predicate alignment

Canonical: `ex:tree`

Predicates from the live registry whose trigram similarity to ex:tree is ≥ 0.55. Selecting an alias rewrites every live statement using it so it uses the canonical predicate instead, and files a closeMatch fact under ctx:user/merges.

tighter (0.45) · looser-only (0.70)

Predicate	Similarity	Live statements
`ex:in_tree`	0.727	32
`ex:tree_id`	0.727	12
`ex:in tree`	0.727	2
`ex:trees`	0.700	30
`ex:tree_type`	0.667	396
`ex:has_tree`	0.667	12
`ex:treeId`	0.636	14
`ex:tree_size`	0.615	4,166
`ex:role/tree`	0.615	1,350
`ex:tree size`	0.615	174
`ex:tree_name`	0.615	80
`ex:tree_note`	0.615	40
`ex:tree_data`	0.615	10
`ex:uses_tree`	0.615	4
`ex:tree name`	0.615	2
`ex:tree_line`	0.615	2
`ex:tree_exists`	0.615	2
`ex:tree_count`	0.571	10
`ex:tree_shows`	0.571	8
`ex:tree_owner`	0.571	8
`ex:tree_label`	0.571	8
`ex:tree_delta`	0.571	4
`ex:in_tree_of`	0.571	2
`ex:tree_names`	0.571	2
`ex:tied_to_tree`	0.571	2

Canonical: ex:tree

Canonical: `ex:tree`