docs: add implementation plan for story fix-and-re-evaluate loop

Closes the recursive-story-decomposition design spec's "fix-and-
re-evaluate loop has to become real" gap -- today NEEDS_FIX is a dead
end requiring manual human intervention. Design decision (re-point
story.RootTaskID at a fresh fix-attempt task, vs. spawning as a
dependent of a fixed root) made with user input before writing this
plan.

0 files changed, 0 insertions, 0 deletions