Simplify LineupMarker and add ListLineupMarkers

[jeremy]

Summary

• Rewrite LineupMarker struct to match actual API shape (5 fields: id, name, date, created_at, updated_at — the prior model had rich recording-style fields the API never returns)
• Add ListLineupMarkers GET operation (non-paginated, returns all markers for account)
• Wire AutomationService into TS and Ruby clients for listLineupMarkers/list_lineup_markers
• Regenerate all 5 SDKs (179 operations, 39 services)
• Delete stale create/update fixtures, add list fixture

Create and update operations now correctly return empty bodies (204 No Content), matching the Rails controller's behavior.

Test plan

• make passes (Go vet/lint/tests, TS tests, Ruby tests, conformance 55 passed, drift checks)
• Go TestLineupMarker_UnmarshalList passes with list fixture
• TS automation.test.ts — list markers + empty list
• Ruby automation_service_test.rb — list markers + empty list
• No drift warnings for lineup operations

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Summary by cubic

Simplified LineupMarker to match the real API (id, name, date, created_at, updated_at) and added a non-paginated account-wide listing. Create/update now return 204 No Content, and the new list is available across all SDKs.

• New Features

  • Added ListLineupMarkers (GET /{accountId}/lineup/markers.json) under Automation with retry.
  • SDK accessors: Go LineupService.ListMarkers, TypeScript client.automation.listLineupMarkers(), Ruby account.automation.list_lineup_markers, plus Kotlin/Swift Automation services.

• Migration

  • LineupMarker now only includes: id, name, date, created_at, updated_at. Remove uses of prior fields (e.g., status, color, title, creator, parent, bucket, URLs).
  • Create/update endpoints return 204 No Content; stop reading response bodies.

^{Written for commit 5e0692b. Summary will update on new commits.}

[github-actions]

## Spec Change Impact

### Changes
- **Added:** `ListLineupMarkers` operation to the API.
- **Modified:** `LineupMarker` type was simplified (specific changes not detailed in the diff).
- No operations or types were removed.

### Impact
- **SDK Regeneration Required:** All SDKs need to be updated to include the new operation and type modification.
- **Breaking Change:** No breaking changes, as no operations/types/fields were removed.

### SDK Checklist
- [ ] Go
- [ ] TypeScript
- [ ] Ruby
- [ ] Kotlin
- [ ] Swift

[github-actions]

⚠️ Potential breaking changes detected:

• LineupMarker type fields have been renamed and removed: 'Status', 'Color', 'Title', 'StartsOn', 'EndsOn', 'Description', 'Type', 'URL', 'AppURL', 'Creator', 'Parent', 'Bucket' were removed or renamed to 'Name', 'Date'. This breaks compatibility with existing consumers relying on the removed fields.
• LineupService method DeleteMarker no longer provides lineupMarkerFromGenerated due to changes in response handling for CreateLineupMarker and UpdateLineupMarker, altering behavior for consumers relying on previous response structures.
• Retry behavior explicitly added for ListLineupMarkers operation with exponential retry on certain errors (e.g., 429, 503). Modifies default invocation expectations for API clients using automated retries.

Review carefully before merging. Consider a major version bump.

[cubic-dev-ai]

No issues found across 33 files

[Copilot]

Pull request overview

Updates the Lineup Marker API modeling to match the actual response shape and introduces a new account-scoped “list markers” operation, then regenerates/rewires the affected SDK surfaces (notably adding an Automation service in TS/Ruby/Swift/Kotlin) and refreshes fixtures/tests accordingly.

Changes:

• Add ListLineupMarkers (GET /lineup/markers.json) across the spec + generated SDKs.
• Simplify LineupMarker to the 5 fields the API returns (id, name, date, created_at, updated_at) and remove stale create/update fixtures.
• Wire new AutomationService accessors in TS/Ruby/Swift/Kotlin; add Go wrapper LineupService.ListMarkers and update tests/route mappings.

Reviewed changes

Copilot reviewed 15 out of 33 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
typescript/tests/services/automation.test.ts	Adds MSW-backed tests for automation.listLineupMarkers() (non-empty + empty).
typescript/src/index.ts	Re-exports the generated AutomationService and LineupMarker type.
typescript/src/client.ts	Adds client.automation accessor wired to generated Automation service.
typescript/src/generated/services/automation.ts	Implements listLineupMarkers() against /lineup/markers.json returning LineupMarker[].
typescript/src/generated/schema.d.ts	Adds ListLineupMarkers operation + simplified LineupMarker schema + response content type.
typescript/src/generated/path-mapping.ts	Maps GET /{accountId}/lineup/markers.json to ListLineupMarkers.
typescript/src/generated/openapi-stripped.json	Adds the ListLineupMarkers path + simplified LineupMarker schema.
typescript/src/generated/metadata.json	Adds retry metadata for ListLineupMarkers.
swift/Sources/Basecamp/Generated/Services/AutomationService.swift	Adds Swift AutomationService with listLineupMarkers().
swift/Sources/Basecamp/Generated/Models/LineupMarker.swift	Adds simplified Swift LineupMarker model.
swift/Sources/Basecamp/Generated/AccountClient+Services.swift	Exposes account.automation accessor.
swift/Sources/Basecamp/Generated/Metadata.swift	Adds retry config entry for ListLineupMarkers.
kotlin/sdk/src/commonMain/.../services/automation.kt	Adds Kotlin AutomationService listLineupMarkers().
kotlin/sdk/src/commonMain/.../models/LineupMarker.kt	Adds simplified Kotlin LineupMarker model.
kotlin/sdk/src/commonMain/.../ServiceAccessors.kt	Exposes AccountClient.automation accessor.
kotlin/sdk/src/commonMain/.../Metadata.kt	Adds retry config entry for ListLineupMarkers.
ruby/lib/basecamp/generated/services/automation_service.rb	Adds Ruby AutomationService list_lineup_markers.
ruby/lib/basecamp/client.rb	Adds automation accessor to the Ruby AccountClient.
ruby/lib/basecamp/generated/types.rb	Adds simplified Ruby Types::LineupMarker type.
ruby/lib/basecamp/generated/metadata.json	Adds retry metadata for ListLineupMarkers.
ruby/test/basecamp/services/automation_service_test.rb	Adds Ruby tests for listing markers (non-empty + empty).
spec/basecamp.smithy	Adds ListLineupMarkers operation + simplifies LineupMarker shape.
spec/overlays/tags.smithy	Tags ListLineupMarkers under Automation.
spec/fixtures/lineup/list.json	Adds list fixture matching the simplified marker shape.
spec/fixtures/lineup/create.json	Removes stale create fixture (no longer returned by API).
spec/fixtures/lineup/update.json	Removes stale update fixture (no longer returned by API).
openapi.json	Adds GET /{accountId}/lineup/markers.json + simplified LineupMarker schema.
go/pkg/generated/client.gen.go	Adds generated Go client support for ListLineupMarkers and LineupMarker.
go/pkg/basecamp/lineup.go	Simplifies Go LineupMarker + adds LineupService.ListMarkers().
go/pkg/basecamp/lineup_test.go	Updates Go fixture test to unmarshal the list response.
go/pkg/basecamp/url-routes.json	Adds GET operation for lineup markers and corrects CloneTool route to account-scope.
behavior-model.json	Adds behavior metadata for ListLineupMarkers (readonly + retry config).

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