fix(properties): enhance element detection in properties panel with recursive search and retry mechanism

readme.hints.md

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- 
+# Project Hints and Findings
+
+## Properties Panel Element Detection Issue (Fixed)
+
+### Problem
+The properties panel had timing issues detecting rendered elements because:
+1. Elements are rendered asynchronously via lit's `render()` function in the dashboard component
+2. The properties panel tried to find elements immediately without waiting for render completion
+3. Element search only looked at direct children of the viewport, missing nested elements or those inside shadow DOM
+
+### Solution Implemented
+1. Added a 100ms initial delay to allow render completion
+2. Implemented recursive element search that:
+   - Searches through nested children up to 5 levels deep
+   - Checks shadow roots of elements
+   - Handles complex DOM structures
+3. Added retry mechanism with up to 5 attempts (200ms between retries)
+4. Improved error messages to show retry count
+
+### Code Flow
+1. Dashboard renders element demo into viewport using `render(anonItem.demo(), viewport)`
+2. Properties panel waits, then searches recursively for the element instance
+3. If not found, retries with delays to handle async rendering
+4. Once found, extracts and displays element properties