290 lines
8.7 KiB
Markdown
290 lines
8.7 KiB
Markdown
# Story 10.5: Migration et Dépréciation des Anciens Types
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**Epic:** 10 - Enhanced Boundary Conditions
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**Priorité:** P1-HIGH
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**Estimation:** 2h
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**Statut:** done
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**Dépendances:** Stories 10-2, 10-3, 10-4
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---
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## Story
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> En tant que développeur de la librairie Entropyk,
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> Je veux déprécier les anciens types `RefrigerantSource` et `RefrigerantSink` avec un guide de migration,
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> Afin de garantir une transition en douceur pour les utilisateurs existants.
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---
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## Contexte
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Les types `RefrigerantSource` et `RefrigerantSink` existants doivent être progressivement remplacés par les nouveaux types typés:
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| Ancien Type | Nouveau Type |
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|-------------|--------------|
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| `BrineSource::water("Water", ...)` | `BrineSource::water(...)` |
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| `BrineSource::water("MEG", ...)` | `BrineSource::glycol_mixture("MEG", ...)` |
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| `RefrigerantSource::new("R410A", ...)` | `RefrigerantSource::new("R410A", ...)` |
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| `BrineSink::water(...)` | `BrineSink::water(...)` ou `BrineSink::glycol_mixture(...)` |
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| `RefrigerantSink::new(...)` | `RefrigerantSink::new(...)` |
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---
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## Spécifications Techniques
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### 1. Ajouter Attributs de Dépréciation
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```rust
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// crates/components/src/refrigerant_boundary.rs
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#[deprecated(
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since = "0.2.0",
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note = "Use RefrigerantSource or BrineSource instead. \
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See migration guide in docs/migration/boundary-conditions.md"
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)]
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pub struct RefrigerantSource { /* ... */ }
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#[deprecated(
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since = "0.2.0",
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note = "Use RefrigerantSink or BrineSink instead. \
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See migration guide in docs/migration/boundary-conditions.md"
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)]
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pub struct RefrigerantSink { /* ... */ }
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```
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### 2. Mapper les Anciens Constructeurs
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```rust
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impl RefrigerantSource {
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#[deprecated(
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since = "0.2.0",
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note = "Use BrineSource::water() for water or BrineSource::glycol_mixture() for glycol"
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)]
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pub fn incompressible(
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fluid: impl Into<String>,
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p_set_pa: f64,
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h_set_jkg: f64,
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outlet: ConnectedPort,
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) -> Result<Self, ComponentError> {
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// Log de warning
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log::warn!(
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"BrineSource::water is deprecated. \
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Use BrineSource::water() or BrineSource::glycol_mixture() instead."
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);
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// Créer le type approprié en interne
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let fluid = fluid.into();
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if fluid == "Water" {
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// Déléguer vers BrineSource::water()
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} else {
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// Déléguer vers BrineSource::glycol_mixture()
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}
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}
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#[deprecated(
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since = "0.2.0",
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note = "Use RefrigerantSource::new() instead"
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)]
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pub fn compressible(
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fluid: impl Into<String>,
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p_set_pa: f64,
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h_set_jkg: f64,
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outlet: ConnectedPort,
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) -> Result<Self, ComponentError> {
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log::warn!(
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"RefrigerantSource::new is deprecated. \
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Use RefrigerantSource::new() instead."
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);
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// ...
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}
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}
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```
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### 3. Créer le Guide de Migration
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```markdown
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# docs/migration/boundary-conditions.md
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# Migration Guide: Boundary Conditions
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## Overview
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The `RefrigerantSource` and `RefrigerantSink` types have been replaced with typed alternatives:
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- `RefrigerantSource` / `RefrigerantSink` - for refrigerants
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- `BrineSource` / `BrineSink` - for liquid heat transfer fluids
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- `AirSource` / `AirSink` - for humid air
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## Migration Examples
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### Water Source (Before)
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\`\`\`rust
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let source = BrineSource::water("Water", 3.0e5, 63_000.0, port)?;
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\`\`\`
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### Water Source (After)
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\`\`\`rust
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let source = BrineSource::water(
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Temperature::from_celsius(15.0),
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Pressure::from_pascals(3.0e5),
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port
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)?;
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\`\`\`
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### Refrigerant Source (Before)
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\`\`\`rust
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let source = RefrigerantSource::new("R410A", 10.0e5, 280_000.0, port)?;
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\`\`\`
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### Refrigerant Source (After)
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\`\`\`rust
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let source = RefrigerantSource::new(
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"R410A",
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Pressure::from_pascals(10.0e5),
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Enthalpy::from_joules_per_kg(280_000.0),
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port
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)?;
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\`\`\`
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## Benefits of New Types
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1. **Type Safety**: Fluid type is explicit in the type name
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2. **Concentration Support**: BrineSource supports glycol concentration
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3. **Vapor Quality**: RefrigerantSource supports vapor quality input
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4. **Psychrometrics**: AirSource supports humidity and wet bulb temperature
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\`\`\`
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```
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---
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## Fichiers à Modifier
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| Fichier | Action |
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|---------|--------|
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| `crates/components/src/refrigerant_boundary.rs` | Ajouter attributs `#[deprecated]` |
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| `docs/migration/boundary-conditions.md` | Créer guide de migration |
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| `CHANGELOG.md` | Documenter les changements breaking |
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---
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## Critères d'Acceptation
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- [x] `RefrigerantSource` marqué `#[deprecated]` avec message explicite
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- [x] `RefrigerantSink` marqué `#[deprecated]` avec message explicite
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- [x] Type aliases `BrineSource`, etc. également dépréciés
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- [x] Guide de migration créé avec exemples
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- [x] CHANGELOG mis à jour
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- [x] Tests existants passent toujours (rétrocompatibilité)
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---
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## Tests Requis
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```rust
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#[cfg(test)]
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mod tests {
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#[test]
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fn test_deprecated_flow_source_still_works() {
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// Vérifier que les anciens types fonctionnent encore
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// (avec warning de dépréciation)
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}
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#[test]
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fn test_migration_water_source() {
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// Vérifier que le nouveau type donne les mêmes résultats
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}
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#[test]
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fn test_migration_refrigerant_source() {
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// Vérifier que le nouveau type donne les mêmes résultats
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}
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}
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```
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---
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## Timeline de Suppression
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| Version | Action |
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|---------|--------|
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| 0.2.0 | Dépréciation avec warnings |
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| 0.3.0 | Les anciens types sont cachés par défaut (feature flag) |
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| 1.0.0 | Suppression complète des anciens types |
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---
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## Références
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- [Architecture Document](../../plans/boundary-condition-refactoring-architecture.md)
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- [Epic 10](../planning-artifacts/epic-10-enhanced-boundary-conditions.md)
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---
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## Dev Agent Record
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### Implementation Plan
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1. Added `#[deprecated]` attributes to `RefrigerantSource` and `RefrigerantSink` structs with clear migration messages
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2. Added `#[deprecated]` attributes to all constructors (`incompressible`, `compressible`)
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3. Added `#[deprecated]` attributes to type aliases (`BrineSource`, `RefrigerantSource`, `BrineSink`, `RefrigerantSink`)
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4. Created comprehensive migration guide at `docs/migration/boundary-conditions.md`
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5. Created `CHANGELOG.md` with deprecation notices
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6. Added backward compatibility tests to ensure deprecated types still work
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### Completion Notes
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- All 30 tests in `refrigerant_boundary` module pass, including 5 new backward compatibility tests
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- Deprecation warnings are properly shown when using old types
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- Migration guide provides clear examples for transitioning to new typed boundary conditions
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- The deprecated types remain fully functional for backward compatibility
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---
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## File List
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| File | Action |
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|------|--------|
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| `crates/components/src/refrigerant_boundary.rs` | Modified - Added deprecation attributes, updated module docs |
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| `docs/migration/boundary-conditions.md` | Created - Migration guide with correct API signatures |
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| `CHANGELOG.md` | Created - Changelog with deprecation notices |
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**Note:** Epic 10 also modified other files (brine_boundary.rs, refrigerant_boundary.rs, air_boundary.rs, etc.) but those are tracked in sibling stories 10-2, 10-3, 10-4.
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---
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## Change Log
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| Date | Change |
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|------|--------|
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| 2026-02-24 | Completed implementation of deprecation attributes and migration guide |
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| 2026-02-24 | **Code Review:** Fixed migration guide API signatures, added AirSink example, updated module docs |
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---
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## Senior Developer Review (AI)
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**Reviewer:** AI Code Review
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**Date:** 2026-02-24
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**Outcome:** ✅ Approved with fixes applied
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### Issues Found and Fixed
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| Severity | Issue | Resolution |
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|----------|-------|------------|
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| HIGH | Migration guide used incorrect `BrineSource::water()` API | Fixed: Updated to use `BrineSource::new()` with correct signature including `backend` parameter |
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| HIGH | Missing `log::warn!` calls in deprecated constructors | Deferred: `#[deprecated]` attribute provides compile-time warnings; runtime logging would require adding `log` dependency |
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| HIGH | Constructors don't delegate to new types | Deferred: API incompatibility (new types require `Arc<dyn FluidBackend>` which old API doesn't have) |
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| MEDIUM | Module-level example still used deprecated API | Fixed: Replaced with deprecation notice and link to migration guide |
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| MEDIUM | Missing AirSink migration example | Fixed: Added complete AirSink example |
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| LOW | CHANGELOG date placeholders | Fixed: Updated to actual dates |
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### Review Notes
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- All 30 tests in `refrigerant_boundary` module pass
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- Deprecation attributes correctly applied to structs, constructors, and type aliases
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- Migration guide now provides accurate API signatures for all new types
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- Backward compatibility maintained via `#[allow(deprecated)]` in test module
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