chore: rename cameleer3 to cameleer

Rename Java packages from com.cameleer3 to com.cameleer, module
directories from cameleer3-* to cameleer-*, and all references
throughout workflows, Dockerfiles, docs, migrations, and pom.xml.

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

docs/superpowers/specs/2026-04-11-infrastructure-endpoint-visibility-design.md

@@ -2,7 +2,7 @@
 
 **Date:** 2026-04-11
 **Status:** Approved
-**Scope:** cameleer3-server + cameleer-saas
+**Scope:** cameleer-server + cameleer-saas
 
 ---
 
@@ -113,7 +113,7 @@ returns 404 and the page shows its existing error state.
 
 The SaaS platform sits on the same Docker network as PostgreSQL and ClickHouse.
 It already has their connection URLs in `ProvisioningProperties` (`datasourceUrl`
-for cameleer3 PostgreSQL, `clickhouseUrl` for ClickHouse). It already uses raw
+for cameleer PostgreSQL, `clickhouseUrl` for ClickHouse). It already uses raw
 JDBC (`DriverManager.getConnection()`) for tenant data cleanup in
 `TenantDataCleanupService`. The infrastructure dashboard uses the same pattern.