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/2026-03-28-navigation-redesign-design.md

@@ -4,7 +4,7 @@
 
 ## Context
 
-The Cameleer3 UI was redesigned from page-based routing to a scope-based model with three content tabs. The Process Diagram is the major USP for the Apache Camel community.
+The Cameleer UI was redesigned from page-based routing to a scope-based model with three content tabs. The Process Diagram is the major USP for the Apache Camel community.
 
 ## Core Model
 
@@ -130,7 +130,7 @@ Default `/` redirects to `/exchanges`.
 
 ## What Differentiates from njams
 
-1. **Three-tab model** — njams interleaves everything; Cameleer3 separates concerns
+1. **Three-tab model** — njams interleaves everything; Cameleer separates concerns
 2. **Inline KPI metrics** — compact stats in the tab bar with trend indicators
 3. **State-based selection** — exchange selection via local state, not URL navigation (preserves search)
 4. **Browser history integration** — Back/Forward restores exchange selection