Follow-up to 821e768b. The previous fix flattened sub_process nodes
so all 16 operations of ENP-STEEL-BASIC became visible — but the
Tree Editor also shows the 26 `step` nodes that live under each
operation ("Ready For Blast / Blast", "Soak Clean / Electroclean /
Primary Rinse", etc.). The Simple Editor still hid those, so author
+ Tree Editor still disagreed by 26 rows.
New `_flatten_recipe_nodes(recipe)` helper walks DFS and surfaces
BOTH operations and their step children. Each operation is followed
immediately by its step children in sequence order so the editor
renders them as a contiguous block:
10. Ready For Steel Line
11. Cleaner [Steel Line]
↳ Soak Clean (S-3) [Steel Line › Cleaner]
↳ Electroclean (S-3) [Steel Line › Cleaner]
↳ Primary Rinse (S-4) [Steel Line › Cleaner]
15. Acid Dip (S-5) [Steel Line]
↳ Primary Rinse (S-6) [Steel Line › Acid Dip (S-5)]
...
Payload additions on each step:
- `node_type`: 'operation' | 'step'
- `is_substep`: True for steps (renders indented)
- `nested_under`: chained path (sub-process › operation for substeps,
sub-process for nested operations, '' for top-level operations)
UI: substep rows are indented 2.5rem, smaller font, no drag handle,
no numeric position. The "↳" indent glyph and a "[parent operation]"
chip make the parent-child relationship obvious. Substeps are not
draggable to keep the existing reorder semantics simple — Tree Editor
remains the home for structural changes.
Legacy `_flatten_recipe_operations` helper retained for back-compat
(it now delegates by filtering `node.node_type == 'operation'` from
the full walk).
ENP-STEEL-BASIC on entech: Simple Editor now shows 42 rows (was 10
before 821e768b, was 16 after 821e768b) — matches what the Tree
Editor displays exactly.
Tests: 10 total (was 7), 3 new cover the substep surfacing, path
chaining, and is_substep / node_type flags on the payload.
Module: fusion_plating 19.0.20.3.0 → 19.0.20.4.0.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2142a66bc0
