chore: update sysprom for ch32 progress

Author: Mearman

.spm.json

@@ -3770,7 +3770,7 @@
 					"done": false
 				}
 			],
-			"status": "proposed",
+			"status": "in_progress",
 			"type": "change"
 		},
 		{

.spm/CHANGES.md

@@ -714,7 +714,7 @@ Add an MCP server at src/mcp/index.ts that wraps SysProM's programmatic API as M
 
 - Implements: D34
 
-- Status: proposed
+- Status: in_progress
 
 #### Plan