Refactor project name from "Open Claude Design" to "Open Design"

- Updated project name in package.json, package-lock.json, and README files.
- Changed CLI commands and references from "ocd" to "od".
- Adjusted file structure references in documentation and code to reflect new naming conventions.
- Enhanced .gitignore to include new runtime data files.
- Updated metadata in LICENSE file to match new project name.

assets/frames/README.md

@@ -43,7 +43,7 @@ path inside its inner viewport:
 ></iframe>
 \`\`\`
 
-In an OCD-managed project, the recommended pattern is:
+In an OD-managed project, the recommended pattern is:
 
 \`\`\`
 my-project/