[MetaROR] Ch4 Planning and Conducting — author revisions

Author revisions for **Chapter 4 (Planning and Conducting)** from the MetaROR reviews (R2).

- [ ] Figure 4.2: Simplify — currently too cluttered. Consider rotating to vertical, adding a vertical axis for "repetition complexity", and restructuring the numbered boxes. (R2)

**Handled in other issues:**
- Table 4.1 — shorten the "goals" column (e.g. remove "fear of the") → *Automatable tasks*
- Table 4.1 — move to Chapter 2 / combine with Table 2.1, present reproduction subcategories earlier → *Content gaps*
- Figure 4.2 vs Section 7.2 — unified treatment of divergent-result explanations → *Points for discussion*

Locate the Chapter 4 source and inspect Figure 4.2 in its current context. Review the R2 request and assess the proposed vertical layout, repetition-complexity axis, and numbered-box restructuring. Done means Figure 4.2 is less cluttered while preserving the chapter’s intended explanation.

Written by the indexing model from the issue text.