ba1de5f87b
Found by running the CLI live against a scratch project: - hook_input() blocked forever on an open stdin pipe with no data. A real hook writes JSON and closes the pipe, but any manual invocation hung; now polled with select() and never blocks. - the open-thread snapshot was filling with progress lines and file-modification lists -- v1's exact failure -- so it now filters turns through the same hard-drop rules the capture gate uses. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>