refactor(build-runtime): resolve plugin runtime adapters

[kubohiroya]

Summary

• resolve canonical build runtime adapters exported from plugin worker modules
• wire location and route manager-backed runtime adapters into worker bootstrap
• make runtime delete cleanup plugin-managed build job data before removing session inventory

Validation

• pnpm exec biome check packages/build-runtime-services/src packages/build-api/src plugins/location-plugin/src/services plugins/route-plugin/src/services docs/build-session-spec.md --reporter summary
• pnpm -w turbo run typecheck --filter @hierarchidb/build-api --filter @hierarchidb/build-runtime-services --filter @hierarchidb/location-plugin --filter @hierarchidb/route-plugin --filter @hierarchidb/app
• pnpm vitest run src/tests/CanonicalBuildRuntimeAdapterRegistry.unit.test.ts
• pnpm vitest run src/services/tests/unit/LocationBatchManager.iso-normalization.unit.test.ts src/services/tests/unit/LocationBuildSession.canonical-events.unit.test.ts
• ROUTE_TESTS=1 pnpm vitest run src/common/tests/unit/RouteBatchManager.idempotency.unit.test.ts src/common/tests/unit/RouteBuildSession.canonical-events.unit.test.ts

Refs #1503