flakeEntryRows() now appends the linked flake's loras + prompts
(post-override) when a host flake has a flake_link. Effective values
use the same precedence as the backend's _apply_flake_link:
per-grid override > yaml flake_link default > linked flake's own default.
Layout:
- Linked loras are labeled "[linked] <name> [<strength>]".
- Linked prompts are grouped as "<host> · linked: <target_basename>"
with the effective variant choice suffix appended.
- Per-variant-group positive/negative prompts on the linked flake are
also surfaced when a choice is selected.
These rows flow through the existing common/combo bucket split — a
linked flake on a Flake Stack contribution shows on the right (common)
panel; one on a Flake Combo grid item shows on the left (combo).
Refs #232, closes#236