fix(dsh-plugin-browserskill): stop observation overlay from flashing between frames

Hold the last ready thumbnail until the next one decodes, and swap the img src in place instead of remounting through a placeholder.
2026-09-10 13:01:23 +08:00 · 2026-08-17 07:27:28 +00:00
parent 51085b960b
commit 9854ee2f45
6 changed files with 157 additions and 19 deletions
@@ -109,7 +109,8 @@ shell's theme cannot bleed back in.
 - **Lifecycle**: hidden while the plugin owns no sessions; appears on the first
  `browser_session_start`; disappears when all sessions stop (or the plugin unloads).
 - **Focus view**: status row (green/idle/red dot + session + action + mm:ss), the latest page
-  frame (refreshes every ~1.5s while active, ~8s when idle, keeps the last frame on errors),
+  frame (refreshes every ~1.5s while active, ~8s when idle; the last good frame stays on
+  stage while the next one loads, and is kept on errors so the card does not flash),
  and the action row (Interrupt + Pop out).
 - **Interrupt**: one click kills the in-flight bsk command of the focus session (same semantics
  as the chat Stop button — the current action fails, the agent run may continue). Strip items