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/ui-mocks/camel-developer-review.md

@@ -1,4 +1,4 @@
-# Cameleer3 Dashboard Review -- Senior Camel Developer Perspective
+# Cameleer Dashboard Review -- Senior Camel Developer Perspective
 
 **Reviewer**: Senior Apache Camel Developer (10+ years, Java DSL / Spring Boot)
 **Artifact reviewed**: `mock-v2-light.html` -- Operations Dashboard (v2 synthesis)