Revert users.conf to original example configuration

- Remove integration test user configuration
- Restore original example comments and configuration
- Prepare for production use

Author: locus313

users.conf

@@ -1,6 +1,28 @@
 #!/bin/bash
-# Integration test configuration
+
+# SSH Key Sync Configuration File
+# This file defines which users should have their SSH keys synchronized and from where.
+
+# GitHub token for accessing private repositories (optional)
+# You can also set this as an environment variable: export GITHUB_TOKEN="your_token_here"
+#CONF_GITHUB_TOKEN="your_github_token_here"
+
+# User SSH key configuration
+# Format: ["username"]="method:source"
+# 
+# Available methods:
+#   raw:    Fetch from a public URL (e.g., raw GitHub file)
+#   api:    Fetch from GitHub API (requires GITHUB_TOKEN for private repos)
+#   ghuser: Fetch public keys from a GitHub user's profile
+#
+# Examples:
 declare -A USER_KEYS=(
-  # Use a real GitHub user with known public keys for integration testing
-  ["testintegration"]="ghuser:locus313"
+  # Fetch keys from a public URL
+  #["ubuntu"]="raw:https://example.com/ssh-keys/ubuntu.authorized_keys"
+  
+  # Fetch keys from a private GitHub repository using API
+  #["devuser"]="api:https://api.github.com/repos/yourorg/ssh-keys/contents/keys/devuser.authorized_keys?ref=main"
+  
+  # Fetch public keys from a GitHub user's profile
+  #["alice"]="ghuser:alice-github-username"
 )