chore: import upstream snapshot with attribution

cli-rust/src/constants.rs

@@ -0,0 +1,60 @@
+//! Centralized constants: GitHub endpoints, tracking URLs, repo coordinates.
+//!
+//! Mirrors the hard-coded URLs used across `cli-tool/src/index.js` and
+//! `cli-tool/src/tracking-service.js` so the Rust port hits the exact same
+//! sources and analytics endpoints.
+
+/// Repo owner/name and default branch used to build raw + API URLs.
+pub const REPO: &str = "davila7/claude-code-templates";
+pub const BRANCH: &str = "main";
+
+/// Base for raw component downloads:
+/// `https://raw.githubusercontent.com/<repo>/<branch>/cli-tool/components`
+pub fn raw_components_base() -> String {
+    format!("https://raw.githubusercontent.com/{REPO}/{BRANCH}/cli-tool/components")
+}
+
+/// Base for the GitHub contents API (used by skills, recursive tree download):
+/// `https://api.github.com/repos/<repo>/contents/cli-tool/components`
+pub fn api_components_base() -> String {
+    format!("https://api.github.com/repos/{REPO}/contents/cli-tool/components")
+}
+
+// Tracking endpoints (Vercel — www.aitmpl.com). Fire-and-forget only.
+pub const TRACK_DOWNLOAD_URL: &str = "https://www.aitmpl.com/api/track-download-supabase";
+pub const TRACK_COMMAND_URL: &str = "https://www.aitmpl.com/api/track-command-usage";
+pub const TRACK_OUTCOME_URL: &str = "https://www.aitmpl.com/api/track-installation-outcome";
+
+/// CLI version reported to tracking + User-Agent.
+pub const CLI_VERSION: &str = env!("CARGO_PKG_VERSION");
+
+/// User-Agent string used for tracking and the GitHub contents API.
+pub fn user_agent() -> String {
+    format!("claude-code-templates/{CLI_VERSION}")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn raw_base_points_at_main_components() {
+        assert_eq!(
+            raw_components_base(),
+            "https://raw.githubusercontent.com/davila7/claude-code-templates/main/cli-tool/components"
+        );
+    }
+
+    #[test]
+    fn api_base_points_at_contents() {
+        assert_eq!(
+            api_components_base(),
+            "https://api.github.com/repos/davila7/claude-code-templates/contents/cli-tool/components"
+        );
+    }
+
+    #[test]
+    fn user_agent_carries_version() {
+        assert!(user_agent().starts_with("claude-code-templates/"));
+    }
+}