## Context
Logic functions can declare workflow inputs typed as records or arrays
of records (e.g. the People Data Labs enrichment functions), but the
workflow builder rendered those as a plain text input with a variable
picker, which is not usable.
## What this does
- Adds an `objectUniversalIdentifier` link on input schema properties,
so a record-typed input is tied to a workspace object.
- The SDK build infers it from a
`TwentyRecord<'objectUniversalIdentifier'>` marker type in the handler
signature, reading the object's universal identifier straight from the
source; explicit input schemas can still set the field directly.
- The workflow builder renders these inputs as a single record picker or
a record multi-select with the variable picker on the right. Selected
records are stored as record ids; `TwentyRecord<UID>` is a branded
`string`, so the handler signature reflects that it receives ids (a
bound variable resolves to whatever the referenced step produced).
- The multi-select collapses overflowing chips into a `+N` badge
(reusing `ExpandableList`) and its variable picker offers both record
objects and fields.
- Updates the People Data Labs enrichment inputs as the reference
implementation.
<img width="802" height="824" alt="CleanShot 2026-06-12 at 16 54 10@2x"
src="https://github.com/user-attachments/assets/a0896d74-0aab-49bd-a173-14c578a2e533"
/>
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## Problem
`any[]` type prevented value input:
<img width="544" height="349" alt="Screenshot 2026-06-01 at 14 08 47"
src="https://github.com/user-attachments/assets/956238d0-6fea-4be1-b75a-ab0e6e6424ac"
/>
In the workflow Code action (and the Logic Function action), parameters
typed as any[], string[], etc. rendered as an empty grey box instead of
an "Enter value" text input. After any debounced save, even a properly
initialised array field would also collapse into an empty container.
The Array<T> / ReadonlyArray<T> generic form fell through to a generic
text input by accident (which "looked" right, but for the wrong reason —
no schema info downstream).
## Root causes
Three places treated arrays as plain objects via @sniptt/guards'
isObject (which is true for arrays):
1. WorkflowEditActionCodeFields.tsx — arrays went into the nested-fields
branch; Object.entries([]) is empty → empty container, no placeholder.
2. mergeDefaultFunctionInputAndFunctionInput.ts — recursed into arrays
during merge, turning [] into {}. Triggered on every debounced save, so
the bug surfaced after any edit.
3. get-function-input-schema.ts — only handled T[]
(SyntaxKind.ArrayType); Array<T> (SyntaxKind.TypeReference) was
unrecognised, so the form lost any item-type info.
Raphaël Bosi
