Borrow Scrapling's adaptive element finding, adapted to this project's
in-session AX-ref model. When a saved @ref's node is gone (or its identity
no longer matches) and the role/name/nth re-query also fails, score the
current page's candidate elements against an AX fingerprint captured at
snapshot time and relocate to the best match.
- New `adaptive` module: pure, browser-free scoring (role, accessible name
via Levenshtein, AX properties, ancestor-role LCS, parent/sibling) plus
pick_best with a high absolute threshold (0.70) AND a clear margin (0.15)
over the runner-up — so ambiguous twins are refused rather than mis-clicked,
matching the existing "fail loudly over wrong click" posture.
- Fingerprint captured during the existing AX-tree snapshot walk — no extra
CDP round-trips. TreeNode is AX-only (no DOM tag/attrs), so we use AX role
as the type and a few discriminating AX properties (value/url/level/checked);
DOM id/class would have cost an N×describeNode storm per snapshot.
- Wired into both resolve_element_center and resolve_element_object_id: on a
verify-identity mismatch or a stale-node fallback miss, relocation is tried
before erroring. A confident match overrides the identity guard; otherwise
the original error is surfaced. Opt out with AGENT_BROWSER_ADAPTIVE_REF=0.
README documents the new tuning knobs. Adds 9 unit tests; full suite 760 passed.
leeguooooo
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