fix: inject ClickHouse JdbcTemplate into stats-querying controllers

RouteCatalogController, RouteMetricsController, and AgentRegistrationController
had unqualified JdbcTemplate injection, receiving the PostgreSQL template
instead of ClickHouse. The stats queries silently failed (caught exception)
returning 0 counts. Added @Qualifier("clickHouseJdbcTemplate") to all three.

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

cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/AgentRegistrationController.java

@@ -71,7 +71,7 @@ public class AgentRegistrationController {
                                         Ed25519SigningService ed25519SigningService,
                                         AgentEventService agentEventService,
                                         AuditService auditService,
-                                        JdbcTemplate jdbc) {
+                                        @org.springframework.beans.factory.annotation.Qualifier("clickHouseJdbcTemplate") JdbcTemplate jdbc) {
         this.registryService = registryService;
         this.config = config;
         this.bootstrapTokenValidator = bootstrapTokenValidator;

cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/RouteCatalogController.java

@@ -43,7 +43,7 @@ public class RouteCatalogController {
 
     public RouteCatalogController(AgentRegistryService registryService,
                                    DiagramStore diagramStore,
-                                   JdbcTemplate jdbc) {
+                                   @org.springframework.beans.factory.annotation.Qualifier("clickHouseJdbcTemplate") JdbcTemplate jdbc) {
         this.registryService = registryService;
         this.diagramStore = diagramStore;
         this.jdbc = jdbc;

cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/RouteMetricsController.java

@@ -32,7 +32,7 @@ public class RouteMetricsController {
     private final StatsStore statsStore;
     private final AppSettingsRepository appSettingsRepository;
 
-    public RouteMetricsController(JdbcTemplate jdbc, StatsStore statsStore,
+    public RouteMetricsController(@org.springframework.beans.factory.annotation.Qualifier("clickHouseJdbcTemplate") JdbcTemplate jdbc, StatsStore statsStore,
                                    AppSettingsRepository appSettingsRepository) {
         this.jdbc = jdbc;
         this.statsStore = statsStore;