feat(strategy): implement DefineStrategyVersion slice

[liveforpresent]

Summary

• Feature-centric Gradle multi-module 구조와 공통 build convention을 구성했습니다.
• Strategy 생성·단건 조회 vertical slice를 Web → Inbound Port → Application →
  Persistence/Snowflake Adapter 흐름으로 구현했습니다.
• BacktestRun을 PENDING 상태로 생성하는 최소 RunBacktest slice와 Compute outbound port를
  추가했습니다.
• context 소유 문서/OpenAPI 스냅샷을 동기화하고 core-api 전용 agent 규칙을 정리했습니다.

Implemented Use Cases

• CreateStrategy: Snowflake 기반 Strategy ID 생성, 테스트용 MemberId 공급, PostgreSQL 저장.
• GetStrategy: StrategyReader를 통한 단건 조회와 Web 응답 매핑.
• RunBacktest: StrategyVersionId로 BacktestRun(PENDING) 생성. Compute 호출/폴링 구현은
  이번 범위에서 제외하고 outbound port만 정의.

Related ADR

• ADR-002 — Primary Signal Asset은 명시적으로 지정.
• ADR-013 — Strategy와 생성 후 불변인 StrategyVersion.
• ADR-018 — Feature-centric Gradle 모듈, inbound/outbound port, technology-specific adapter.

Core ↔ Compute API Contract

• Compute client 구현이나 요청/응답 동작은 변경하지 않았습니다.
• 포함된 OpenAPI 파일은 context 저장소의 동기화 스냅샷입니다. 별도 Compute API 계약 변경 PR은
  없습니다.

[Copilot]

Pull request overview

Implements the “DefineStrategyVersion” vertical slice for the strategy feature (Web → Inbound Port → Application → Persistence/Snowflake adapters) and extends strategy retrieval to return version details.

Changes:

• Add DefineStrategyVersion inbound port + application service + web endpoint (POST /strategies/{id}/versions) and response/request DTOs.
• Persist and read StrategyVersion (and its conditions) via new JPA entities + updated store/reader adapters; introduce StrategyVersionIdGenerator with Snowflake implementation.
• Expand “GetStrategy” read/result/HTTP response to include versions and latestVersionId; add unit + HTTP integration tests.

Reviewed changes

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Show a summary per file

File	Description
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/outbound/StrategyStore.kt	Extend outbound store contract to support findById for command-side aggregate load.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/outbound/StrategyReader.kt	Expand read model to include versions and version details.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/outbound/StrategyIdGenerator.kt	Add StrategyVersionIdGenerator outbound port.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/inbound/strategy/get/GetStrategyResult.kt	Extend inbound result DTOs to include version details.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/inbound/strategy/define/DefineStrategyVersionUseCase.kt	New inbound use case interface for defining versions.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/inbound/strategy/define/DefineStrategyVersionResult.kt	New inbound result for version definition.
strategy/port/src/main/kotlin/com/refinvest/core/strategy/port/inbound/strategy/define/DefineStrategyVersionCommand.kt	New inbound command for version definition.
strategy/application/src/test/kotlin/com/refinvest/core/strategy/application/strategy/get/GetStrategyServiceTest.kt	Update unit test for expanded read model shape.
strategy/application/src/test/kotlin/com/refinvest/core/strategy/application/strategy/define/DefineStrategyVersionServiceTest.kt	New unit tests for DefineStrategyVersion application service.
strategy/application/src/test/kotlin/com/refinvest/core/strategy/application/strategy/create/CreateStrategyServiceTest.kt	Update unit test to match new StrategyStore interface.
strategy/application/src/main/kotlin/com/refinvest/core/strategy/application/strategy/get/GetStrategyService.kt	Map versions from read model into inbound result DTOs.
strategy/application/src/main/kotlin/com/refinvest/core/strategy/application/strategy/define/DefineStrategyVersionService.kt	New transactional application service implementing DefineStrategyVersion.
strategy/application/build.gradle.kts	Add Spring TX dependency for @Transactional.
strategy/adapter/web/src/main/kotlin/com/refinvest/core/strategy/adapter/web/strategy/StrategyController.kt	Add HTTP endpoint for defining versions; include versions in GetStrategy response.
strategy/adapter/web/src/main/kotlin/com/refinvest/core/strategy/adapter/web/strategy/get/GetStrategyResponse.kt	Define typed versions response model and mapping helper.
strategy/adapter/web/src/main/kotlin/com/refinvest/core/strategy/adapter/web/strategy/define/DefineStrategyVersionResponse.kt	New response DTOs for DefineStrategyVersion (including condition/exit representations).
strategy/adapter/web/src/main/kotlin/com/refinvest/core/strategy/adapter/web/strategy/define/DefineStrategyVersionRequest.kt	New request DTOs and request→domain mapping logic.
strategy/adapter/snowflake/src/main/kotlin/com/refinvest/core/strategy/adapter/out/id/SnowflakeStrategyVersionIdGenerator.kt	Snowflake-backed generator for StrategyVersionId.
strategy/adapter/persistence/src/main/kotlin/com/refinvest/core/strategy/adapter/out/persistence/StrategyVersionJpaEntity.kt	New JPA entity for strategy versions and version conditions relation.
strategy/adapter/persistence/src/main/kotlin/com/refinvest/core/strategy/adapter/out/persistence/StrategyJpaEntity.kt	Add versions collection to strategy JPA entity.
strategy/adapter/persistence/src/main/kotlin/com/refinvest/core/strategy/adapter/out/persistence/JpaStrategyStoreAdapter.kt	Update store adapter to load/save versions + conditions.
strategy/adapter/persistence/src/main/kotlin/com/refinvest/core/strategy/adapter/out/persistence/JpaStrategyReaderAdapter.kt	Update reader adapter to return versions and compute latest version id.
strategy/adapter/persistence/src/main/kotlin/com/refinvest/core/strategy/adapter/out/persistence/ConditionJpaEntity.kt	New JPA entity for version conditions.
gradle/libs.versions.toml	Add spring-tx library coordinate.
app/src/test/kotlin/com/refinvest/RefinvestApplicationTests.kt	Add HTTP-level tests for defining and retrieving versions + validation failure case.

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