fix(tui): rate limit frame capture to max 1 frame per second

cortex-tui/src/capture.rs

@@ -32,8 +32,12 @@ use cortex_tui_capture::{
 };
 use ratatui::buffer::Buffer as RatatuiBuffer;
 use std::sync::atomic::{AtomicU64, Ordering};
+use std::time::Instant;
 use tracing::{debug, info, warn};
 
+/// Minimum interval between frame captures when capture_all is enabled (1 second)
+const MIN_CAPTURE_INTERVAL_SECS: u64 = 1;
+
 /// Static frame counter for unique frame labeling
 static FRAME_COUNTER: AtomicU64 = AtomicU64::new(0);
 
@@ -54,6 +58,8 @@ pub struct TuiCapture {
     modal_open: bool,
     /// Last captured event description
     last_event: String,
+    /// Last time a frame was captured (for rate limiting capture_all mode)
+    last_capture_time: Option<Instant>,
 }
 
 impl TuiCapture {
@@ -80,6 +86,7 @@ impl TuiCapture {
             autocomplete_visible: false,
             modal_open: false,
             last_event: String::new(),
+            last_capture_time: None,
         }
     }
 
@@ -201,6 +208,9 @@ impl TuiCapture {
     ///
     /// This should be called after each render. It captures the current
     /// buffer state as ASCII art.
+    ///
+    /// When `capture_all` is enabled, frames are rate-limited to at most
+    /// one per second to avoid excessive logging and storage.
     pub fn capture_frame(&mut self, buffer: &RatatuiBuffer, label: Option<&str>) {
         if let Some(ref mut manager) = self.inner {
             let snapshot = BufferSnapshot::from_ratatui_buffer(buffer);
@@ -212,6 +222,15 @@ impl TuiCapture {
                 let event = std::mem::take(&mut self.last_event);
                 format!("{} - {}", self.current_view, event)
             } else if self.capture_all {
+                // Rate limit capture_all frames to max 1 per second
+                let now = Instant::now();
+                if let Some(last_time) = self.last_capture_time {
+                    if now.duration_since(last_time).as_secs() < MIN_CAPTURE_INTERVAL_SECS {
+                        // Skip this frame - not enough time has passed
+                        return;
+                    }
+                }
+                self.last_capture_time = Some(now);
                 let frame_num = FRAME_COUNTER.fetch_add(1, Ordering::SeqCst);
                 format!("{} - frame {}", self.current_view, frame_num)
             } else {