feat: add route_catalog table to ClickHouse schema

cameleer-server-app/src/main/resources/clickhouse/init.sql

@@ -385,3 +385,16 @@ CREATE TABLE IF NOT EXISTS usage_events (
 ENGINE = MergeTree()
 ORDER BY (tenant_id, timestamp, environment, username, normalized)
 TTL toDateTime(timestamp) + INTERVAL 90 DAY;
+
+-- ── Route Catalog ──────────────────────────────────────────────────────
+
+CREATE TABLE IF NOT EXISTS route_catalog (
+    tenant_id        LowCardinality(String) DEFAULT 'default',
+    environment      LowCardinality(String) DEFAULT 'default',
+    application_id   LowCardinality(String),
+    route_id         LowCardinality(String),
+    first_seen       DateTime64(3),
+    last_seen        DateTime64(3)
+)
+ENGINE = ReplacingMergeTree(last_seen)
+ORDER BY (tenant_id, environment, application_id, route_id);