Derive lesson numbers from position (reorder-proof cross-references) - #22
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…f cross-refs Make lesson ordering cheap to change (see docs/adr/0001): - Gapped `order` (position * 10) so a lesson can be inserted without renumbering every later one. - Stripped the "Lesson N: " prefix from all 34 titles — titles are the concept only; the number is derived from position in the sorted list and rendered by the site (LessonCard/LessonView/AppSidebar). - Cross-references resolve the target's current number/title at render time from its slug, so moving or inserting a lesson never edits another lesson's prose. - ADR 0001 + ordering-refactor handoff added under docs/. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Makes lesson ordering cheap to change, so inserting a lesson (e.g. an upcoming maze module) no longer means renumbering everything. See
docs/adr/0001-derive-lesson-order-from-position.mdfor the decision anddocs/handoffs/ordering-refactor.mdfor full scope.Changes
order— each lesson'sorderbecomesposition * 10(10, 20, … 340), same sequence, room to insert between any two.Lesson N:prefix from all 34 titles; the number is now derived from position in the sorted list and rendered by the site (LessonCard/LessonView/AppSidebar).#/lesson/<slug>reference's{n}/{title}to the target's current position at render time, so moving/inserting a lesson never edits another lesson's prose.docs/.Verification
No visible reorder: index and sidebar show lessons 1..34 in the same order with the same numbers as before.
npm run buildandnpm run lintpass.Base for the maze-module PR (#21), which stacks on top of this.
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