Update README status to complete for CLI/MCP/Core migration evaluation

Author: Marvin Zhang

specs/170-cli-mcp-core-rust-migration-evaluation/README.md

@@ -1,5 +1,5 @@
 ---
-status: in-progress
+status: complete
 created: '2025-12-12'
 tags:
   - architecture
@@ -13,15 +13,19 @@ priority: high
 created_at: '2025-12-12T21:46:32.672Z'
 depends_on:
   - 169-ui-backend-rust-tauri-migration-evaluation
-updated_at: '2025-12-13T22:21:16.663Z'
+updated_at: '2025-12-18T02:43:40.905Z'
 transitions:
   - status: in-progress
     at: '2025-12-13T22:21:16.663Z'
+  - status: complete
+    at: '2025-12-18T02:43:40.905Z'
+completed_at: '2025-12-18T02:43:40.905Z'
+completed: '2025-12-18'
 ---
 
 # Evaluate CLI/MCP/Core Migration to Rust for Unified Codebase
 
-> **Status**: ⏳ In progress · **Priority**: High · **Created**: 2025-12-12 · **Tags**: architecture, rust, cli, mcp, core, code-unification, evaluation
+> **Status**: ✅ Complete · **Priority**: High · **Created**: 2025-12-12 · **Tags**: architecture, rust, cli, mcp, core, code-unification, evaluation
 
 ## Overview