Refactor code structure for improved readability and maintainability

.ccw/workflows/windows-platform.md

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+# Windows Platform Guidelines
+
+## Path Format
+
+- **MCP Tools**: `D:\\path\\file.txt`
+- **Bash**: `D:/path/file.txt` or `/d/path/file.txt`
+- **Relative**: `./src/index.ts`
+
+## Bash Rules (Prevent Garbage Files)
+
+1. **Null redirect**: `command > NUL 2>&1`
+2. **Quote all**: `echo "$VAR"`, `cat "file name.txt"`
+3. **Variable assignment**: `export VAR=value && command`
+4. **Regex escape**: `grep -F "State<T>"` or `grep "State\<T\>"`
+5. **Pipe output**: `command 2>&1 | ...` (avoid bare command output)
+
+## Tool Priority
+
+MCP Tools > PowerShell > Git Bash > cmd