The parser's regex patterns used `[^<]*` and `[^<]+` which fail immediately
when content contains any `<` character (like nested tags or code snippets).
Example failure case:
```xml
<investigated>
<item>Checked parser.ts</item>
</investigated>
```
The `[^<]*` pattern stops at the first `<` of `<item>`, causing extractField()
to return null even though valid content exists.
## Changes
- `extractField()`: Changed from `[^<]*` to `[\s\S]*?` (non-greedy match any char)
- `extractArrayElements()`: Changed from `[^<]+` to `[\s\S]*?` for both array and element patterns
The `[\s\S]*?` pattern matches any character including newlines, non-greedily,
allowing nested XML tags to be captured correctly.
Fixes#798
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Glucksberg
256ebcead0