## What
Makes the app-installation version gate **workspace-scoped**. App
installation now validates a manifest's `engines.twenty` requirement
against the version the **target workspace has actually finished
upgrading to**, instead of the instance/server's inferred version.
## Why
The server binary and a given workspace's migration state can diverge.
In a multi-workspace deployment the instance can already report version
`X` while an individual workspace still hasn't completed its
workspace-scoped upgrade commands for `X` (it's mid-upgrade or a
migration failed). Gating on the instance version let an app that
requires `X` install into a workspace whose schema/metadata is
effectively still at `X-1`, which can break the app. The requirement
should be checked against what the *workspace* has completed, not what
the server reports.
## How
- **`UpgradeStatusService.getWorkspaceCompletedVersion(workspaceId)`**
(new): resolves the last fully-completed upgrade version for a workspace
by reading its upgrade cursor and walking the upgrade sequence:
- Returns the cursor's version when the cursor sits on the **last step
of its version segment** and its status is `completed`.
- Otherwise walks backwards to the previous fully-completed version
segment.
- Returns `null` when the cursor is missing, not found in the sequence,
or otherwise uninterpretable.
- **`ApplicationVersionValidationService`**:
- Adds `validateWorkspaceCompatibility({ requiredServerVersion,
workspaceId })`.
- Extracts the shared semver logic into a private
`validateVersionAgainstRange({ version, requiredVersionRange, scope })`
and makes error messages scope-aware (workspace vs. instance).
`validateServerCompatibility` is preserved and now delegates to it.
- New failure reason `INVALID_WORKSPACE_VERSION`.
- **`ApplicationInstallService`** now calls
`validateWorkspaceCompatibility` with the `workspaceId` instead of
`validateServerCompatibility`.
- **Exception plumbing**: new
`ApplicationExceptionCode.INVALID_WORKSPACE_VERSION`, surfaced as a
`UserInputError` (`BAD_USER_INPUT`) with a user-friendly message ("This
workspace's upgrade state could not be determined…"). The
tarball/registration path maps it onto the existing
`INVALID_SERVER_VERSION` registration code.
## Notes
- **Publishing (app registration) is intentionally not
workspace-gated.** The tarball/registration path
(`ApplicationTarballService`) still uses the instance-level
`validateServerCompatibility` check, not the new workspace-scoped one.
Publishing an app is not tied to any particular workspace's upgrade
state, so there is no workspace version to check at that point — the
workspace-completed-version gate only applies when installing an app
into a specific workspace.
## Testing
- Unit tests for `ApplicationVersionValidationService`
(`validateServerCompatibility` + new `validateWorkspaceCompatibility`)
covering: no requirement, invalid semver range, satisfied/unsatisfied
ranges, and the uninterpretable-cursor case.
- Unit tests for `UpgradeStatusService.getWorkspaceCompletedVersion`
against a three-segment mock upgrade sequence (multi-command version,
instance-only version, workspace-terminated version).
- New integration suite
`failing-app-installation-workspace-version.integration-spec.ts` (+
snapshots) exercising the real install flow: rejects installation when
the workspace hasn't completed the required version, and when the
workspace's upgrade cursor can't be interpreted. Adds a
`create-app-tarball.util.ts` test helper.
Paul Rastoin
628ab153a8