Add research project disclaimer to README

fix: scan full pane content for context %, pass smoke test 10.6

verify: pass smoke test 10.5 — screen change tracking works

verify: pass smoke test 10.4 — ralph detects window loss

verify: pass smoke test 10.3 — send pre-clear delivers text

verify: pass smoke test 10.2 — done-pattern auto-enables continuous check

fix: check full pane content for fatal patterns, pass smoke test 10.1

verify: pass Phase 9 — all 1098 tests green, CLI verified

feat: add help text disambiguation and preserve metadata in respawn

feat: add crash-safe state writes and window loss done-pattern check

feat: add CLI defaults and aliases (--max-iterations default 50, --worktree default True, ralph stop, heartbeat ls)

feat: add --max-context enforcement for ralph loop

feat: add pre-clear sequence (Escape+Ctrl-U) to tmux_send and --raw flag to send

feat: auto-enable --check-done-continuous when --done-pattern is set

feat: add fatal pattern detection (compaction kill) for ralph loop