Switch to forked pop-telemetry with custom Umami endpoint support

- Use forked pop-telemetry from github.com/jasonwitty/pop-cli
- Implement init_with_website_id to configure custom endpoint and website ID
- Add --umami-endpoint and --umami-website-id CLI parameters
- Default endpoint: http://unami.wittyoneoff.com/api/send
- Default website ID: caefa16f-86af-4835-8b82-c8649aea0e2a
- Maintains backward compatibility with config file opt-out support

This allows webterm to send analytics to our self-hosted Umami instance
instead of the default pop-cli telemetry endpoint.

src/analytics.rs

@@ -16,12 +16,14 @@ pub struct Analytics {
 }
 
 impl Analytics {
-    /// Create a new Analytics instance
+    /// Create a new Analytics instance with custom Umami endpoint
     ///
     /// # Arguments
+    /// * `website_id` - The Umami website ID
+    /// * `endpoint` - The Umami instance endpoint (e.g., "http://unami.wittyoneoff.com/api/send")
     /// * `config_path` - Path to the telemetry config file (for opt-out checks)
-    pub fn new(config_path: PathBuf) -> Self {
-        let telemetry = Telemetry::new(&config_path);
+    pub fn new(website_id: String, endpoint: String, config_path: PathBuf) -> Self {
+        let telemetry = Telemetry::init_with_website_id(endpoint, website_id, &config_path);
 
         Self {
             telemetry: Arc::new(Mutex::new(Some(telemetry))),

src/server.rs

@@ -25,6 +25,14 @@ struct Opt {
     #[arg(long, default_value = "true")]
     enable_analytics: bool,
 
+    /// Umami instance endpoint
+    #[arg(long, default_value = "http://unami.wittyoneoff.com/api/send")]
+    umami_endpoint: String,
+
+    /// Umami website ID
+    #[arg(long, default_value = "caefa16f-86af-4835-8b82-c8649aea0e2a")]
+    umami_website_id: String,
+
     /// Path to telemetry config file (for opt-out management)
     #[arg(long)]
     telemetry_config: Option<PathBuf>,
@@ -73,8 +81,17 @@ async fn main() -> std::io::Result<()> {
             std::fs::create_dir_all(parent).ok();
         }
 
-        log::info!("Analytics enabled (config: {:?})", config_path);
-        Analytics::new(config_path)
+        log::info!(
+            "Analytics enabled: {} (website_id: {}, config: {:?})",
+            opt.umami_endpoint,
+            opt.umami_website_id,
+            config_path
+        );
+        Analytics::new(
+            opt.umami_website_id.clone(),
+            opt.umami_endpoint.clone(),
+            config_path,
+        )
     } else {
         log::info!("Analytics disabled");
         Analytics::disabled()