Source and database snapshots synced to private repositories

This round synced every product line to private repositories - 23 in total. The rule: push source files and database scripts only; node_modules, build output, desktop and browser binaries, installers, logs, profile caches and rendered media stay out, and any file over the size cap is dropped with the reason recorded.

Each repository was verified independently afterwards - branch exists, commit count matches the local clone, and sampled file hashes match - rather than trusting a successful push. A separate full bundle snapshot is kept for disaster recovery, restorable per repository.