feat: remove TimescaleDB, dead PG stores, and storage feature flags

Complete the ClickHouse migration by removing all PostgreSQL analytics
code. PostgreSQL now serves only RBAC, config, and audit — all
observability data is exclusively in ClickHouse.

- Delete 6 dead PostgreSQL store classes (executions, stats, diagrams,
  events, metrics, metrics-query) and 2 integration tests
- Delete RetentionScheduler (ClickHouse TTL handles retention)
- Remove all 7 cameleer.storage.* feature flags from application.yml
- Remove all @ConditionalOnProperty from ClickHouse beans in StorageBeanConfig
- Consolidate 14 Flyway migrations (V1-V14) into single clean V1 with
  only RBAC/config/audit tables (no TimescaleDB, no analytics tables)
- Switch from timescale/timescaledb-ha:pg16 to postgres:16 everywhere
  (docker-compose, deploy/postgres.yaml, test containers)
- Remove TimescaleDB check and /metrics-pipeline from DatabaseAdminController
- Set clickhouse.enabled default to true

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

cameleer3-server-app/src/test/java/com/cameleer3/server/app/AbstractPostgresIT.java

@@ -8,21 +8,17 @@ import org.springframework.test.context.DynamicPropertyRegistry;
 import org.springframework.test.context.DynamicPropertySource;
 import org.testcontainers.clickhouse.ClickHouseContainer;
 import org.testcontainers.containers.PostgreSQLContainer;
-import org.testcontainers.utility.DockerImageName;
+
 
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 @ActiveProfiles("test")
 public abstract class AbstractPostgresIT {
 
-    private static final DockerImageName TIMESCALEDB_IMAGE =
-            DockerImageName.parse("timescale/timescaledb-ha:pg16")
-                    .asCompatibleSubstituteFor("postgres");
-
     static final PostgreSQLContainer<?> postgres;
     static final ClickHouseContainer clickhouse;
 
     static {
-        postgres = new PostgreSQLContainer<>(TIMESCALEDB_IMAGE)
+        postgres = new PostgreSQLContainer<>("postgres:16")
                 .withDatabaseName("cameleer3")
                 .withUsername("cameleer")
                 .withPassword("test");

cameleer3-server-app/src/test/java/com/cameleer3/server/app/storage/FlywayMigrationIT.java

@@ -14,23 +14,34 @@ class FlywayMigrationIT extends AbstractPostgresIT {
 
     @Test
     void allMigrationsApplySuccessfully() {
-        // Verify core tables exist
-        Integer execCount = jdbcTemplate.queryForObject(
-                "SELECT COUNT(*) FROM executions", Integer.class);
-        assertEquals(0, execCount);
-
-        Integer procCount = jdbcTemplate.queryForObject(
-                "SELECT COUNT(*) FROM processor_executions", Integer.class);
-        assertEquals(0, procCount);
-
+        // Verify RBAC tables exist
         Integer userCount = jdbcTemplate.queryForObject(
                 "SELECT COUNT(*) FROM users", Integer.class);
         assertEquals(0, userCount);
 
-        // Verify continuous aggregates exist
-        Integer caggCount = jdbcTemplate.queryForObject(
-                "SELECT COUNT(*) FROM timescaledb_information.continuous_aggregates",
-                Integer.class);
-        assertEquals(4, caggCount);
+        Integer roleCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM roles", Integer.class);
+        assertEquals(4, roleCount); // AGENT, VIEWER, OPERATOR, ADMIN
+
+        Integer groupCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM groups", Integer.class);
+        assertEquals(1, groupCount); // Admins
+
+        // Verify config/audit tables exist
+        Integer configCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM server_config", Integer.class);
+        assertEquals(0, configCount);
+
+        Integer auditCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM audit_log", Integer.class);
+        assertEquals(0, auditCount);
+
+        Integer appConfigCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM application_config", Integer.class);
+        assertEquals(0, appConfigCount);
+
+        Integer appSettingsCount = jdbcTemplate.queryForObject(
+                "SELECT COUNT(*) FROM app_settings", Integer.class);
+        assertEquals(0, appSettingsCount);
     }
 }

cameleer3-server-app/src/test/java/com/cameleer3/server/app/storage/PostgresExecutionStoreIT.java

@@ -1,98 +0,0 @@
-package com.cameleer3.server.app.storage;
-
-import com.cameleer3.server.app.AbstractPostgresIT;
-import com.cameleer3.server.core.storage.ExecutionStore;
-import com.cameleer3.server.core.storage.ExecutionStore.ExecutionRecord;
-import com.cameleer3.server.core.storage.ExecutionStore.ProcessorRecord;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-
-import java.time.Instant;
-import java.util.List;
-import java.util.Optional;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-class PostgresExecutionStoreIT extends AbstractPostgresIT {
-
-    @Autowired
-    ExecutionStore executionStore;
-
-    @Test
-    void upsertAndFindById() {
-        Instant now = Instant.now();
-        ExecutionRecord record = new ExecutionRecord(
-                "exec-1", "route-a", "agent-1", "app-1",
-                "COMPLETED", "corr-1", "exchange-1",
-                now, now.plusMillis(100), 100L,
-                null, null, null,
-                "REGULAR", null, null, null, null, null,
-                null, null, null, null, null, null, null, false, false);
-
-        executionStore.upsert(record);
-        Optional<ExecutionRecord> found = executionStore.findById("exec-1");
-
-        assertTrue(found.isPresent());
-        assertEquals("exec-1", found.get().executionId());
-        assertEquals("COMPLETED", found.get().status());
-        assertEquals("REGULAR", found.get().engineLevel());
-    }
-
-    @Test
-    void upsertDeduplicatesByExecutionId() {
-        Instant now = Instant.now();
-        ExecutionRecord first = new ExecutionRecord(
-                "exec-dup", "route-a", "agent-1", "app-1",
-                "RUNNING", null, null, now, null, null, null, null, null,
-                null, null, null, null, null, null,
-                null, null, null, null, null, null, null, false, false);
-        ExecutionRecord second = new ExecutionRecord(
-                "exec-dup", "route-a", "agent-1", "app-1",
-                "COMPLETED", null, null, now, now.plusMillis(200), 200L, null, null, null,
-                "COMPLETE", null, null, null, null, null,
-                null, null, null, null, null, null, null, false, false);
-
-        executionStore.upsert(first);
-        executionStore.upsert(second);
-
-        Optional<ExecutionRecord> found = executionStore.findById("exec-dup");
-        assertTrue(found.isPresent());
-        assertEquals("COMPLETED", found.get().status());
-        assertEquals(200L, found.get().durationMs());
-    }
-
-    @Test
-    void upsertProcessorsAndFind() {
-        Instant now = Instant.now();
-        ExecutionRecord exec = new ExecutionRecord(
-                "exec-proc", "route-a", "agent-1", "app-1",
-                "COMPLETED", null, null, now, now.plusMillis(50), 50L, null, null, null,
-                "COMPLETE", null, null, null, null, null,
-                null, null, null, null, null, null, null, false, false);
-        executionStore.upsert(exec);
-
-        List<ProcessorRecord> processors = List.of(
-                new ProcessorRecord("exec-proc", "proc-1", "log",
-                        "app-1", "route-a", 0, null, "COMPLETED",
-                        now, now.plusMillis(10), 10L, null, null,
-                        "input body", "output body", null, null, null,
-                        null, null, null, null, null,
-                        null, null, null, null, null, null, null, null,
-                        null, null, null, null, null, null),
-                new ProcessorRecord("exec-proc", "proc-2", "to",
-                        "app-1", "route-a", 1, "proc-1", "COMPLETED",
-                        now.plusMillis(10), now.plusMillis(30), 20L, null, null,
-                        null, null, null, null, null,
-                        null, null, null, null, null,
-                        null, null, null, null, null, null, null, null,
-                        null, null, null, null, null, null)
-        );
-        executionStore.upsertProcessors("exec-proc", now, "app-1", "route-a", processors);
-
-        List<ProcessorRecord> found = executionStore.findProcessors("exec-proc");
-        assertEquals(2, found.size());
-        assertEquals("proc-1", found.get(0).processorId());
-        assertEquals("proc-2", found.get(1).processorId());
-        assertEquals("proc-1", found.get(1).parentProcessorId());
-    }
-}

cameleer3-server-app/src/test/java/com/cameleer3/server/app/storage/PostgresStatsStoreIT.java

@@ -1,66 +0,0 @@
-package com.cameleer3.server.app.storage;
-
-import com.cameleer3.server.app.AbstractPostgresIT;
-import com.cameleer3.server.core.search.ExecutionStats;
-import com.cameleer3.server.core.search.StatsTimeseries;
-import com.cameleer3.server.core.storage.ExecutionStore;
-import com.cameleer3.server.core.storage.ExecutionStore.ExecutionRecord;
-import com.cameleer3.server.core.storage.StatsStore;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.jdbc.core.JdbcTemplate;
-
-import java.time.Instant;
-import java.time.temporal.ChronoUnit;
-
-import static org.junit.jupiter.api.Assertions.*;
-
-class PostgresStatsStoreIT extends AbstractPostgresIT {
-
-    @Autowired StatsStore statsStore;
-    @Autowired ExecutionStore executionStore;
-    @Autowired JdbcTemplate jdbc;
-
-    @Test
-    void statsReturnsCountsForTimeWindow() {
-        // Use a unique route + statsForRoute to avoid data contamination from other tests
-        String uniqueRoute = "stats-route-" + System.nanoTime();
-        Instant base = Instant.now().minus(5, ChronoUnit.MINUTES).truncatedTo(ChronoUnit.SECONDS);
-        insertExecution("stats-1-" + uniqueRoute, uniqueRoute, "app-stats", "COMPLETED", base, 100L);
-        insertExecution("stats-2-" + uniqueRoute, uniqueRoute, "app-stats", "FAILED", base.plusSeconds(10), 200L);
-        insertExecution("stats-3-" + uniqueRoute, uniqueRoute, "app-stats", "COMPLETED", base.plusSeconds(20), 50L);
-
-        // Force continuous aggregate refresh
-        jdbc.execute("CALL refresh_continuous_aggregate('stats_1m_route', NOW() - INTERVAL '1 hour', NOW() + INTERVAL '1 hour')");
-
-        ExecutionStats stats = statsStore.statsForRoute(base.minusSeconds(60), base.plusSeconds(60), uniqueRoute, null);
-        assertEquals(3, stats.totalCount());
-        assertEquals(1, stats.failedCount());
-    }
-
-    @Test
-    void timeseriesReturnsBuckets() {
-        String uniqueRoute = "ts-route-" + System.nanoTime();
-        Instant base = Instant.now().minus(10, ChronoUnit.MINUTES).truncatedTo(ChronoUnit.MINUTES);
-        for (int i = 0; i < 10; i++) {
-            insertExecution("ts-" + i + "-" + uniqueRoute, uniqueRoute, "app-ts", "COMPLETED",
-                    base.plusSeconds(i * 30), 100L + i);
-        }
-
-        jdbc.execute("CALL refresh_continuous_aggregate('stats_1m_route', NOW() - INTERVAL '1 hour', NOW() + INTERVAL '1 hour')");
-
-        StatsTimeseries ts = statsStore.timeseriesForRoute(base.minus(1, ChronoUnit.MINUTES), base.plus(10, ChronoUnit.MINUTES), 5, uniqueRoute, null);
-        assertNotNull(ts);
-        assertFalse(ts.buckets().isEmpty());
-    }
-
-    private void insertExecution(String id, String routeId, String applicationId,
-                                  String status, Instant startTime, long durationMs) {
-        executionStore.upsert(new ExecutionRecord(
-                id, routeId, "agent-1", applicationId, status, null, null,
-                startTime, startTime.plusMillis(durationMs), durationMs,
-                status.equals("FAILED") ? "error" : null, null, null,
-                null, null, null, null, null, null,
-                null, null, null, null, null, null, null, false, false));
-    }
-}