Add object-type-aware deduplication and harden translation workflow in CRC

[gschwend]

• add conservative object type homogenization for stars, galaxies, QSOs, AGN, and Galactic objects
• validate and safely evaluate configurable translation rules
• normalize runtime schemas across crossmatch rounds
• filter deduplication graphs by object type and redefine excluded-row diagnostics
• bound transitive deduplication groups by representative radius
• improve tie, label-merge, distance, and translation diagnostics
• disable Rubin footprint generation by default
• add technical documentation for the crossmatching and deduplication design