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/2026-04-02-route-state-protocol-extension.md

@@ -194,7 +194,7 @@ for (AgentEvent event : events) {
 The agent detects route state changes using Camel's `EventNotifier` mechanism:
 
 ```java
-// In the Cameleer3 agent (cameleer3 repo)
+// In the Cameleer agent (cameleer repo)
 public class RouteStateEventNotifier extends EventNotifierSupport {
 
     @Override
@@ -264,7 +264,7 @@ Agent boots
 3. Update `RouteStateRegistry` from both sources
 4. Remove ACK-based inference from `AgentCommandController` (heartbeat/events are authoritative)
 
-### Phase 2: Agent-side (cameleer3 repo)
+### Phase 2: Agent-side (cameleer repo)
 1. Add `RouteStateEventNotifier` to detect state changes
 2. Maintain local `routeStates` map
 3. Include `routeStates` in heartbeat payload