feat: display agent avatar from OpenClaw identity config

Fetch agent identity via agent.identity.get WS method after connect.
Display avatar in message bubbles (replacing Bot icon) and in the
header (replacing the PinchChat logo when an avatar is configured).
Falls back to default icons when no avatar is set.

FEEDBACK.md

@@ -501,3 +501,56 @@
   - Clicking the info button on messages does nothing — no panel appears
   - Introduced in v1.15.0 (commit `b4813f0`)
   - Fix the click handler / panel display logic
+
+## Item #47
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Themes — light mode, OLED black, custom theme support
+  - Add theme switcher (dark default, light mode, OLED black)
+  - Configurable accent color
+  - Persist choice in localStorage
+
+## Item #48
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Message search — Ctrl+F in conversation history
+  - Search bar that filters/highlights messages in the current session
+  - Navigate between results (up/down arrows)
+  - Keyboard shortcut Ctrl+F
+
+## Item #49
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Syntax highlight in the input textarea
+  - Color code blocks even while typing in the prompt input
+  - Highlight markdown syntax (bold, code, headers) in real-time
+
+## Item #50
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Multi-tab — split view for 2 sessions side by side
+  - Allow viewing 2 sessions simultaneously in a split pane layout
+  - Drag-to-resize divider between panes
+  - Toggle via button or keyboard shortcut
+
+## Item #51
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Typing preview — live markdown render while typing
+  - Show a preview pane below or beside the input with rendered markdown
+  - Toggle on/off
+  - Helps compose complex messages with formatting
+
+## Item #52
+- **Date:** 2026-02-12
+- **Priority:** medium
+- **Status:** pending
+- **Description:** Raw JSON viewer — toggle to see raw gateway messages
+  - Toggle button to switch between rendered view and raw JSON
+  - Show the full gateway message payload as formatted JSON
+  - Useful for debugging and understanding the protocol