chore: rename cameleer3 to cameleer

Rename Java packages from net.siegeln.cameleer3 to net.siegeln.cameleer,
update all references in workflows, Docker configs, docs, and bootstrap.

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

src/main/java/net/siegeln/cameleer/saas/identity/LogtoConfig.java

@@ -25,7 +25,7 @@ public class LogtoConfig {
     @Value("${cameleer.saas.identity.m2mclientsecret:}")
     private String m2mClientSecret;
 
-    @Value("${cameleer.saas.identity.serverendpoint:http://cameleer3-server:8081}")
+    @Value("${cameleer.saas.identity.serverendpoint:http://cameleer-server:8081}")
     private String serverEndpoint;
 
     private String tradAppId;

src/main/java/net/siegeln/cameleer/saas/identity/ServerApiClient.java

@@ -11,7 +11,7 @@ import java.time.Instant;
 import java.util.Map;
 
 /**
- * Authenticated client for cameleer3-server API calls.
+ * Authenticated client for cameleer-server API calls.
  * Uses Logto M2M client_credentials grant with the Cameleer API resource.
  */
 @Service
@@ -191,7 +191,7 @@ public class ServerApiClient {
             cachedToken = response.get("access_token").asText();
             long expiresIn = response.get("expires_in").asLong();
             tokenExpiry = Instant.now().plusSeconds(expiresIn);
-            log.info("Acquired cameleer3-server M2M access token");
+            log.info("Acquired cameleer-server M2M access token");
 
             return cachedToken;
         } catch (Exception e) {