom, 500) for z0-z9

Martin config (martin.yaml):
- Explicit source definitions (auto_publish: false)
- gis_uats_simple (z0-9): only name+siruta, 500m simplified geometry
- gis_uats (z0-14): name+siruta+county, 50m simplified
- gis_terenuri (z10-18): object_id+siruta+cadastral_ref+area_value+layer_id
- gis_cladiri (z12-18): same properties
- 24h cache headers on all tiles

MapViewer:
- Dual UAT sources: simplified (z0-9) + detailed (z9+) with seamless handoff
- Zoom-interpolated paint: thin lines at z5, thicker at z12
- UAT labels only z9+, fill opacity z-interpolated (0.03→0.08)

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

prisma/gisuat-postgis-setup.sql

@@ -158,20 +158,29 @@ WHERE geometry IS NOT NULL AND geom IS NULL;
 CREATE INDEX IF NOT EXISTS gis_uat_geom_idx
   ON "GisUat" USING GIST (geom);
 
--- 8. Martin/QGIS-friendly view
+-- 8. Martin/QGIS-friendly view (moderate simplification — 50m tolerance)
 CREATE OR REPLACE VIEW gis_uats AS
 SELECT
   siruta,
   name,
   county,
-  "workspacePk"  AS workspace_pk,
-  "areaValue"    AS area_value,
-  geom
+  ST_SimplifyPreserveTopology(geom, 50) AS geom
+FROM "GisUat"
+WHERE geom IS NOT NULL;
+
+-- 9. Simplified view for low zoom levels (z5-z9) — 500m tolerance
+CREATE OR REPLACE VIEW gis_uats_simple AS
+SELECT
+  siruta,
+  name,
+  ST_SimplifyPreserveTopology(geom, 500) AS geom
 FROM "GisUat"
 WHERE geom IS NOT NULL;
 
 -- =============================================================================
--- Done! Martin will auto-discover gis_uats at http://localhost:3010/gis_uats
+-- Done! Martin serves these views as vector tiles:
+--   - gis_uats        (moderate detail, z9+)
+--   - gis_uats_simple (coarse overview, z5-z9)
 -- QGIS: PostgreSQL -> 10.10.10.166:5432 / architools_db -> gis_uats view
 -- SRID: 3844 (Stereo70)
 -- =============================================================================