- snapshot.ts: ref locators, cursor-interactive scan, and cursor locator
now use target (frame-aware) instead of page — fixes @ref clicking in iframes
- browser-manager.ts: getActiveFrameOrPage auto-recovers from detached frames
via isDetached() check
- meta-commands.ts: state load resets activeFrame, elementHandle disposed after
contentFrame(), state file schema validation (cookies + pages arrays),
filter empty pipe segments in chain tokenizer
- write-commands.ts: upload command uses target.locator() for frame support
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>