- add documentation governance and cleanup audit documents
- update README and docs index to distinguish current vs historical sources
- move superseded planning, SBAS, Gamma, and experiment notes into docs/archive
- fix remaining archive text garbling in two documents
- replace rewrite/clean transitional panel files with canonical filenames
- update imports and navigation architecture notes to match runtime truth
- ignore local .codex_tmp workspace artifacts
- add one-time base DEM preparation utility and prepared-first DEM resolution
- support geocode resume/full-geocode and guard large unprepared DEMs
- repair missing completion files during in-place ISCE2 publish rebuild
- add ISCE2 stabilization update log