Resolves a same-day numbering collision: the prior session produced
ADR-0080 + ADR-0081 (geometric stress field, falsified) in
docs/decisions/ while the frontier-provider-adapters work was
authored as ADR-0081 in a newly-created docs/adr/ directory,
unaware of the concurrent track.
This commit takes the minimum-blast-radius fix:
- docs/adr/ADR-0081-...md → docs/adr/ADR-0082-...md
- Update title header to ADR-0082, add "Renumbered from" breadcrumb
- Update the two source-file docstrings that cite the ADR number
(providers.py, model_registry.py)
The "two ADR directories" question (docs/adr/ vs docs/decisions/)
is NOT resolved here — docs/adr/ now has exactly one entry, while
docs/decisions/ is the canonical location per CLAUDE.md. A future
PR should either consolidate or document the split; this commit
just unblocks the immediate naming collision.
Out of scope:
- Consolidating directories
- Renumbering anything in docs/decisions/
- Re-numbering on the dev's local main (already pulled into this branch)
