feat: add URL tooltips and improve link safety

Add tooltips showing full URL when hovering over links.
Add safety checks to only process local file paths:
- file:// protocol URLs
- absolute paths starting with /
- relative paths without protocol

Move preventDefault() after path validation to allow
external links to work normally.

Signed-off-by: Eric Wheeler <[email protected]>

Author: Eric Wheeler

webview-ui/src/components/common/MarkdownBlock.tsx

@@ -146,8 +146,18 @@ const MarkdownBlock = memo(({ markdown }: MarkdownBlockProps) => {
 					return (
 						<a
 							href={href}
+							title={href}
 							onClick={(e) => {
+								// Only process file:// protocol or local file paths
+								const isLocalPath =
+									href.startsWith("file://") || href.startsWith("/") || !href.includes("://")
+
+								if (!isLocalPath) {
+									return
+								}
+
 								e.preventDefault()
+
 								// Handle absolute vs project-relative paths
 								let filePath = href.replace("file://", "")