All previously-nullable account_id columns are now NOT NULL.
tree_embeddings and feedback backfilled before constraint applied.
Global content assigned to platform sentinel account (00000000-...-0001)
in preceding migration.
Tables updated: users, trees, tree_categories, tree_tags,
step_categories, step_library, tree_embeddings, feedback
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Creates template_trees and platform_steps (no account_id, no RLS).
Migrates is_default=TRUE trees and public steps into them.
Creates sentinel platform account (00000000-...-0001) for global
tree_categories, tree_tags, step_categories, step_library, and
is_default trees — clearing all NULL account_id rows in those tables
as prerequisite for Group 9 SET NOT NULL.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Zero rows in production — this is a schema-only migration in practice.
team_id kept for app code compatibility. Drop deferred to later cleanup.
Backfill: team_id → team admin user → account_id; fallback: created_by.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
team_id is kept in all three tables — drop deferred until app code
is fully migrated off team_id references.
Tables: script_builder_sessions, script_templates, script_generations
Backfill: user_id/created_by → users.account_id
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
psa_post_log: backfill via psa_connection, fallback to posted_by user
psa_member_mappings: backfill via psa_connection
notification_logs: backfill via notification_config
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Backfill from rater/user's account_id (not the step's account_id).
This is an explicit design decision — step rating data is attributed
to the account that performed the rating.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
