fix: replace Unicode symbols in cache stats with plain text labels

Terminal renderer and WebUI now use 'in', 'out', 'created', 'read',
'cached' text labels instead of ⌂, ⎇, ⊕, ⊙, ⊡ symbols that don't
render on all terminals/devices.

Author: jkyberneees

cmd/odek/ui/index.html

@@ -1397,20 +1397,20 @@ <h3>Delete session?</h3>
             stats.className = 'msg-stats';
             const parts = [];
             parts.push('⚡ ' + (event.latency < 1 ? (event.latency * 1000).toFixed(0) + 'ms' : event.latency.toFixed(1) + 's'));
-            if (event.contextTokens != null) parts.push('⌂ ' + formatNum(event.contextTokens));
-            if (event.outputTokens != null) parts.push('⎇ ' + formatNum(event.outputTokens));
+            if (event.contextTokens != null) parts.push(formatNum(event.contextTokens) + ' in');
+            if (event.outputTokens != null) parts.push(formatNum(event.outputTokens) + ' out');
             // Cache metrics — show only when non-zero
-            if (event.cacheCreationTokens > 0) parts.push('⊕ ' + formatNum(event.cacheCreationTokens));
-            if (event.cacheReadTokens > 0) parts.push('⊙ ' + formatNum(event.cacheReadTokens));
-            if (event.cachedTokens > 0) parts.push('⊡ ' + formatNum(event.cachedTokens));
+            if (event.cacheCreationTokens > 0) parts.push(formatNum(event.cacheCreationTokens) + ' created');
+            if (event.cacheReadTokens > 0) parts.push(formatNum(event.cacheReadTokens) + ' read');
+            if (event.cachedTokens > 0) parts.push(formatNum(event.cachedTokens) + ' cached');
             stats.textContent = parts.join('  ·  ');
             lastAssistant.appendChild(stats);
           }
         }
         // Update session-level token stats in top bar
         const sessionStatsEl = document.getElementById('session-stats');
         if (event.sessionContextTokens != null && event.sessionOutputTokens != null) {
-          const sessParts = ['∑ ⌂ ' + formatNum(event.sessionContextTokens) + '  ·  ⎇ ' + formatNum(event.sessionOutputTokens)];
+          const sessParts = ['∑ ' + formatNum(event.sessionContextTokens) + ' in  ·  ' + formatNum(event.sessionOutputTokens) + ' out'];
           if (event.cacheReadTokens > 0 || event.cacheCreationTokens > 0 || event.cachedTokens > 0) {
             // Count total session cache stats (accumulated across the session)
             // We store cache totals on the session-stats element's dataset

internal/render/render.go

@@ -207,6 +207,7 @@ func (r *Renderer) FinalAnswer(text string) {
 // Summary prints a run summary line with total token and cache statistics.
 // Emitted after the final answer when at least one stat is non-zero.
 // Shows: total input/output tokens, cache creation/read/cached tokens.
+// Uses plain text labels (no symbols) for cross-terminal compatibility.
 func (r *Renderer) Summary(inTokens, outTokens, cacheCreate, cacheRead, cached int) {
 	if r.disable() {
 		return
@@ -215,17 +216,17 @@ func (r *Renderer) Summary(inTokens, outTokens, cacheCreate, cacheRead, cached i
 		return
 	}
 	parts := []string{
-		fmt.Sprintf("⌂ %d in", inTokens),
-		fmt.Sprintf("⎇ %d out", outTokens),
+		fmt.Sprintf("%d in", inTokens),
+		fmt.Sprintf("%d out", outTokens),
 	}
 	if cacheCreate > 0 {
-		parts = append(parts, fmt.Sprintf("⊕ %d created", cacheCreate))
+		parts = append(parts, fmt.Sprintf("%d created", cacheCreate))
 	}
 	if cacheRead > 0 {
-		parts = append(parts, fmt.Sprintf("⊙ %d read", cacheRead))
+		parts = append(parts, fmt.Sprintf("%d read", cacheRead))
 	}
 	if cached > 0 {
-		parts = append(parts, fmt.Sprintf("⊡ %d cached", cached))
+		parts = append(parts, fmt.Sprintf("%d cached", cached))
 	}
 	fmt.Fprintln(r.w, r.style(gray, "── "+strings.Join(parts, " · ")))
 	fmt.Fprintln(r.w)