- GET /api/projects returns the shared global list; POST /api/projects
creates a project, deduped case-insensitively (F3).
- Repository find-or-create trims and matches on lower(name); a unique index
on lower(name) enforces the same rule at the DB (replacing the case-
sensitive column unique constraint) — migration 0001.
- ProjectAutocomplete: creatable autocomplete that lists projects, offers to
create an unknown name inline, and selects it without reload.
- Integration test (dedupe/list against Postgres) + component test.
