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Khalim Conn-Kowlessar 4997039f1a Slice 65: add shower_outlets + number_baths to cohort 000474 hand-built 
Closes 2 of 14 remaining diffs by populating Appendix J inputs the
Elmhurst mapper surfaces from Summary §16:
- `sap_heating.number_baths=1` (passed via make_sap_heating kwarg)
- `sap_heating.shower_outlets = ShowerOutlets(Non-electric)` (set
  post-construction because the helper doesn't expose the field;
  added the dataclass imports for SCM completeness)

Cascade-equivalent: number_baths=1 and one non-electric mixer outlet
without WWHRS are the implicit Appendix J defaults when nothing is
lodged. All 11 cohort 000474 cascade pins remain GREEN at 1e-4.

Diff count: 14 → 12. Pyright net-zero (0 errors).

Remaining 12 diffs split:
- 7 mapper-needs-to-surface (country_code, water_heating_fuel,
  boiler_flue_type, emitter_temperature, main_heating_number,
  has_draught_lobby, central_heating_pump_age int↔str)
- 3 party_wall_construction sentinel (None vs 0) across bps
- 1 sap_windows: LEN 7 vs 5 (collapse vs 1:1 structural decision)
- 1 dwelling_type / built_form casing nuance (resolved in Slice 64
  bulk-update; remaining 1 was for one bp's encoding)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-25 16:52:15 +00:00
..
domain Slice 65: add shower_outlets + number_baths to cohort 000474 hand-built 2026-05-25 16:52:15 +00:00
fetchers added potential file scaffolding: 2026-05-15 10:56:53 +00:00
repos added potential file scaffolding: 2026-05-15 10:56:53 +00:00
utils added potential file scaffolding: 2026-05-15 10:56:53 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

README.md

Shared packages

Workspace packages consumed by services/*. Each package is its own Python distribution with its own pyproject.toml; services import via the workspace dependency mechanism ({ workspace = true }).

Package Purpose
domain/ Shared domain types — Property, BaselinePerformance, Plan, Scenario, EpcPropertyData, etc. No persistence, no IO, no business logic.
repos/ Persistence layer — one repo per aggregate. Owns the SQL. Depends on domain.
fetchers/ External API clients (gov EPC, Ofgem, Google Solar, etc.). Depend on domain for response shapes.
utils/ Cross-cutting infra — logging, S3, CloudWatch URL builders, SQS task helpers.

Adding a new shared package

Only when a real second consumer materialises. Don't pre-shatter (repos-epc, repos-property, ...) — split when a deployment needs to drop a dep, not before.

See ../ara_backend_design.md §11 for the broader monorepo layout and ../CONTEXT.md for the domain glossary that names the types living in domain/.