docs: document with the results of the code (code only) analysis

Author: pbastia

docs/2024_code_review.md

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+## Registration
+
+- Date of first shipment for operations \*\*\*
+  - models/operation.py
+    - DateOfFirstShipmentChoices specific to 2024
+  - schema/operation.py
+    - Field for date of first shipment
+  - api/.../test_new_entrant_application.py
+  - test_changing_registration_purpose.py
+  - test_operation_registration.py
+
+## Reporting
+
+- ReportProduction model has an "apr_dec_production" field
+- ReportComplianceSummaryProduct has an "apr_dec_production" field
+- activities' schemas
+  All the activities' schemas are 2024 specific.
+  -> Copy/Paste for 2025?
+  -> Make rules to know which ones changed?
+
+  - reporting/json\*schemas/2024/\*\*/\_.json
+  - tests for the configuration json is also specific to 2024 (See `reporting/tests/models/program_configuration_tests`)
+
+- Compliance Summary
+
+  - ReportConplianceSummary.initial_compliance_period defaults to 2024
+  - Compliance service
+
+    - Naics regulatory values hardcoded to fetch with an initial compliance period 2024 (probably not an issue?)
+    - allocated_for_compliance_2024 is calculated no matter what (along with the general compliance value)
+    - "emissions attributable for compliance" and each products "allocated compliance emissions" use the 2024-specific value
+    - excess/credited emissions also use the 2024-specific allocation
+    - tests for compliance service (test_compliance_service_static.py) also only test 2024 scenarios
+
+## Service
+
+- test_service_utils.py could use any date and not 2024
+- test_operation_service.py checks the date of first shipment according to the 2024 rules
+
+## Frontend
+
+- administrationRegistrationInformation.ts encodes the date of first shipment as 2024 in the options
+- newEntrantOperation.ts encodes the date of first shipment as 2024 in the options
+- finalReviewFields.ts includes apr-dec production for 2024
+- a few references to the "apr_dec" fields in
+
+  - ComplianceSummaryForm.tsx
+  - finalReviewFields.ts
+  - finalReview/reportTypes.ts
+  - jsonSchema/complianceSummary.ts
+
+- lots of compliance tests use 2024 as a base when they don't really have to