Files
rUv 81cc241b9e chore(repo): move v1/ → archive/v1/ + add archive/README.md (#430)
The Rust port at v2/ has been the primary codebase since the rename
in #427. The Python implementation at v1/ is no longer the active
target; the only load-bearing path is the deterministic proof bundle
at v1/data/proof/ (per ADR-011 / ADR-028 witness verification).

Move the whole Python tree into archive/v1/ and document the policy
in archive/README.md: no new features, bug fixes only when they affect
a still-load-bearing path (currently just the proof), CI continues to
verify the proof on every push and PR.

Path references updated in 26 files via path-pattern sed (only
matches v1/<known-child> patterns, never bare v1 or API URLs like
/api/v1/). Two double-prefix typos (archive/archive/v1/) caught and
hand-fixed in verify-pipeline.yml and ADR-011.

Validated:
- Python proof verify.py imports cleanly at archive/v1/data/proof/
  (numpy/scipy still required; CI installs requirements-lock.txt
  from archive/v1/ now)
- cargo test --workspace --no-default-features → 1,539 passed,
  0 failed, 8 ignored (unaffected by Python tree relocation)
- ESP32-S3 on COM7 untouched (no firmware paths changed)

After-merge: contributors should re-run any local `python v1/...`
commands as `python archive/v1/...` (CLAUDE.md and CHANGELOG already
updated).
2026-04-25 23:07:52 -04:00

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# Archive
Frozen, no-longer-active components of RuView preserved for historical
reference, reproducibility, and load-bearing legacy paths the active
codebase still depends on.
## What lives here
| Path | What it is | Why it's archived | Still load-bearing? |
|------|------------|-------------------|---------------------|
| `v1/` | Original Python implementation of RuView (CSI processing, hardware adapters, services, FastAPI) | Superseded by the Rust workspace at `v2/`; ~810× slower in benchmarks. Kept rather than deleted because the deterministic proof bundle (`v1/data/proof/`) is part of the pre-merge witness verification process per ADR-011 / ADR-028. | **Yes — for the proof bundle only.** Active code lives in `v2/`. |
## What "archived" means
- **Do not add new features here.** New work goes in `v2/`.
- **Do not refactor or modernize the archived code beyond what is
strictly necessary** to keep the load-bearing paths working. The
Python proof bundle is intentionally frozen so that its SHA-256
reproducibility holds across releases (per ADR-028's witness
verification requirement).
- **Bug fixes inside archived code are allowed** when the bug affects a
still-load-bearing path (currently: only the Python proof). All
other "bugs" in archived code are out-of-scope — they are part of
the historical record and any fix would unnecessarily churn the
witness hashes.
- **CI continues to verify the load-bearing paths.**
`.github/workflows/verify-pipeline.yml` runs the Python proof on
every push and PR; if you change anything inside `archive/v1/src/`
or `archive/v1/data/proof/`, expect the determinism check to flag
it.
## Quick reference for the load-bearing paths
```bash
# Run the deterministic Python proof (must print VERDICT: PASS)
python archive/v1/data/proof/verify.py
# Regenerate the expected hash (only if numpy/scipy version legitimately changed)
python archive/v1/data/proof/verify.py --generate-hash
# Run the full Python test suite (legacy, still maintained)
cd archive/v1&& python -m pytest tests/ -x -q
```
## Why we keep `v1/` rather than delete it
1. **Trust kill-switch.** The proof at `v1/data/proof/verify.py` feeds
a known reference signal through the full pipeline and hashes the
output. If the active code's behavior drifts, the hash changes and
CI fails. This is what stops accidental regression in the science
layer of the codebase.
2. **Witness verification.** ADR-028's witness-bundle process bundles
the proof, the rust workspace test results, and firmware hashes
into a tarball recipients can self-verify. Removing v1 would break
that chain.
3. **Historical reference.** ADR-011 documents the "no mocks in
production code" decision; the original violations and their fixes
live in this Python codebase. The ADRs reference these paths.
If the time comes to retire the proof bundle (e.g., a Rust port of
the proof exists and the Python version is no longer canonical), the
right move is a single follow-up that simultaneously: ports the
witness-bundle process, updates `verify-pipeline.yml`, and either
deletes `archive/v1/` or moves it to a separate read-only repository.
That decision belongs in its own ADR.
## See also
- `docs/adr/ADR-011-python-proof-of-reality-mock-elimination.md`
- `docs/adr/ADR-028-esp32-capability-audit.md`
- `archive/v1/data/proof/README.md` (if present)
- `docs/WITNESS-LOG-028.md`