fix(test): rewrite SearchControllerIT seed to chunks + fix GET auth scope

Largest Cluster B test: seeded 10 executions via the legacy RouteExecution
shape which ChunkIngestionController silently degenerates to empty chunks,
then verified via a Postgres SELECT against a ClickHouse table. Both
failure modes addressed:
- All 10 seed payloads are now ExecutionChunk envelopes (chunkSeq=0,
  final=true, flat processors[]).
- Pipeline visibility probe is the env-scoped search REST endpoint
  (polling for the last corr-page-10 row).
- searchGet() helper was using the AGENT token; env-scoped read
  endpoints require VIEWER+, so it now uses viewerJwt (matches what
  searchPost already did).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cameleer-server-app/src/test/java/com/cameleer/server/app/controller/SearchControllerIT.java

@@ -50,22 +50,24 @@ class SearchControllerIT extends AbstractPostgresIT {
         // Execution 1: COMPLETED, short duration, no errors
         ingest("""
                 {
-                  "routeId": "search-route-1",
                   "exchangeId": "ex-search-1",
+                  "applicationId": "test-group",
+                  "instanceId": "test-agent-search-it",
+                  "routeId": "search-route-1",
                   "correlationId": "corr-alpha",
                   "status": "COMPLETED",
                   "startTime": "2026-03-10T10:00:00Z",
                   "endTime": "2026-03-10T10:00:00.050Z",
                   "durationMs": 50,
-                  "errorMessage": "",
+                  "chunkSeq": 0,
-                  "errorStackTrace": "",
+                  "final": true,
                   "processors": [
                     {
+                      "seq": 1,
                       "processorId": "proc-1",
                       "processorType": "log",
                       "status": "COMPLETED",
                       "startTime": "2026-03-10T10:00:00Z",
-                      "endTime": "2026-03-10T10:00:00.050Z",
                       "durationMs": 50,
                       "inputBody": "customer-123 order data",
                       "outputBody": "processed customer-123",
@@ -79,8 +81,10 @@ class SearchControllerIT extends AbstractPostgresIT {
         // Execution 2: FAILED with NullPointerException, medium duration
         ingest("""
                 {
-                  "routeId": "search-route-2",
                   "exchangeId": "ex-search-2",
+                  "applicationId": "test-group",
+                  "instanceId": "test-agent-search-it",
+                  "routeId": "search-route-2",
                   "correlationId": "corr-beta",
                   "status": "FAILED",
                   "startTime": "2026-03-10T12:00:00Z",
@@ -88,6 +92,8 @@ class SearchControllerIT extends AbstractPostgresIT {
                   "durationMs": 200,
                   "errorMessage": "NullPointerException in OrderService",
                   "errorStackTrace": "java.lang.NullPointerException\\n  at com.example.OrderService.process(OrderService.java:42)",
+                  "chunkSeq": 0,
+                  "final": true,
                   "processors": []
                 }
                 """);
@@ -95,15 +101,17 @@ class SearchControllerIT extends AbstractPostgresIT {
         // Execution 3: RUNNING, long duration, different time window
         ingest("""
                 {
-                  "routeId": "search-route-3",
                   "exchangeId": "ex-search-3",
+                  "applicationId": "test-group",
+                  "instanceId": "test-agent-search-it",
+                  "routeId": "search-route-3",
                   "correlationId": "corr-gamma",
                   "status": "RUNNING",
                   "startTime": "2026-03-11T08:00:00Z",
                   "endTime": "2026-03-11T08:00:01Z",
                   "durationMs": 1000,
-                  "errorMessage": "",
+                  "chunkSeq": 0,
-                  "errorStackTrace": "",
+                  "final": true,
                   "processors": []
                 }
                 """);
@@ -111,8 +119,10 @@ class SearchControllerIT extends AbstractPostgresIT {
         // Execution 4: FAILED with MyException in stack trace
         ingest("""
                 {
-                  "routeId": "search-route-4",
                   "exchangeId": "ex-search-4",
+                  "applicationId": "test-group",
+                  "instanceId": "test-agent-search-it",
+                  "routeId": "search-route-4",
                   "correlationId": "corr-delta",
                   "status": "FAILED",
                   "startTime": "2026-03-10T14:00:00Z",
@@ -120,18 +130,17 @@ class SearchControllerIT extends AbstractPostgresIT {
                   "durationMs": 300,
                   "errorMessage": "Processing failed",
                   "errorStackTrace": "com.example.MyException: something broke\\n  at com.example.Handler.handle(Handler.java:10)",
+                  "chunkSeq": 0,
+                  "final": true,
                   "processors": [
                     {
+                      "seq": 1,
                       "processorId": "proc-4",
                       "processorType": "bean",
                       "status": "FAILED",
                       "startTime": "2026-03-10T14:00:00Z",
-                      "endTime": "2026-03-10T14:00:00.300Z",
                       "durationMs": 300,
-                      "inputBody": "",
+                      "inputHeaders": {"Content-Type": "text/plain"}
-                      "outputBody": "",
-                      "inputHeaders": {"Content-Type": "text/plain"},
-                      "outputHeaders": {}
                     }
                   ]
                 }
@@ -141,28 +150,25 @@ class SearchControllerIT extends AbstractPostgresIT {
         for (int i = 5; i <= 10; i++) {
             ingest(String.format("""
                     {
-                      "routeId": "search-route-%d",
                       "exchangeId": "ex-search-%d",
+                      "applicationId": "test-group",
+                      "instanceId": "test-agent-search-it",
+                      "routeId": "search-route-%d",
                       "correlationId": "corr-page-%d",
                       "status": "COMPLETED",
                       "startTime": "2026-03-10T15:00:%02d.000Z",
                       "endTime": "2026-03-10T15:00:%02d.100Z",
                       "durationMs": 100,
-                      "errorMessage": "",
+                      "chunkSeq": 0,
-                      "errorStackTrace": "",
+                      "final": true,
                       "processors": []
                     }
                     """, i, i, i, i, i));
         }
 
-        // Verify all data is in PostgreSQL (synchronous writes)
+        // Wait for async ingestion + search indexing via REST (no raw SQL).
-        Integer count = jdbcTemplate.queryForObject(
+        // Probe the last seeded execution to avoid false positives from
-                "SELECT count(*) FROM executions WHERE route_id LIKE 'search-route-%'",
+        // other test classes that may have written into the shared CH tables.
-                Integer.class);
-        assertThat(count).isEqualTo(10);
-
-        // Wait for async search indexing (debounce + index time)
-        // Check for last seeded execution specifically to avoid false positives from other test classes
         await().atMost(30, SECONDS).untilAsserted(() -> {
             ResponseEntity<String> r = searchGet("?correlationId=corr-page-10");
             JsonNode body = objectMapper.readTree(r.getBody());
@@ -373,7 +379,9 @@ class SearchControllerIT extends AbstractPostgresIT {
     }
 
     private ResponseEntity<String> searchGet(String queryString) {
-        HttpHeaders headers = securityHelper.authHeadersNoBody(jwt);
+        // GET /api/v1/environments/*/executions/** requires VIEWER+ — use the
+        // viewer token, not the agent token (agent would get 403 FORBIDDEN).
+        HttpHeaders headers = securityHelper.authHeadersNoBody(viewerJwt);
         return restTemplate.exchange(
                 "/api/v1/environments/default/executions" + queryString,
                 HttpMethod.GET,