MIP-0083 tasks

Ordered delivery of MIP-0083, one PR per row. §n are the MIP's. The schemas come first (§5.12); rows 1–8 are v0: two providers (IFS and GFS), stations, the scorer, a local lake, MLflow and the cycle, filed as marola-dev/marola-app#63–#70 (the superseded text's issues, rewritten; #71 closed). Rows 1, 2 and 3 then 4, 5 and 6 can run in parallel. Rows 9–21 are filed when v0 is done. Every code row is marola-app's experiment module unless it says otherwise.

#	slug	delivers	tests (must exist before the PR)	depends on
1	schemas	§5.12: every schema, with §5.14's run_init, available_at, fetched_at and content_sha with derives Schema, its JSON Schema and DuckLake DDL checked in; kyo-schema, kyo-schema-json and kyo-config added after a jar check; marola-app#72's verify renamed experiment, its Besom infra removed	SchemaSpec	–
2	registry-protocol	GroundTruth (from #72), sampling-points.json, providers.json with the two v0 rows, #72's nine candidates as v0's sampling points, protocol.json (90 d, 4 h, leads to 360 h, scorecard days, K = 16, min_n)	GroundTruthSpec, SamplingRegistrySpec, ProtocolSpec	1
3	score-monoid	§5.2 and §5.5: the ScoreCell monoid with the OWB metrics (bias, RMSE, fair CRPS, spread, debiased ensemble-mean RMSE, spread-skill, error correlation), Matcher, Scorer, §5.14's paired intersection, model and issued skill, and the day-block bootstrap	ScoreMonoidSpec, MatcherSpec, FairnessSpec (scoring cases)	1
4	open-meteo-route	§4.4: the open_meteo route, driven by providers.json; IFS and GFS wind and temperature with single-run backfill; Async.foreach, Meter.initRateLimiter and Retry (§5.13); §5.14's run pinning and content hash; first live fixtures	ForecastClientSpec, FairnessSpec (fetch cases)	2
5	station-observations	§4.5: MetarClient (aviationweather.gov, IEM archive), InmetClient, the Niño-3.4 reader	ObservationClientSpec	2
6	lake-samples	§5.6's tables behind SampleStore, on a local DuckLake directory (duckdb_jdbc), Scope-owned connection, Stream-paged reads; the B2 OodsStore implementation follows MIP-0075 task 5	LakeSamplesSpec	1
7	cycle-mlflow	cycle, rescore, export on RunLedger; the MLflow experiment of §5.6 on B2; just experiment-cycle and just experiment-rescore	CycleSpec, ExportSpec	3, 4, 5, 6
8	scheduled-workflow	§5.9 experiment.yml; v0 is done when 7 days of unattended cycles show in MLflow; it writes the local lake to the Actions cache until the B2 lake lands	actionlint; §7's live checks	7, the owner's B2 key
9	station-screen	the screen command moving a candidate to qualified or rejected under #723's frozen thresholds	ScreenSpec on a fixture year	2, 5, #723
10	scorecard-page	marola-site — marola-site#99 as an OWB-style scorecard (days 1/3/5/7/10/15, 12Z ranking, climatology floor) against §5.12's Scorecard schema	that issue's site_check.js case and screenshots	7
11	provider-rows	§4.4: providers.json rows for WeatherNext 2, AIFS, AIGFS, ICON, IFS ENS and GEFS, each with a recorded fixture; no Scala change	ProtocolSpec on the new rows	4
12	marine-observations	§4.10: PNBOIA buoys (BNDO download or GTS), SIMCOSTA if reachable; buoys as buoy sampling points	MarineObservationSpec	5
13	upper-air	§4.10: Florianópolis and Porto Alegre radiosondes, 850 hPa vector-wind RMSE at upper_air points	UpperAirSpec	5, 11
14	navy-warnings	§4.10: archive CHM METAREA V warnings every cycle, parse pt and en, verify force ≥ 7 against buoys and stations	NavyWarningSpec	6, 12
15	merge-precip	§4.10: MERGE daily precipitation (BDC STAC), the 2000–2025 SEEPS climatology, 24 h SEEPS	MergePrecipSpec	3, 6
16	marola-analog	§5.11: the analog library (IFS single runs from 2024-03-14 with the IEM METAR archive), the marola_analog route	AnalogSpec	3, 4, 7
17	wn3-outreach	a person — the WeatherNext 3 Data Request Form as UFRJ and UFSC (§4.3), the answer recorded in the MIP	–	–
18	bndo-request	a person — the BNDO request form for PNBOIA history and terms (§4.10), recorded in the MIP	–	–
19	weathernext3-route	§4.3: the weathernext3_bigquery route	its client spec on a recorded fixture	4, 17
20	monan-route	§4.10: the monan route once INPE publishes output	its client spec on a recorded fixture	4, INPE
21	grid-scores	marola-ml, only if the owner decides to — WeatherBench-X on a South crop against each model's analysis (§4.10's "cannot" made possible)	its own MIP	8
22	mip-implemented	marola — MIP-0083 flipped to Implemented with every PR	mip_graph.py --check	1–16