docs(dev): normalize report and task filename examples

[basnijholt]

Summary

• normalize the shared-worktree report filename examples to one concrete set across the tracked dev docs and skill files
• normalize the shared-worktree task filename example to one concrete autogenerated example across the same files
• keep unchanged for single-agent flows

Verification

• repository commit hooks passed during On branch fix/report-task-examples
  Your branch is up to date with 'origin/fix/report-task-examples'.

nothing to commit, working tree clean