fix(test): add required environmentId to agent register bodies

Registration now requires environmentId in the body (400 if missing), so
the stale register bodies were failing every downstream test that relied
on a registered agent. Affected helpers in:
  - BootstrapTokenIT (static constant + inline body)
  - JwtRefreshIT (registerAndGetTokens)
  - RegistrationSecurityIT (registerAgent)
  - SseSigningIT (registerAgentWithAuth)
  - AgentSseControllerIT (registerAgent helper)

Also in JwtRefreshIT / RegistrationSecurityIT, the "access token can reach
a protected endpoint" tests were hitting env-scoped read endpoints that
now require VIEWER+. Redirected both to the AGENT-role heartbeat endpoint
— it proves the token is accepted by the security filter without being
coupled to RBAC rules for reader endpoints.

JwtRefreshIT.refreshWithValidToken also dropped an isNotEqualTo assertion
that assumed sub-second iat uniqueness — HMAC JWTs with second-precision
claims are byte-identical when minted for the same subject within the
same second, so the old assertion was flaky by design.

SseSigningIT / AgentSseControllerIT still have SSE-connection timing
failures unrelated to registration — parked separately.

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

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

@@ -57,6 +57,7 @@ class AgentSseControllerIT extends AbstractPostgresIT {
                 {
                   "instanceId": "%s",
                   "applicationId": "%s",
+                  "environmentId": "default",
                   "version": "1.0.0",
                   "routeIds": ["route-1"],
                   "capabilities": {}

cameleer-server-app/src/test/java/com/cameleer/server/app/security/BootstrapTokenIT.java

@@ -29,6 +29,7 @@ class BootstrapTokenIT extends AbstractPostgresIT {
             {
               "instanceId": "bootstrap-test-agent",
               "applicationId": "test-group",
+              "environmentId": "default",
               "version": "1.0.0",
               "routeIds": [],
               "capabilities": {}
@@ -96,6 +97,7 @@ class BootstrapTokenIT extends AbstractPostgresIT {
                 {
                   "instanceId": "bootstrap-test-previous",
                   "applicationId": "test-group",
+                  "environmentId": "default",
                   "version": "1.0.0",
                   "routeIds": [],
                   "capabilities": {}

cameleer-server-app/src/test/java/com/cameleer/server/app/security/JwtRefreshIT.java

@@ -39,6 +39,7 @@ class JwtRefreshIT extends AbstractPostgresIT {
                 {
                   "instanceId": "%s",
                   "applicationId": "test-group",
+                  "environmentId": "default",
                   "version": "1.0.0",
                   "routeIds": [],
                   "capabilities": {}
@@ -79,7 +80,9 @@ class JwtRefreshIT extends AbstractPostgresIT {
         JsonNode body = objectMapper.readTree(response.getBody());
         assertThat(body.get("accessToken").asText()).isNotEmpty();
         assertThat(body.get("refreshToken").asText()).isNotEmpty();
-        assertThat(body.get("refreshToken").asText()).isNotEqualTo(refreshToken);
+        // NB: HMAC JWTs with second-precision iat/exp are byte-identical when
+        // minted for the same subject+claims within the same second, so we
+        // do not assert the new token differs from the old one.
     }
 
     @Test
@@ -154,14 +157,15 @@ class JwtRefreshIT extends AbstractPostgresIT {
         JsonNode refreshBody2 = objectMapper.readTree(refreshResponse.getBody());
         String newAccessToken = refreshBody2.get("accessToken").asText();
 
-        // Use the new access token to hit a protected endpoint accessible by AGENT role
+        // Use the new access token to hit an AGENT-role endpoint (heartbeat) to
+        // verify the token is accepted by Spring Security. Env-scoped read
+        // endpoints now require VIEWER+, so an agent token would get 403 there.
         HttpHeaders authHeaders = new HttpHeaders();
         authHeaders.set("Authorization", "Bearer " + newAccessToken);
         authHeaders.set("X-Cameleer-Protocol-Version", "1");
 
-        ResponseEntity<String> response = restTemplate.exchange(
+        ResponseEntity<String> response = restTemplate.postForEntity(
-                "/api/v1/environments/default/executions",
+                "/api/v1/agents/refresh-access-test/heartbeat",
-                HttpMethod.GET,
                 new HttpEntity<>(authHeaders),
                 String.class);
 

cameleer-server-app/src/test/java/com/cameleer/server/app/security/RegistrationSecurityIT.java

@@ -32,6 +32,7 @@ class RegistrationSecurityIT extends AbstractPostgresIT {
                 {
                   "instanceId": "%s",
                   "applicationId": "test-group",
+                  "environmentId": "default",
                   "version": "1.0.0",
                   "routeIds": [],
                   "capabilities": {}
@@ -80,14 +81,15 @@ class RegistrationSecurityIT extends AbstractPostgresIT {
         JsonNode regBody = objectMapper.readTree(regResponse.getBody());
         String accessToken = regBody.get("accessToken").asText();
 
-        // Use the access token to hit a protected endpoint accessible by AGENT role
+        // Hit an AGENT-role endpoint (heartbeat) to verify the access token is
+        // accepted. Env-scoped read endpoints now require VIEWER+, so the agent
+        // token would get 403 there.
         HttpHeaders headers = new HttpHeaders();
         headers.set("Authorization", "Bearer " + accessToken);
         headers.set("X-Cameleer-Protocol-Version", "1");
 
-        ResponseEntity<String> response = restTemplate.exchange(
+        ResponseEntity<String> response = restTemplate.postForEntity(
-                "/api/v1/environments/default/executions",
+                "/api/v1/agents/reg-sec-access-test/heartbeat",
-                HttpMethod.GET,
                 new HttpEntity<>(headers),
                 String.class);
 

cameleer-server-app/src/test/java/com/cameleer/server/app/security/SseSigningIT.java

@@ -90,6 +90,7 @@ class SseSigningIT extends AbstractPostgresIT {
                 {
                   "instanceId": "%s",
                   "applicationId": "test-group",
+                  "environmentId": "default",
                   "version": "1.0.0",
                   "routeIds": ["route-1"],
                   "capabilities": {}