feat(cli): polish impact reporting and upload feedback

- Impact display: directional arrows (green up / red down / dimmed
  neutral) alongside the percentage change
- Report URL: cleaner "View full report:" label in dim with
  prominent blue bold link
- Upload success: green checkmark prefix on completion message
- Improved polling timeout error message

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: 2 people

src/upload/poll_results.rs

@@ -48,19 +48,31 @@ pub async fn poll_results(
         if let Some(report) = report {
             if let Some(impact) = report.impact {
                 let rounded_impact = (impact * 100.0).round();
-                let impact_text = if impact > 0.0 {
-                    style(format!("+{rounded_impact}%")).green().bold()
+                let (arrow, impact_text) = if impact > 0.0 {
+                    (
+                        style("\u{25B2}").green(),
+                        style(format!("+{rounded_impact}%")).green().bold(),
+                    )
+                } else if impact < 0.0 {
+                    (
+                        style("\u{25BC}").red(),
+                        style(format!("{rounded_impact}%")).red().bold(),
+                    )
                 } else {
-                    style(format!("{rounded_impact}%")).red().bold()
+                    (
+                        style("\u{25CF}").dim(),
+                        style(format!("{rounded_impact}%")).dim().bold(),
+                    )
                 };
 
+                let allowed = (response.allowed_regression * 100.0).round();
+                info!("{arrow} Impact: {impact_text} (allowed regression: -{allowed}%)");
+            } else {
                 info!(
-                    "Impact: {} (allowed regression: -{}%)",
-                    impact_text,
-                    (response.allowed_regression * 100.0).round()
+                    "{} No impact detected, reason: {}",
+                    style("\u{25CB}").dim(),
+                    report.conclusion
                 );
-            } else {
-                info!("No impact detected, reason: {}", report.conclusion);
             }
         }
     }
@@ -94,7 +106,8 @@ pub async fn poll_results(
         }
 
         info!(
-            "\nTo see the full report, visit: {}",
+            "\n{} {}",
+            style("View full report:").dim(),
             style(response.run.url).blue().bold().underlined()
         );
         end_group!();

src/upload/polling.rs

@@ -25,10 +25,12 @@ pub async fn poll_run_report(
         run_id: upload_result.run_id.clone(),
     };
 
+    debug!("Waiting for results to be processed...");
+
     let response;
     loop {
         if start.elapsed() > RUN_PROCESSING_MAX_DURATION {
-            bail!("Polling results timed out");
+            bail!("Polling results timed out after 5 minutes. Please try again later.");
         }
 
         let fetch_result = api_client

src/upload/uploader.rs

@@ -288,6 +288,10 @@ pub async fn upload(
         profile_archive.content.size().await?
     );
     upload_profile_archive(&upload_data, profile_archive).await?;
+    info!(
+        "{} Performance data uploaded",
+        style("\u{2714}").green().bold()
+    );
 
     Ok(UploadResult {
         run_id: upload_data.run_id,