migrate mosaic home to xdg config path

guides/frontend.md

@@ -1,7 +1,7 @@
 # Frontend Development Guide
 
 ## Before Starting
-1. Check assigned issue in git repo: `~/.mosaic/rails/git/issue-list.sh -a @me`
+1. Check assigned issue in git repo: `~/.config/mosaic/rails/git/issue-list.sh -a @me`
 2. Create scratchpad: `docs/scratchpads/{issue-number}-{short-name}.md`
 3. Review existing components and patterns in the codebase
 
@@ -49,7 +49,7 @@ describe('ComponentName', () => {
 
 ## Code Style
 - Follow Google JavaScript/TypeScript Style Guide
-- **TypeScript: Follow `~/.mosaic/guides/typescript.md` — MANDATORY**
+- **TypeScript: Follow `~/.config/mosaic/guides/typescript.md` — MANDATORY**
 - Use ESLint/Prettier configuration from project
 - Prefer functional components over class components (React)
 - TypeScript strict mode is REQUIRED, not optional