Context
-------
Closes the gap between "Trading212 provider yields Activities" and
"activities land in Wealthfolio with dedup". One generic pipeline
function works for every provider (Phase 2 IMAP ingest and Phase 3
CSV drop will reuse it).
This change
-----------
- `broker_sync/pipeline.py` — sync_provider_to_wealthfolio():
ensure accounts exist in Wealthfolio, fetch, dedup against the local
SQLite store, batch into Wealthfolio's CSV import at 200 rows each,
record successful imports in the dedup store with the returned
Wealthfolio activity id. Failed batches don't touch the dedup store
so the next run retries.
- Notes field stamped with `sync:<provider>:<external_id>` for human
auditability — NOT used for dedup (the SQLite store owns that).
- `broker_sync/cli.py` — new `trading212` subcommand driven by
T212_API_KEYS_JSON + WF_* + BROKER_SYNC_DATA_DIR env vars. Two modes:
`steady` fetches last 7 days; `backfill` pulls all history. Exits 0
on clean run, 1 if any batch failed, 2 on config errors.
- Pipeline tests with MockTransport: dedup-skip-then-import happy path
(verifies imported CSV contains only the unseen rows and all three
are recorded after the run); import-rejected path (verifies the
failed row is NOT recorded so the next run retries).
Test plan
---------
## Automated
- poetry run pytest -q → 70 passed
- poetry run mypy broker_sync tests → Success: no issues found in 29 source files
- poetry run ruff check . → All checks passed!
- poetry run broker-sync trading212 --help → shows all env vars + mode flag
## Manual Verification
Live smoke test blocked on:
1. Vault secret/broker-sync seeded (wf_base_url, wf_username, wf_password,
trading212_api_keys).
2. Terraform stack applied (infra/stacks/broker-sync/ — staged, not yet applied).
3. Image pushed to viktorbarzin/broker-sync on DockerHub via GHA.
Once those land:
kubectl -n broker-sync create job t212-backfill \
--from=cronjob/broker-sync-trading212 -- \
broker-sync trading212 --mode=backfill
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