Marie d8b494d530 Make subdomain minimum length configurable via env var (#23209)
## What

Introduces a `SUBDOMAIN_MIN_LENGTH` environment variable (default `3`)
controlling the minimum number of characters allowed for a workspace
subdomain.

Until now the minimum was hardcoded (`3`), baked into the shared
`SUBDOMAIN_PATTERN` regex.

## How

- Added the `SUBDOMAIN_MIN_LENGTH` config variable (default `3`) in
`config-variables.ts`.
- Relaxed `SUBDOMAIN_PATTERN` in `twenty-shared` to validate format and
max length only, so the minimum length policy now lives with the caller
instead of being embedded in the regex.
- `isSubdomainValid` now takes a `minLength` argument (defaulting to
`3`) and enforces it explicitly.
- `SubdomainManagerService` reads `SUBDOMAIN_MIN_LENGTH` from config and
passes it to every validation call, making the server the authoritative
source.

## Scope

Server-side only. The frontend validation schema keeps its default
`.min(3)` UX check and is unchanged; the server remains the source of
truth for what subdomains are accepted.

## Tests

- Updated the shared `isValidTwentySubdomain` tests to reflect that the
pattern no longer enforces a minimum length.
- Added tests for the configurable minimum in
`is-subdomain-valid.util.spec.ts`.
- Updated the service spec config mock to return a numeric value for
`SUBDOMAIN_MIN_LENGTH`.

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2026-08-06 11:03:18 +00:00
2026-06-11 11:02:28 +02:00

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  labelPlural: 'Deals',
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    { name: 'name', label: 'Name', type: FieldType.TEXT },
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