更新记忆文件，记录方言AI助手项目

skills/code/planning.md

@@ -0,0 +1,31 @@
+# Planning Reference
+
+Consult when breaking down a multi-step request.
+
+## When to Plan
+- Multiple files or components
+- Dependencies between parts
+- UI that needs visual verification
+- User says "build", "create", "implement"
+
+## Step Format
+```
+Step N: [What]
+- Output: [What exists after]
+- Test: [How to verify]
+```
+
+## Good Steps
+- Clear output (file, endpoint, screen)
+- Testable independently
+- No ambiguity in what "done" means
+
+## Bad Steps
+- "Implement the thing" (vague output)
+- No test defined
+- Depends on undefined prior step
+
+## Don't Plan
+- One-liner functions
+- Simple modifications
+- Questions about existing code