Per Andrey: CuasRtParameters should be instantiated like the other parameter
classes at CLTParameters:1175..1185 (img_dtt/ofp/imp/ilp/...), not nested
inside IntersceneMatchParameters. Changes:
- CLTParameters: new peer field curt, set/getProperties wiring, own
  "CUAS RT" dialog tab right after imp's questions/answers (tab content
  unchanged; tab position moves from inside imp's tab row to after it).
- IntersceneMatchParameters: the six curt wiring sites removed (field,
  dialogQ/A, set/getProperties, clone).
- Access rename: clt_parameters.imp.curt.X -> clt_parameters.curt.X
  (105 sites: OpticalFlow, CuasDetectRT, CuasPoseRT).
- corr-xml keys change _imp_curt_* -> _curt_*. getProperties keeps a legacy
  fallback (reads _imp_curt_* first, _curt_* overrides), so old configs
  still load unmigrated.
- NEW scripts/migrate_curt_config.py: renames _imp_curt_* keys in existing
  corr-xml files (in-place with .bak, --dry-run, idempotent, drops duplicate
  legacy entries with a warning). Validated on a copy of
  LV396-v013-...-POSEJP4-ENMB.corr-xml: 87 keys renamed, byte-identical
  otherwise.

Verified: mvn -DskipTests clean package OK; no imp.curt references remain.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>