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>

docs/superpowers/plans/2026-04-04-phase-2-tenants-identity-licensing.md

@@ -2006,7 +2006,7 @@ available throughout request lifecycle."
 **Files:**
 - Create: `src/main/java/net/siegeln/cameleer/saas/config/ForwardAuthController.java`
 
-This endpoint is called by Traefik's ForwardAuth middleware to validate requests routed to non-platform services (e.g., cameleer3-server). It validates the JWT, resolves the tenant, and returns tenant context headers.
+This endpoint is called by Traefik's ForwardAuth middleware to validate requests routed to non-platform services (e.g., cameleer-server). It validates the JWT, resolves the tenant, and returns tenant context headers.
 
 - [ ] **Step 1: Create ForwardAuthController**
 
@@ -2455,8 +2455,8 @@ services:
     networks:
       - cameleer
 
-  cameleer3-server:
-    image: ${CAMELEER3_SERVER_IMAGE:-gitea.siegeln.net/cameleer/cameleer3-server}:${VERSION:-latest}
+  cameleer-server:
+    image: ${CAMELEER_SERVER_IMAGE:-gitea.siegeln.net/cameleer/cameleer-server}:${VERSION:-latest}
     restart: unless-stopped
     depends_on:
       postgres:
@@ -2539,9 +2539,9 @@ git add docker-compose.yml docker-compose.dev.yml traefik.yml docker/init-databa
 git commit -m "feat: add Docker Compose production stack with Traefik + Logto
 
 7-container stack: Traefik (reverse proxy), PostgreSQL (shared),
-Logto (identity), cameleer-saas (control plane), cameleer3-server
+Logto (identity), cameleer-saas (control plane), cameleer-server
 (observability), ClickHouse (traces). ForwardAuth middleware for
-tenant-aware routing to cameleer3-server."
+tenant-aware routing to cameleer-server."
 ```
 
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