fix(agent-runtime): drop stale judge prompt source check

MoltNet-Diary: 51aa123d-4fee-4e31-bb42-272479e221d3
Task-Group: issue-1174-judge-context-copy
Task-Completes: true

Author: legreffier[bot]

libs/agent-runtime/src/prompts/judge-eval-attempt.ts

@@ -63,9 +63,7 @@ export function buildJudgeEvalAttemptUserPrompt(
           ctx.workspace.mode === 'dedicated_worktree'
             ? `This attachment is a dedicated producer worktree${ctx.workspace.branch ? ` on branch \`${ctx.workspace.branch}\`` : ''}.`
             : ctx.workspace.mode === 'scratch_mount'
-              ? ctx.workspace.source === 'producer_copy'
-                ? 'This workspace is a fresh judge-owned scratch copy of the producer workspace.'
-                : 'This attachment is the producer scratch workspace mounted with shadow writes for safe inspection.'
+              ? 'This workspace is a fresh judge-owned scratch copy of the producer workspace.'
               : 'This attachment is the producer shared workspace mounted with shadow writes for safe inspection.',
           '',
         ].join('\n')