adding an env example file

.env.example

@@ -0,0 +1,29 @@
+# Bespoke Labs Curator Environment Configuration
+
+#######################
+# Required Settings
+#######################
+
+# OpenAI API Key
+# Currently required as OpenAI is the only supported LLM provider
+# Support for other providers (Claude, etc.) may be added in the future
+# Get your key from: https://platform.openai.com/api-keys
+OPENAI_API_KEY=sk-your-key-here
+
+#######################
+# Optional Settings
+#######################
+
+# Cache Directory
+# Location where Curator stores its cache files
+# Default: ~/.curator
+# Note: This can also be set via the working_dir parameter in code
+CURATOR_CACHE_DIR=/path/to/cache/directory
+
+# Viewer Configuration
+# Settings for the Curator Dataset Viewer
+# Note: These are primarily set via command-line arguments:
+#   curator-viewer --host xxx --port xxx
+# These environment variables are used as fallbacks if not specified via CLI
+HOST=127.0.0.1
+PORT=3000