add monorepo layout and root README

.gitignore

@@ -0,0 +1,16 @@
+.env.dev
+.env.prod
+
+/deploy/certs
+/deploy/certbot/www
+
+/backend/node_modules
+/backend/dist
+/backend/storage
+
+/frontend/node_modules
+/frontend/dist
+
+.vscode
+.idea
+*.log

README.md

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+# Private Image
+
+Self-hosted, privacy-focused image hosting. Images are metadata-stripped and encrypted in the browser before upload. Supports **zero-knowledge** viewer links and **hotlink** mode for embeds.

Readme.md

@@ -1 +0,0 @@
-Private Image