Rename code.cubecraftcreations.com -> code.cubecraftlabs.com in the
deployment guide and article links.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Migration script now resets SERIAL sequences (audit_log, context_files, etc.)
to max(existing_id) after copying rows. Without this, the sequence is still at
its post-schema-creation value and every INSERT hits a duplicate key error.