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/2026-03-31-clickhouse-migration-design.md

@@ -5,7 +5,7 @@ PostgreSQL retained only for RBAC, config, and audit log.
 
 ## Context
 
-Cameleer3-server currently uses three storage systems:
+Cameleer-server currently uses three storage systems:
 
 - **PostgreSQL/TimescaleDB**: executions, processor_executions, agent_metrics (hypertables), agent_events, route_diagrams, plus RBAC/config/audit tables. Continuous aggregates for dashboard statistics.
 - **OpenSearch**: executions-YYYY-MM-DD indices (full-text search on bodies/headers/errors), logs-YYYY-MM-DD indices (application log storage with 7-day retention).
@@ -34,7 +34,7 @@ This architecture has scaling limits: three systems to operate, data duplication
 
 These are features NOT available in the open-source version:
 
-| Constraint | Impact on Cameleer3 |
+| Constraint | Impact on Cameleer |
 |------------|---------------------|
 | No SharedMergeTree | No elastic compute scaling; must size nodes up-front. Acceptable for self-hosted. |
 | No BM25 relevance scoring | Search returns matches without ranking. Acceptable for observability (want all matches, not ranked). |