Add MTurk survey code generation and validation

.gitignore

@@ -1,4 +1,29 @@
+# Node modules
 node_modules/
-package-lock.json
-.netlify
+
+# Build outputs
+dist/
+build/
+
+# Rust/WASM build artifacts
+wasm-keystroke-capture/target/
+wasm-keystroke-capture/Cargo.lock
+
+# OS files
 .DS_Store
+Thumbs.db
+
+# IDE files
+.vscode/
+.idea/
+
+# Environment variables
+.env
+.env.local
+
+# Logs
+*.log
+npm-debug.log*
+
+# Local Netlify folder
+.netlify

.netlify/functions-serve/data-handler/data-handler.js

@@ -0,0 +1 @@
+module.exports = require('./netlify/functions/data-handler.js')

.netlify/state.json

@@ -0,0 +1,20 @@
+{
+	"geolocation": {
+		"data": {
+			"city": "San Jose",
+			"country": {
+				"code": "US",
+				"name": "United States"
+			},
+			"subdivision": {
+				"code": "CA",
+				"name": "California"
+			},
+			"timezone": "America/Los_Angeles",
+			"latitude": 37.3028,
+			"longitude": -121.9982,
+			"postalCode": "95129"
+		},
+		"timestamp": 1751494508237
+	}
+}

netlify.toml

@@ -2,11 +2,27 @@
 [build]
 command = "# no build command"
 functions = "netlify/functions"
-publish = "km_headless_testbed/"
+publish = "."
 
 [functions]
 node_bundler = "esbuild"
 
+# Add explicit CORS headers for all function responses
+[[headers]]
+for = "/.netlify/functions/*"
+  [headers.values]
+  Access-Control-Allow-Origin = "*"
+  Access-Control-Allow-Methods = "GET, POST, OPTIONS, PUT, DELETE"
+  Access-Control-Allow-Headers = "Content-Type, Authorization, X-Requested-With, Accept, Origin, Access-Control-Request-Method, Access-Control-Request-Headers"
+  Access-Control-Max-Age = "86400"
+  Access-Control-Allow-Credentials = "false"
+
+# Configure Netlify Dev to serve everything on port 8888
+[dev]
+port = 8888
+targetPort = 8888
+autoLaunch = false
+
 ## Uncomment to use this redirect for Single Page Applications like create-react-app.
 ## Not needed for static site generators.
 #[[redirects]]