All 31 files from ideas/passepartout-economics/ promoted to ideas/ root.
- Subfolder's passepartout-economics.org (42-line index) renamed to
triad-index.org to avoid collision with root-level full doc
- index.org removed (redundant — triad-index.org replaces it)
- Root-level passepartout-economics.org: stripped file:passepartout-economics/
prefix from all cross-references (now simple file:foo.org links)
- compliance-framework-mapping.org: same prefix cleanup
- All internal file: links within the economics docs already used simple
names (no prefix) — they resolve correctly from ideas/ root
