feat(db): add template-mirror tracking columns

db/migrations/20260425120000_add_template_mirror_tracking.sql

@@ -0,0 +1,69 @@
+-- migrate:up
+
+-- The schema-mirror feature lets a template agent (e.g. examples/personal-finance)
+-- own a canonical set of entity types, relationship types, classifiers and
+-- watcher definitions in its template org and mirror them into each user's
+-- personal org when they install the agent. The two new columns record the
+-- provenance of mirrored rows so they can be re-synced on template updates and
+-- treated as read-only by the user-org owner.
+--
+-- managed_by_template_agent_id: the agents.id (in the template org) that owns
+--   this row. NULL for rows authored by the user themselves.
+-- source_template_org_id: the organization.id of the template org. Pairs with
+--   the agent_id so a user can re-sync against the right source even if the
+--   template agent is later renamed.
+
+ALTER TABLE public.entity_types
+    ADD COLUMN IF NOT EXISTS managed_by_template_agent_id text,
+    ADD COLUMN IF NOT EXISTS source_template_org_id text;
+
+ALTER TABLE public.entity_relationship_types
+    ADD COLUMN IF NOT EXISTS managed_by_template_agent_id text,
+    ADD COLUMN IF NOT EXISTS source_template_org_id text;
+
+ALTER TABLE public.event_classifiers
+    ADD COLUMN IF NOT EXISTS managed_by_template_agent_id text,
+    ADD COLUMN IF NOT EXISTS source_template_org_id text;
+
+ALTER TABLE public.watchers
+    ADD COLUMN IF NOT EXISTS managed_by_template_agent_id text,
+    ADD COLUMN IF NOT EXISTS source_template_org_id text;
+
+CREATE INDEX IF NOT EXISTS idx_entity_types_template_agent_id
+    ON public.entity_types (managed_by_template_agent_id)
+    WHERE managed_by_template_agent_id IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_entity_relationship_types_template_agent_id
+    ON public.entity_relationship_types (managed_by_template_agent_id)
+    WHERE managed_by_template_agent_id IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_event_classifiers_template_agent_id
+    ON public.event_classifiers (managed_by_template_agent_id)
+    WHERE managed_by_template_agent_id IS NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_watchers_template_agent_id
+    ON public.watchers (managed_by_template_agent_id)
+    WHERE managed_by_template_agent_id IS NOT NULL;
+
+-- migrate:down
+
+DROP INDEX IF EXISTS public.idx_watchers_template_agent_id;
+DROP INDEX IF EXISTS public.idx_event_classifiers_template_agent_id;
+DROP INDEX IF EXISTS public.idx_entity_relationship_types_template_agent_id;
+DROP INDEX IF EXISTS public.idx_entity_types_template_agent_id;
+
+ALTER TABLE public.watchers
+    DROP COLUMN IF EXISTS source_template_org_id,
+    DROP COLUMN IF EXISTS managed_by_template_agent_id;
+
+ALTER TABLE public.event_classifiers
+    DROP COLUMN IF EXISTS source_template_org_id,
+    DROP COLUMN IF EXISTS managed_by_template_agent_id;
+
+ALTER TABLE public.entity_relationship_types
+    DROP COLUMN IF EXISTS source_template_org_id,
+    DROP COLUMN IF EXISTS managed_by_template_agent_id;
+
+ALTER TABLE public.entity_types
+    DROP COLUMN IF EXISTS source_template_org_id,
+    DROP COLUMN IF EXISTS managed_by_template_agent_id;