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Khalim Conn-Kowlessar fa49d7b946 §7 slice 1: mean_internal_temperature_monthly orchestrator with per-zone η 
Adds MeanInternalTemperatureResult + mean_internal_temperature_monthly,
implementing SAP10.2 §7 Table 9c steps 1-9 sequentially:
  - (86) η_living  = f(Ti = T_h1 = 21°C)
  - (89) η_elsewhere = f(Ti = T_h2 from Table 9)
  - (94) η_whole = f(Ti = (93)m adjusted MIT)

Three distinct η values per month, each computed from its own zone's Ti
via the existing utilisation_factor leaf. Closes the 6.6e-3 °C drift on
000490 (92)m Jan that the prior single-η implementation produced.

Driven by 000490 Jan worksheet (92)m = 15.1899 to abs=5e-3 °C. Other 11
months + per-zone line refs are exercised by the ALL_FIXTURES e2e test
in slice 3.

Legacy `mean_internal_temperature_c` retained (still used by calculator
_solve_month iteration); slice 4 deletes both when calculator wires the
new orchestrator's (93)m + (94)m fields.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 21:28:32 +00:00
..
domain §7 slice 1: mean_internal_temperature_monthly orchestrator with per-zone η 2026-05-20 21:28:32 +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/.