Convert non-SQLite sources to SQLite before merge#36

Draft

mballance with Copilot wants to merge 4 commits into

copilot/fix-sqlitemerger-non-sqlite-sources

Commits on Feb 12, 2026

Initial plan
Copilot
committed
Initial plan for fixing SqliteMerger to accept non-SQLite sources

Copilot
and
mballance
committed
Implement conversion from MemUCIS to SqliteUCIS for merge operations

Copilot
and
mballance
committed
Address code review feedback - improve imports and preserve file handle metadata

Copilot
and
mballance
committed