fix(release): repair contract eval references

.github/workflows/publish.yml

@@ -107,7 +107,7 @@ jobs:
         run: bun run contract-eval
         env:
           GH_MODELS_TOKEN: ${{ secrets.GH_MODELS_TOKEN }}
-          CONTRACT_EVAL_MODEL: ${{ vars.CONTRACT_EVAL_MODEL || 'openai/gpt-4.1-mini' }}
+          GH_MODELS_MODEL: ${{ vars.GH_MODELS_MODEL || 'gpt-5-mini' }}
 
       - name: Bump version, commit, and tag
         if: inputs.channel != 'existing'
@@ -229,7 +229,7 @@ jobs:
         run: bun run contract-eval
         env:
           GH_MODELS_TOKEN: ${{ secrets.GH_MODELS_TOKEN }}
-          CONTRACT_EVAL_MODEL: ${{ vars.CONTRACT_EVAL_MODEL || 'openai/gpt-4.1-mini' }}
+          GH_MODELS_MODEL: ${{ vars.GH_MODELS_MODEL || 'gpt-5-mini' }}
 
       - name: Publish to npm
         run: |

examples/contract/evals/release-gate.eval.yaml

@@ -4,7 +4,7 @@ environment:
   type: host
   workdir: ../workspace-template
 providers:
-  - github-models-contract
+  - gh-models
 prompts:
   - "{{ input }}"
 tests:

examples/contract/evals/repo-materialization.eval.yaml

@@ -13,7 +13,7 @@ environment:
       - 21a34daed7ebcfe36cbed053607622a55e5e94cb
     cwd: "."
 providers:
-  - github-models-contract
+  - gh-models
 prompts:
   - "{{ input }}"
 tests:

examples/contract/evals/script-grader-contract.eval.yaml

@@ -1,7 +1,7 @@
 name: script-grader-contract
 description: Release gate verifying the script-grader stdin payload contract.
 providers:
-  - github-models-contract
+  - gh-models
 prompts:
   - "{{ input }}"
 tests:

scripts/run-contract-eval.ts

@@ -10,12 +10,12 @@
  * GH_MODELS_TOKEN=$(gh auth token) bun run contract-eval
  */
 
-process.env.CONTRACT_EVAL_MODEL ||= 'openai/gpt-4.1-mini';
+process.env.GH_MODELS_MODEL ||= 'gpt-5-mini';
 
 const evalFiles = [
   'examples/contract/evals/release-gate.eval.yaml',
   'examples/contract/evals/repo-materialization.eval.yaml',
-  'examples/contract/evals/code-grader-contract.eval.yaml',
+  'examples/contract/evals/script-grader-contract.eval.yaml',
 ];
 
 for (const evalFile of evalFiles) {
@@ -27,7 +27,9 @@ for (const evalFile of evalFiles) {
       'eval',
       evalFile,
       '--provider',
-      'github-models-contract',
+      'gh-models',
+      '--grader-provider',
+      'gh-models',
       '--threshold',
       '1',
     ],