chore: reorganize project into monorepo

.gitignore

@@ -1,24 +1,11 @@
-# build output
-dist/
-# generated types
-.astro/
+.codex/
+.vscode/
+.windsurf/
 
-# dependencies
-node_modules/
+frontend/.astro/
+frontend/dist/
+frontend/node_modules/
 
-# logs
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-pnpm-debug.log*
-
-
-# environment variables
-.env
-.env.production
-
-# macOS-specific files
-.DS_Store
-
-# jetbrains setting folder
-.idea/
+backend/target/
+backend/.loco-start.err.log
+backend/.loco-start.out.log