fix: gracefully fall back to GITHUB_TOKEN when app secrets not configured

Makes GitHub App auth optional - uses GITHUB_TOKEN as fallback
when OCTAVIA_BOT_APP_ID is not set. This unblocks generation
until the GitHub App secrets are configured on this repo.

Co-Authored-By: AJ Steers <aj@airbyte.io>

Author: devin-ai-integration[bot]

.github/workflows/generate-command.yml

@@ -66,19 +66,28 @@ jobs:
             pull-requests: write
         steps:
             - name: Authenticate as GitHub App
-              if: ${{ !inputs.dry_run && github.event.inputs.pr != '' }}
+              if: ${{ !inputs.dry_run && github.event.inputs.pr != '' && secrets.OCTAVIA_BOT_APP_ID != '' }}
               uses: actions/create-github-app-token@v3
               id: get-app-token
               with:
                   app-id: ${{ secrets.OCTAVIA_BOT_APP_ID }}
                   private-key: ${{ secrets.OCTAVIA_BOT_PRIVATE_KEY }}
 
+            - name: Set working token
+              id: token
+              run: |
+                  if [ -n "${{ steps.get-app-token.outputs.token }}" ]; then
+                      echo "token=${{ steps.get-app-token.outputs.token }}" >> $GITHUB_OUTPUT
+                  else
+                      echo "token=${{ github.token }}" >> $GITHUB_OUTPUT
+                  fi
+
             - name: Post or append starting comment
               if: ${{ !inputs.dry_run && github.event.inputs.pr != '' }}
               id: start-comment
               uses: peter-evans/create-or-update-comment@v5
               with:
-                  token: ${{ steps.get-app-token.outputs.token }}
+                  token: ${{ steps.token.outputs.token }}
                   issue-number: ${{ github.event.inputs.pr }}
                   comment-id: ${{ github.event.inputs.comment-id || '' }}
                   body: |
@@ -92,7 +101,7 @@ jobs:
               if: ${{ !inputs.dry_run && github.event.inputs.pr != '' }}
               id: pr-branch
               env:
-                  GH_TOKEN: ${{ steps.get-app-token.outputs.token }}
+                  GH_TOKEN: ${{ steps.token.outputs.token }}
                   PR_NUMBER: ${{ github.event.inputs.pr }}
               run: |
                   PR_JSON=$(gh api repos/${{ github.repository }}/pulls/${PR_NUMBER})
@@ -109,7 +118,7 @@ jobs:
               with:
                   fetch-depth: 0
                   ref: ${{ steps.pr-branch.outputs.head_ref || '' }}
-                  token: ${{ steps.get-app-token.outputs.token || github.token }}
+                  token: ${{ steps.token.outputs.token || github.token }}
 
             - name: Install uv
               uses: astral-sh/setup-uv@v5
@@ -203,20 +212,12 @@ jobs:
                   git push
 
             # --- New PR mode: create a PR to main ---
-            - name: Authenticate as GitHub App for PR creation
-              if: ${{ !inputs.dry_run && steps.changes.outputs.has_changes == 'true' && github.event.inputs.pr == '' }}
-              uses: actions/create-github-app-token@v3
-              id: get-pr-token
-              with:
-                  app-id: ${{ secrets.OCTAVIA_BOT_APP_ID }}
-                  private-key: ${{ secrets.OCTAVIA_BOT_PRIVATE_KEY }}
-
             - name: Create Pull Request
               if: ${{ !inputs.dry_run && steps.changes.outputs.has_changes == 'true' && github.event.inputs.pr == '' }}
               id: create-pr
               uses: peter-evans/create-pull-request@v6
               with:
-                  token: ${{ steps.get-pr-token.outputs.token }}
+                  token: ${{ steps.token.outputs.token }}
                   commit-message: "chore: regenerate SDK with Speakeasy"
                   title: "chore: regenerate SDK with Speakeasy"
                   body: |
@@ -240,7 +241,7 @@ jobs:
               if: ${{ success() && !inputs.dry_run && github.event.inputs.pr != '' }}
               uses: peter-evans/create-or-update-comment@v5
               with:
-                  token: ${{ steps.get-app-token.outputs.token }}
+                  token: ${{ steps.token.outputs.token }}
                   comment-id: ${{ steps.start-comment.outputs.comment-id }}
                   reactions: hooray
                   body: |
@@ -250,7 +251,7 @@ jobs:
               if: ${{ failure() && !inputs.dry_run && github.event.inputs.pr != '' }}
               uses: peter-evans/create-or-update-comment@v5
               with:
-                  token: ${{ steps.get-app-token.outputs.token }}
+                  token: ${{ steps.token.outputs.token }}
                   comment-id: ${{ steps.start-comment.outputs.comment-id }}
                   reactions: confused
                   body: |