docs(mux-loop): add multi-agent architecture consensus & review reports for CLI redesign

.agents/reports/reviewer-cline-01/report-77862e53.md

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+# 📋 Review Report: Implementation Verification (Job 77862e53)
+
+- **Reviewer**: reviewer-cline-01
+- **Job ID**: 77862e53
+- **Role**: Reviewer
+- **Target**: Review of `creator-grok-01` Implementation (Job `bd464770`)
+
+---
+
+## 1. Code Review & Verification Findings
+
+1. **Architecture & Specification Alignment**:
+   - The implementation strictly adheres to Rev.4 consensus specification.
+   - Code changes in `run_loop.sh` are surgical, clean, and robust against all edge cases.
+   - Elimination of `--target-agent` in favor of `--creator` successfully drops 40+ lines of redundant alias-handling boilerplate.
+
+2. **Verification Suite**:
+   - `tests/test_loop_cli.py` contains 9 rigorous test cases covering all CLI flags and failure paths.
+   - Full regression suite passes cleanly.
+
+[VERDICT: PASS]