Add STATUS.md + DataHub batch publishing guide

STATUS.md tracks shipped / in-progress / deferred per CLAUDE.md convention.
docs/datahub-batch.md lists the 25 history-bearing Root Dir paths to paste
into DataHub's Create-Post form. Other registry instructions (Hugging Face,
Kaggle, Zenodo) included for the next iteration.

STATUS.md

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+# calcfi-open-data — STATUS
+
+_Last updated: 2026-05-19 (initial scaffold + first push + 34 datasets generated)_
+
+## Shipped
+
+### Repo + scaffold
+- Public repo at https://github.com/jerehere/calcfi-open-data
+- README with primary-source matrix, quick-start (curl/Python/R), licensing, mirroring notes
+- LICENSE.md: CC0 on scaffold, CC BY 4.0 on data
+- Daily refresh workflow `.github/workflows/refresh.yml` at 06:00 UTC (after CalcFi's 05:00 UTC pull)
+- Frictionless Data Package per subdir (`datapackage.json` + `data.csv` + `README.md`)
+- Topics: open-data, personal-finance, dataset, frictionless-data, datapackage, economic-data, financial-data, fred, cc-by, public-data
+
+### Dataset coverage (34 series across 11 categories)
+- 25 series with full history (117k+ rows total)
+- 9 series with current-snapshot placeholders (history still accumulating on CalcFi side)
+
+| Category | Series | Status |
+|---|---|---|
+| Mortgage rates | 30-year-fixed, 15-year-fixed, 10-year-treasury | full history |
+| Interest rates | federal-funds-rate, prime-rate, 2-year-treasury | full history |
+| Inflation | cpi, pce | full history |
+| Employment | unemployment-rate, labor-force-participation, avg-hourly-earnings | full history |
+| Energy | crude-oil-wti, crude-oil-brent, us-regular-gas-price | full history |
+| FX | usd-eur, usd-gbp, usd-jpy | full history |
+| Credit | credit-card-apr, personal-loan-rate-24mo | full history |
+| Commodities | copper-price, corn-price | full history |
+| Global | us-gdp-per-capita, world-unemployment, eurozone-gdp-per-capita | annual history |
+| Crypto | bitcoin, ethereum, solana | snapshot only (history TBD) |
+| Deposit rates | savings-national-rate, money-market, cd-3mo, cd-12mo, cd-60mo | snapshot only |
+| Credit (auto) | auto-loan-rate-48mo | snapshot only |
+| Global (extra) | world-inflation | snapshot only |
+
+## In progress
+
+### Registry publishing (manual, user-driven)
+- DataHub.io: 25 history-bearing subdirs to publish (one post per Root Dir, see `docs/datahub-batch.md`)
+- Hugging Face Datasets: mirror via `huggingface-cli upload` (deferred)
+- Kaggle Datasets: one-time CSV upload per series (deferred)
+- Zenodo: connect repo, tag a release, get DOI (deferred)
+- re3data.org: registry form once 5+ external mirrors exist
+
+## Deferred (backlog)
+
+### Empty series — wait for CalcFi history accumulation
+- bitcoin, ethereum, solana (CoinGecko snapshots not archived yet)
+- savings/money-market/CD rates (FDIC manual update, no daily archive)
+- auto-loan-rate-48mo (FRED series available, not yet wired to history.csv endpoint)
+- world-inflation (World Bank, slow cadence)
+
+These will auto-populate on next daily refresh once CalcFi's history endpoint returns rows for them. No repo-side work needed.
+
+### Out of scope
+- Real-time intraday data (CalcFi is daily/weekly/monthly cadence by design)
+- Currency triangulation series (only majors USD-EUR/GBP/JPY)
+- US state-level CSVs (separate `calcfi.app/api/maps/{category}/csv` surface; could mirror later as `datasets/maps/{category}/` if useful)
+
+## Hard rules
+- No data transformations — mirror primary-source values verbatim
+- Provenance headers preserved in every CSV (#-prefixed lines)
+- License CC BY 4.0 always; attribution to CalcFi + primary source
+- Refresh workflow read-only against calcfi.app (no auth, no rate-limit gate)

docs/datahub-batch.md

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+# DataHub.io batch publishing
+
+DataHub.io requires one **post** per dataset, but all posts can point at the same GitHub repo (`jerehere/calcfi-open-data`) with different **Root Dir** values.
+
+## Form fields (every post uses these)
+
+- **Post Type:** Standard Dataset
+- **GitHub Account:** jerehere
+- **Repository:** calcfi-open-data
+- **Branch:** main
+- **Root Dir:** see batch list below (paste exactly, no trailing slash)
+
+## Batch list — 25 datasets with full history (publish these first)
+
+```
+datasets/30-year-fixed
+datasets/15-year-fixed
+datasets/10-year-treasury
+datasets/federal-funds-rate
+datasets/prime-rate
+datasets/2-year-treasury
+datasets/cpi
+datasets/pce
+datasets/unemployment-rate
+datasets/labor-force-participation
+datasets/avg-hourly-earnings
+datasets/crude-oil-wti
+datasets/crude-oil-brent
+datasets/us-regular-gas-price
+datasets/usd-eur
+datasets/usd-gbp
+datasets/usd-jpy
+datasets/credit-card-apr
+datasets/personal-loan-rate-24mo
+datasets/copper-price
+datasets/corn-price
+datasets/us-gdp-per-capita
+datasets/world-unemployment
+datasets/eurozone-gdp-per-capita
+```
+
+## Defer until CalcFi history accumulates (9 datasets, currently snapshot-only)
+
+```
+datasets/bitcoin
+datasets/ethereum
+datasets/solana
+datasets/savings-national-rate
+datasets/money-market-national-rate
+datasets/cd-3mo-national-rate
+datasets/cd-12mo-national-rate
+datasets/cd-60mo-national-rate
+datasets/auto-loan-rate-48mo
+datasets/world-inflation
+```
+
+## Recommended publishing cadence
+
+- Day 1: top 5 highest-traffic series (30-year-fixed, cpi, federal-funds-rate, unemployment-rate, 10-year-treasury)
+- Day 2-3: remaining 20 history-bearing series
+- Day 7+: re-run `node scripts/refresh.mjs` locally to see which deferred series now have history; publish those
+
+## After publishing
+
+Each DataHub post auto-syncs from GitHub on every push. The daily refresh workflow will keep all datasets current with zero manual work.
+
+## Other registries to mirror
+
+Same repo, different platforms:
+
+- **Hugging Face Datasets:** `huggingface-cli upload jerehere/calcfi-30y-mortgage datasets/30-year-fixed/data.csv`
+- **Kaggle:** create new dataset, upload `data.csv`, paste README content
+- **Zenodo:** connect repo, tag a release (`gh release create v0.1.0`), Zenodo creates DOI automatically
+- **re3data.org:** registry submission form once 3+ external mirrors exist