chore(ruby): upgrade Ruby SDK generator to IR v67

[devin-ai-integration]

Description

Upgrades the modern Ruby generator (generators/ruby-v2) to consume IR v67. This is the generic IR-version bump only — no behavioral/feature changes. The only structural difference between IR v66 and v67 is that the AvailabilityStatus enum gained values (a strict superset); ruby-v2 does not branch on availability status, so the full seed regen produces no output changes.

The IR-driven idempotency feature builds on top of this and lives in a separate PR (#17008), which is based on this branch and depends on it.

Changes Made

• Bump every @fern-fern/ir-sdk dependency under generators/ruby-v2/**/package.json from 66.x → 67.11.0 (base, model, sdk); reconciled pnpm-lock.yaml.
• seed/ruby-sdk-v2/seed.yml: irVersion: v66 → v67.
• migrateFromV67ToV66.ts: register RUBY_SDK in firstGeneratorVersionToConsumeNewIR as "1.16.0-rc.0" (next generator release, matching the TYPESCRIPT_SDK/PYTHON_SDK pattern) so the CLI feeds v67 IR instead of down-migrating to v66.
• Compile fix for the v67 type surface: ObjectProperty now requires defaultValue, so WrappedRequestGenerator.ts passes defaultValue: undefined at its two construction sites (preserves prior behavior).
• chore changelog entry under generators/ruby-v2/sdk/changes/unreleased/.
• Full seed regen for ruby-sdk-v2: 137/137 fixtures pass, zero generated-output diffs (confirming v67 is byte-identical to v66 for ruby-v2).
• Updated README.md generator (if applicable) — n/a

Testing

• Unit tests added/updated — @fern-api/ir-migrations (89) and @fern-api/api-workspace-commons suites pass; tsc compiles ruby-v2.
• Manual testing completed — pnpm seed test --generator ruby-sdk-v2 --local --skip-scripts → 137/137 pass with no output changes.

Link to Devin session: https://app.devin.ai/sessions/dcab1efb11c3438884ebf517443d6b5b
Requested by: @cadesark

[devin-ai-integration]

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[nitpickybot]

Mechanical IR v66→v67 bump for the Ruby v2 generator. Dependency versions, lockfile, seed config, and migration registration are consistent, and the compile fix for the new required defaultValue property preserves prior behavior. No issues found.

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[github-actions]

Docs Generation Benchmark Results

Comparing PR branch against median of 5 nightly run(s) on main (latest: 2026-07-10T05:18:08Z).

Fixture	main	PR	Delta
docs	241.5s (n=5)	235.0s (35 versions)	-6.5s (-2.7%)

Docs generation runs fern generate --docs --preview end-to-end against the benchmark fixture with 35 API versions (each version: markdown processing + OpenAPI-to-IR + FDR upload).
Delta is computed against the nightly baseline on main.
Baseline from nightly run(s) on main (latest: 2026-07-10T05:18:08Z). Trigger benchmark-baseline to refresh.
Last updated: 2026-07-10 23:27 UTC

[github-actions]

SDK Generation Benchmark Results

Comparing PR branch against median of 5 nightly run(s) on main (latest: 2026-07-10T05:18:08Z).

Full benchmark table (click to expand)

Generator	Spec	main (generator)	main (E2E)	PR (generator)	Delta
csharp-sdk	square	72s (n=5)	113s (n=5)	64s	-8s (-11.1%)
go-sdk	square	135s (n=5)	285s (n=5)	135s	+0s (+0.0%)
php-sdk	square	62s (n=5)	84s (n=5)	47s	-15s (-24.2%)
python-sdk	square	146s (n=5)	237s (n=5)	129s	-17s (-11.6%)
ruby-sdk-v2	square	92s (n=5)	124s (n=5)	82s	-10s (-10.9%)
rust-sdk	square	175s (n=5)	165s (n=5)	165s	-10s (-5.7%)
swift-sdk	square	61s (n=5)	437s (n=5)	52s	-9s (-14.8%)
ts-sdk	square	127s (n=5)	128s (n=5)	115s	-12s (-9.4%)

main (generator): generator-only time via --skip-scripts (includes Docker image build, container startup, IR parsing, and code generation — this is the same Docker-based flow customers use via fern generate). main (E2E): full customer-observable time including build/test scripts (nightly baseline, informational). Delta is computed against generator-only baseline.
⚠️ = generation exited with a non-zero exit code (timing may not reflect a successful run).
Baseline from nightly runs on main (latest: 2026-07-10T05:18:08Z). Trigger benchmark-baseline to refresh.
Last updated: 2026-07-10 23:28 UTC