feat: add frame caching demo documentation

.gitignore

@@ -0,0 +1,34 @@
+# Rust
+target/
+
+# Frontend dependencies and build output
+web/node_modules/
+web/.next/
+web/out/
+web/.turbo/
+
+# Generated analysis artifacts
+graphify-out/
+
+# Local media asset
+video.h264
+
+# Environment files
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+web/.env.local
+web/.env.development.local
+web/.env.test.local
+web/.env.production.local
+!web/.env.local.example
+
+# Editor / OS noise
+.DS_Store
+Thumbs.db
+.idea/
+.vscode/
+*.swp
+*.swo