- Postgres: every table has a uuid `id` (gen_random_uuid()); the event
store keeps its relay order in `seq`, and the lookup tables their
uniqueness in constraints of their own.
- MongoDB: `_id` is Mongo's ObjectId; `id` is the domain id (the same
uuid as the aggregate's stream in Postgres), unique, and every query
goes by it. Production starts from empty databases.
- Web: linking tickets and hanging one from a parent are picked from a
searchable select (links across projects, parents within the project)
instead of typing a key; every checkbox is @pi/ui's pi-checkbox.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Josep Piguillem
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