fix: upgrade conjure-plugin config to v2 to enable stale file cleanup

[Leundai]

Summary

• Upgrade godel-conjure-plugin from 6.84.0 to 6.104.0 (v6.96.0+ required for v2 config support)
• Upgrade conjure-plugin.yml from version 1 to version 2 with output-dir: . and omit-top-level-project-dir: true
• Regenerate all Go code with the new plugin version
• Stale files automatically cleaned up (the root cause of the CI failure)

Context

The go-publish workflow in scout has been failing on every release since Jan 26 (~47 consecutive failures since combined-service@0.1082.1).

scout PR #10689 removed the LogicalSeriesService from the Conjure spec and renamed types (e.g. LogicalSeries → ExternalStorageLocator). When ./godelw conjure runs, it regenerates the type files with new names but does not delete the stale timeseries/logicalseries/services.conjure.go — causing the Go build to fail with:

undefined: api.CreateLogicalSeries
undefined: api.LogicalSeries
undefined: api.BatchCreateLogicalSeriesRequest
...

Root cause: godel-conjure-plugin has built-in stale file cleanup via computeFilesToDelete(), but:

1. It requires a v2 config (v1 configs hardcode skip-delete-generated-files: true during internal upgrade)
2. v2 config support was only added in v6.96.0 (repo was on 6.84.0)
3. v2 defaults to a different output directory (internal/generated/conjure/), so we set output-dir: . and omit-top-level-project-dir: true to preserve the existing file layout

Stale files removed

Key deletions (services/types removed from Conjure spec but lingering in the Go client):

• timeseries/logicalseries/services.conjure.go (the direct cause of CI failure)
• timeseries/archetype/ (entire directory — service was removed)
• datasource/logset/ (entire directory — service was removed)
• ingest/workflow/api/services.conjure.go
• Various embed.conjure.go and extensions.conjure.json files no longer generated by the new plugin version

Verified locally

$ ./godelw conjure   # stale services.conjure.go deleted
$ go mod tidy
$ go build ./...     # EXIT CODE: 0

Test plan

• Verified go build ./... passes locally after regeneration
• Merge this PR, then trigger go-publish workflow in scout (or wait for next release tag)
• Confirm the workflow passes end-to-end

🤖 Generated with Claude Code

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 1 additional finding.