## Summary
Three related fixes to the auto-creation of People records from calendar
events and email messages, all centred on the data-quality problem of
contacts being created with missing or malformed names.
### 1. Enrich names on existing contacts (commit 1)
Previously: when an email or calendar import matched an existing Person
by email, the existing record was left untouched — even if the new
source carried a better name.
This is the root cause of contacts like `"Félix"` (no last name)
sticking around forever: the `To:`/`Cc:` headers of outbound emails
rarely include a display name, and Google Calendar only returns
`displayName` for attendees already in the organizer's address book. So
the first sighting often creates a Person as `{firstName: "felix",
lastName: ""}`, and a later inbound `From: "Félix Malfait"
<felix@twenty.com>` — which would have produced the right name — gets
silently dropped because the Person already exists.
The new `computePeopleToEnrichNames` bucket and
`CreatePersonService.enrichPeopleNames` method fill in missing
`firstName`/`lastName` fields from the new parsed name, with
conservative rules:
- Only enrich when the existing Person's `createdBy.source` is
`CALENDAR` or `EMAIL` — `MANUAL`, `IMPORT`, `API`, `WORKFLOW`, etc. are
never touched.
- Only fill empty fields. Non-empty `firstName`/`lastName` are never
overwritten.
- Soft-deleted contacts continue to be handled by the existing restore
path.
### 2. Handle multi-comma "Last, First, Suffix" display names (commit 2)
The comma-inverted swap in the parser previously required *exactly* one
comma. Names like `"Smith, Jane, Jr."`, `"O'Brien, Mary, MD"` or `"Doe,
John, Patrick"` fell through to the space-split fallback, which stored
the comma in `firstName` (e.g. `"Smith,"`) and produced garbled records
(the avatar shows a single "B" and the name reads `"Barbey, Julien"`
because the entire string lives in `firstName`).
The regex now splits on the first comma and treats the remainder as the
first name, collapsing any further commas to spaces. Single-comma
behaviour is unchanged.
### 3. Perf: skip the parser when an existing record is already
populated (commit 3)
`computePeopleToEnrichNames` runs on every cron-driven email/calendar
import batch. The first version called the display-name parser for every
matched existing person, even when both `firstName` and `lastName` were
already set — i.e. the steady-state case after the initial enrichment
pass.
Reordered so the cheap "both fields populated" check short-circuits
before any parsing happens. Same behaviour, fewer parser calls on the
hot path.
## Test plan
- [x] 8 new unit tests for the enrichment bucket: empty `lastName`
enrichment, both `EMAIL` and `CALENDAR` sources, non-overwrite of
non-empty fields, skip on `MANUAL`/`IMPORT`, skip when the new source
also has no last name, skip for soft-deleted, fill `firstName` while
preserving `lastName`, handle null `name` field
- [x] 5 new parser tests for multi-comma forms: `"Last, First, Suffix"`,
credential suffixes (`MD`), three-token forms, whitespace around inner
commas, `:GROUP` tag interaction
- [x] 1 new parser test on the single-comma path covering multi-word
first names (`"Smith, Mary Jane"`)
- [x] All 15 existing parser tests still pass
- [x] All 116 tests in `contact-creation-manager` pass
- [x] `npx nx typecheck twenty-server`
- [x] `npx oxlint --type-aware` + `npx oxfmt --check` on changed files
- [ ] Manual: trigger a fresh contact creation from an outbound email
with no display name, then a subsequent inbound email from the same
address with a full display name, and confirm the Person's last name
gets populated
