fix: sort ClickHouse migration scripts by numeric version prefix

Alphabetical sort put V10/V11 before V2-V9 ("V11" < "V1_" in ASCII),
causing the route_diagrams projection to run before the table existed.

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

cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/ClickHouseSchemaInitializer.java

@@ -35,7 +35,17 @@ public class ClickHouseSchemaInitializer {
             PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
             Resource[] scripts = resolver.getResources("classpath:clickhouse/*.sql");
 
-            Arrays.sort(scripts, Comparator.comparing(Resource::getFilename));
+            // Sort by numeric version prefix (V1, V2, ..., V10, V11) — not alphabetically
+            Arrays.sort(scripts, Comparator.comparingInt(r -> {
+                String name = r.getFilename();
+                if (name != null && name.startsWith("V")) {
+                    int end = name.indexOf('_');
+                    if (end > 1) {
+                        try { return Integer.parseInt(name.substring(1, end)); } catch (NumberFormatException ignored) {}
+                    }
+                }
+                return Integer.MAX_VALUE;
+            }));
 
             for (Resource script : scripts) {
                 String sql = script.getContentAsString(StandardCharsets.UTF_8);