ci: use Google API key for CodeBoarding

Amp-Thread-ID: https://ampcode.com/threads/T-019ed0f0-d9f9-75da-a034-cbfda2dcd6d1
Co-authored-by: Amp <amp@ampcode.com>

Author: ivanmilevtues

.github/workflows/codeboarding-sync.yml

@@ -22,7 +22,6 @@ on:
 
 permissions:
   contents: write   # commit the generated baseline + docs to the branch
-  id-token: write   # mint a GitHub OIDC token for the free hosted tier (omit if you set a key/license)
 
 concurrency:
   # Serialize against itself so a push landing mid-run can't make two commits.
@@ -37,5 +36,6 @@ jobs:
       - uses: CodeBoarding/CodeBoarding-action@v1
         with:
           mode: sync
-          license_key: ${{ secrets.CODEBOARDING_LICENSE }}
+          llm_provider: google
+          llm_api_key: ${{ secrets.GOOGLE_API_KEY }}
           force_full: ${{ inputs.force_full || false }}

.github/workflows/codeboarding.yml

@@ -22,13 +22,24 @@ jobs:
       contents: read        # check out the repo + read the committed baseline (no writes in review mode)
       pull-requests: write  # post the architecture-diff PR comment
       issues: write         # the /codeboarding issue_comment trigger + comment API
-      id-token: write       # mint a GitHub OIDC token for the free hosted tier (write is the only level for id-token)
     if: >
       (github.event_name == 'pull_request' && github.event.action != 'closed' && github.event.pull_request.draft == false) ||
       (github.event_name == 'issue_comment' && github.event.issue.pull_request != null &&
        startsWith(github.event.comment.body, '/codeboarding') &&
        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association))
     steps:
+      - name: Verify Google API key secret is available
+        shell: bash
+        env:
+          GOOGLE_API_KEY: ${{ secrets.GOOGLE_API_KEY }}
+        run: |
+          if [ -z "${GOOGLE_API_KEY}" ]; then
+            echo "::error::GOOGLE_API_KEY secret is missing or empty."
+            exit 1
+          fi
+          echo "GOOGLE_API_KEY secret is present."
+
       - uses: CodeBoarding/CodeBoarding-action@v1
         with:
-          license_key: ${{ secrets.CODEBOARDING_LICENSE }}
+          llm_provider: google
+          llm_api_key: ${{ secrets.GOOGLE_API_KEY }}