Seed the public catalog from domain/library.ts

- Catalog table ids (device_categories, port_types, cable_types,
  device_templates) switch from uuid to text so the existing stable,
  human-readable ids (pt-hdmi, dt-display, ...) survive the move
  instead of every diagram's references silently orphaning.
- supabase/seed.sql is generated (scripts/generate-seed.mjs), not
  hand-written, so the seed data can't drift from the actual source of
  truth in domain/library.ts. Re-run the script after editing the
  built-in library.
- Also committing ideas.md/organized-ideas.md, which have been driving
  every backend decision this whole project but were never actually
  checked in.

RLS test suite re-run clean (23/23) after both the schema change and
the seed.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017DUU6CnxECCDeqDNYJgr5x

supabase/migrations/20260908033553_catalog_text_ids.sql

@@ -0,0 +1,96 @@
+-- Switch catalog table ids from uuid to text.
+--
+-- The app's built-in library (domain/library.ts) has always used stable,
+-- human-readable string ids ('pt-hdmi', 'dt-display', 'ct-xlr', ...), and
+-- existing diagrams (including everything created locally so far) reference
+-- port/cable/category/device types by exactly those ids. Seeding the public
+-- catalog with fresh uuids instead would silently orphan every one of those
+-- references. Tables are empty at this point (catalog data hasn't been
+-- seeded yet), so this is a pure schema change, not a data migration.
+--
+-- manufacturers and device_template_ports keep uuid ids — nothing
+-- referenced manufacturers before now (it's a brand new table), and a
+-- template's ports were never independently referenced by id (placing a
+-- device already copies ports with a fresh id, discarding the template
+-- port's original id — see createDeviceFromTemplate).
+
+-- Drop FKs that depend on the columns we're about to retype.
+alter table public.device_template_ports drop constraint device_template_ports_device_template_id_fkey;
+alter table public.device_template_ports drop constraint device_template_ports_port_type_id_fkey;
+alter table public.device_templates drop constraint device_templates_category_id_fkey;
+
+-- device_template_ports' policies join back to device_templates.id, which
+-- Postgres treats as a dependency that blocks ALTER TYPE on that column —
+-- drop them here, recreate (verbatim) at the end.
+drop policy "device_template_ports_select" on public.device_template_ports;
+drop policy "device_template_ports_insert" on public.device_template_ports;
+drop policy "device_template_ports_update" on public.device_template_ports;
+drop policy "device_template_ports_delete" on public.device_template_ports;
+
+-- Retype the catalog primary keys.
+alter table public.device_categories alter column id drop default;
+alter table public.device_categories alter column id type text;
+
+alter table public.port_types alter column id drop default;
+alter table public.port_types alter column id type text;
+
+alter table public.cable_types alter column id drop default;
+alter table public.cable_types alter column id type text;
+
+alter table public.device_templates alter column id drop default;
+alter table public.device_templates alter column id type text;
+
+-- Retype the columns that reference them.
+alter table public.device_templates alter column category_id type text;
+alter table public.device_template_ports alter column device_template_id type text;
+alter table public.device_template_ports alter column port_type_id type text;
+
+-- catalog_submissions.entity_id is polymorphic (device_template/port_type/
+-- cable_type/device_category all now text ids; manufacturer stays uuid, but
+-- a uuid string is still valid text) — no FK constraint on it to begin with.
+alter table public.catalog_submissions alter column entity_id type text;
+
+-- Recreate the FKs.
+alter table public.device_templates
+  add constraint device_templates_category_id_fkey foreign key (category_id) references public.device_categories (id);
+alter table public.device_template_ports
+  add constraint device_template_ports_device_template_id_fkey foreign key (device_template_id) references public.device_templates (id) on delete cascade;
+alter table public.device_template_ports
+  add constraint device_template_ports_port_type_id_fkey foreign key (port_type_id) references public.port_types (id);
+
+-- Recreate the four policies dropped above, verbatim.
+create policy "device_template_ports_select" on public.device_template_ports for select
+  using (
+    exists (
+      select 1 from public.device_templates dt
+      where dt.id = device_template_id
+        and (dt.is_public or dt.owner_id = auth.uid() or public.is_admin())
+    )
+  );
+
+create policy "device_template_ports_insert" on public.device_template_ports for insert
+  with check (
+    exists (
+      select 1 from public.device_templates dt
+      where dt.id = device_template_id
+        and ((dt.owner_id = auth.uid() and not dt.is_public) or public.is_admin())
+    )
+  );
+
+create policy "device_template_ports_update" on public.device_template_ports for update
+  using (
+    exists (
+      select 1 from public.device_templates dt
+      where dt.id = device_template_id
+        and ((dt.owner_id = auth.uid() and not dt.is_public) or public.is_admin())
+    )
+  );
+
+create policy "device_template_ports_delete" on public.device_template_ports for delete
+  using (
+    exists (
+      select 1 from public.device_templates dt
+      where dt.id = device_template_id
+        and ((dt.owner_id = auth.uid() and not dt.is_public) or public.is_admin())
+    )
+  );