Import Tripoli Cloud frontend prototype

React/TypeScript/Vite/Tailwind prototype from the design session (login,
dashboard, photos, backups, settings views with mocked API layer).
Infra work (Rust services, Ansible, OpenTofu) follows in subsequent commits.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,24 @@
+.DS_Store
+*.zip
+package-lock.json
+!/app/package-lock.json
+
+# Rust
+target/
+**/*.rs.bk
+
+# Ansible
+*.retry
+
+# OpenTofu / Terraform
+.terraform/
+*.tfstate
+*.tfstate.*
+*.tfvars
+!*.tfvars.example
+.terraform.lock.hcl
+
+# Secrets
+*.pem
+*.key
+!**/wireguard/*.example