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/2026-03-27-execution-overlay-design.md

@@ -36,7 +36,7 @@ Build an `ExecutionDiagram` wrapper component that overlays execution data onto
 
 ### Iteration fields on ProcessorNode
 
-The `ProcessorExecution` model in `cameleer3-common` has iteration tracking fields (`loopIndex`, `loopSize`, `splitIndex`, `splitSize`, `multicastIndex`), but the server's storage layer and API response model do not surface them. The following changes are needed:
+The `ProcessorExecution` model in `cameleer-common` has iteration tracking fields (`loopIndex`, `loopSize`, `splitIndex`, `splitSize`, `multicastIndex`), but the server's storage layer and API response model do not surface them. The following changes are needed:
 
 **Storage:**
 - Add columns to `processor_records` table: `loop_index`, `loop_size`, `split_index`, `split_size`, `multicast_index` (all nullable integers)