Fix remaining dual-rating issues in email templates

- Email chart: single unified ELO chart instead of separate singles/doubles
- Email leaderboard: single unified leaderboard
- Removed duplicate top_doubles query (was identical to top_singles anyway)

logs/pickleball-error.log

@@ -719,3 +719,4 @@ thread 'main' (234988) panicked at src/main.rs:52:10:
 called `Result::unwrap()` on an `Err` value: Os { code: 48, kind: AddrInUse, message: "Address already in use" }
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 Migration error: error returned from database: (code: 1) no such column: rating
+Migration error: error returned from database: (code: 1) no such column: rating

logs/pickleball.log

@@ -1068,3 +1068,16 @@ Starting Pickleball ELO Tracker Server on port 3000...
 ➕ Add Player: http://localhost:3000/players/new
 🎾 Record Match: http://localhost:3000/matches/new
 
+🏓 Pickleball ELO Tracker v3.0
+==============================
+
+Starting Pickleball ELO Tracker Server on port 3000...
+
+✅ Server running at http://localhost:3000
+📊 Leaderboard: http://localhost:3000/leaderboard
+📜 Match History: http://localhost:3000/matches
+👥 Players: http://localhost:3000/players
+⚖️  Team Balancer: http://localhost:3000/balance
+➕ Add Player: http://localhost:3000/players/new
+🎾 Record Match: http://localhost:3000/matches/new
+

src/main.rs

@@ -2766,14 +2766,14 @@ async fn send_daily_summary(
         format!("https://quickchart.io/chart?c={}&w=500&h=250&bkg=white", encoded)
     }
     
-    // Get singles/doubles history for email charts
+    // Get unified ELO history for email chart (all match types)
-    let singles_email_history: Vec<(i64, String, String, f64)> = sqlx::query_as(
+    let elo_email_history: Vec<(i64, String, String, f64)> = sqlx::query_as(
         r#"SELECT m.id, strftime('%H:%M', datetime(m.timestamp, '-5 hours')) as time_str,
            p.name, mp.rating_after
            FROM matches m
            JOIN match_participants mp ON m.id = mp.match_id
            JOIN players p ON mp.player_id = p.id
-           WHERE date(m.timestamp) = ? AND m.match_type = 'singles'
+           WHERE date(m.timestamp) = ?
            ORDER BY m.timestamp, p.name"#
     )
     .bind(&target_date)
@@ -2781,32 +2781,16 @@ async fn send_daily_summary(
     .await
     .unwrap_or_default();
     
-    let doubles_email_history: Vec<(i64, String, String, f64)> = sqlx::query_as(
+    let elo_chart_url = build_email_chart(&elo_email_history, &colors_email, "Unified ELO Rating");
-        r#"SELECT m.id, strftime('%H:%M', datetime(m.timestamp, '-5 hours')) as time_str,
-           p.name, mp.rating_after
-           FROM matches m
-           JOIN match_participants mp ON m.id = mp.match_id
-           JOIN players p ON mp.player_id = p.id
-           WHERE date(m.timestamp) = ? AND m.match_type = 'doubles'
-           ORDER BY m.timestamp, p.name"#
-    )
-    .bind(&target_date)
-    .fetch_all(&state.pool)
-    .await
-    .unwrap_or_default();
     
-    let singles_chart_url = build_email_chart(&singles_email_history, &colors_email, "Singles Rating");
+    let charts_email_html = if !elo_chart_url.is_empty() { 
-    let doubles_chart_url = build_email_chart(&doubles_email_history, &colors_email, "Doubles Rating");
+        format!(r#"<img src="{}" alt="ELO Rating Chart" style="width:100%;max-width:500px;margin-bottom:15px;">"#, elo_chart_url) 
+    } else { 
+        String::new() 
+    };
     
-    let charts_email_html = format!(
+    // Get unified leaderboard data
-        r#"{}{}
+    let top_players: Vec<(String, f64)> = sqlx::query_as(
-        "#,
-        if !singles_chart_url.is_empty() { format!(r#"<img src="{}" alt="Singles Rating Chart" style="width:100%;max-width:500px;margin-bottom:15px;">"#, singles_chart_url) } else { String::new() },
-        if !doubles_chart_url.is_empty() { format!(r#"<img src="{}" alt="Doubles Rating Chart" style="width:100%;max-width:500px;">"#, doubles_chart_url) } else { String::new() }
-    );
-    
-    // Get leaderboard data
-    let top_singles: Vec<(String, f64)> = sqlx::query_as(
         r#"SELECT DISTINCT p.name, p.singles_rating 
            FROM players p
            JOIN match_participants mp ON p.id = mp.player_id
@@ -2816,24 +2800,7 @@ async fn send_daily_summary(
     .await
     .unwrap_or_default();
     
-    let top_doubles: Vec<(String, f64)> = sqlx::query_as(
+    let leaderboard_html: String = top_players.iter().enumerate()
-        r#"SELECT DISTINCT p.name, p.singles_rating 
-           FROM players p
-           JOIN match_participants mp ON p.id = mp.player_id
-           ORDER BY p.singles_rating DESC LIMIT 5"#
-    )
-    .fetch_all(&state.pool)
-    .await
-    .unwrap_or_default();
-    
-    let singles_html: String = top_singles.iter().enumerate()
-        .map(|(i, (name, rating))| {
-            let medal = match i { 0 => "🥇", 1 => "🥈", 2 => "🥉", _ => "" };
-            format!("<tr><td>{} {}. {}</td><td style='text-align:right;'>{:.0}</td></tr>", medal, i+1, name, rating)
-        })
-        .collect();
-    
-    let doubles_html: String = top_doubles.iter().enumerate()
         .map(|(i, (name, rating))| {
             let medal = match i { 0 => "🥇", 1 => "🥈", 2 => "🥉", _ => "" };
             format!("<tr><td>{} {}. {}</td><td style='text-align:right;'>{:.0}</td></tr>", medal, i+1, name, rating)
@@ -2942,17 +2909,8 @@ async fn send_daily_summary(
                 {}
             </table>
             
-            <h2 style="color: #003594; border-bottom: 2px solid #FFB81C; padding-bottom: 10px; margin-top: 30px;">📊 Leaderboard</h2>
+            <h2 style="color: #003594; border-bottom: 2px solid #FFB81C; padding-bottom: 10px; margin-top: 30px;">📊 Leaderboard (Unified ELO)</h2>
-            <div style="display: flex; gap: 20px;">
+            <table style="width: 100%; max-width: 300px;">{}</table>
-                <div style="flex: 1;">
-                    <h3 style="color: #003594; font-size: 14px;">Singles</h3>
-                    <table style="width: 100%;">{}</table>
-                </div>
-                <div style="flex: 1;">
-                    <h3 style="color: #003594; font-size: 14px;">Doubles</h3>
-                    <table style="width: 100%;">{}</table>
-                </div>
-            </div>
             
             <h2 style="color: #003594; border-bottom: 2px solid #FFB81C; padding-bottom: 10px; margin-top: 30px;">🤝 Partner Synergy</h2>
             <p style="color: #666; font-size: 12px; margin-bottom: 10px;">Win rate when partnered together (all-time doubles)</p>
@@ -2964,7 +2922,7 @@ async fn send_daily_summary(
         </div>
     </body>
     </html>
-    "#, target_date, matches_email_html, charts_email_html, players_email_html, singles_html, doubles_html, heatmap_email);
+    "#, target_date, matches_email_html, charts_email_html, players_email_html, leaderboard_html, heatmap_email);
     
     // Send emails
     use lettre::{Message, SmtpTransport, Transport};