SqliteSchemaHelper.getIndexes() drops every unnamed sqlite_autoindex_
entry before entity-generator ever sees it, so a table-level
UNIQUE(...) constraint with no separate named CREATE UNIQUE INDEX
(settings' UNIQUE(user_id, key) among ~40 others) never reached the
generated entity's uniques: metadata. Adds a general
RULE9_addImplicitUniqueConstraints (skips a column set identical to
the table's own primary key — AppSettings.key/Addons.id noise) fed by
a PRAGMA index_list/index_info scan, and regenerates every entity.
jubnl