[MetaROR] Ch5 Execution of Reproductions — author revisions

[LukasWallrich]

Author revisions for Chapter 5 (Execution of Reproductions) from the MetaROR reviews (R1).

• Section 5.4: Consider suggesting development of the reproduction protocol on randomly re-ordered data (preserves distributional information without directional results). (R1) (in Ch4/5: own paragraph for robustness reproductions; shuffled-data protocol suggestion (#18) #41)
• Section 5.2: Give the "Reproduction before Replication" subsection (robustness reproductions) its own paragraph. (R1) (in Ch4/5: own paragraph for robustness reproductions; shuffled-data protocol suggestion (#18) #41)

Handled in other issues:

• Discuss what "the same" means (or reference where it is discussed) → Content gaps
• Move/restructure Sections 5.2 and 5.3; merge Sections 5.5 (Deviations) and 5.6 (Analysis) → Structural reorganisation & scope
• Preregistration section angle/space (reviewer conflict R1↔R2) → Points for discussion
• Data-integrity ("reproduction light"), FAIR principles, "checking adherence to preregistration" → Content gaps