debug: enable show_full_output to expose actual Claude error

Author: neuromechanist

.github/workflows/claude.yml

@@ -77,6 +77,7 @@ jobs:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           github_token: ${{ secrets.GITHUB_TOKEN }}
           allowed_non_write_users: "*"
+          show_full_output: "true"
           claude_args: |
             --model haiku
 
@@ -137,5 +138,6 @@ jobs:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           github_token: ${{ secrets.GITHUB_TOKEN }}
           allowed_non_write_users: "*"
+          show_full_output: "true"
           claude_args: |
             --model haiku