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77: Make NenjimHub the runtime owner and replace NenjimApplication with NenjimProcess

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minimons
2026-09-02 15:59:56 +02:00
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openspec/specs/assetaz-ticker-service/spec.md
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## Purpose
Provide AssetAZ callers with typed latest prices backed by explicitly enabled, durable observation histories.
## Requirements
### Requirement: Price sources are discovered and lifecycle-managed
Nenjim SHALL be able to construct and register each price source independently in an initialized but unstarted state without supplying a ticker or sink. The ticker SHALL receive the public Nenjim Registry through constructor injection and resolve its explicitly configured `PriceSource` component IDs, while ordinary ticker clients SHALL NOT receive a public operation for adding or managing sources. The ticker SHALL fail clearly when a configured ID is missing or names a component that does not implement `PriceSource`; it SHALL NOT silently select the first source listed for the interface. The ticker SHALL identify each resolved source by its `TradingPair` and stable source name, reject duplicate identities clearly, start each active source by passing itself as `PriceSink`, and stop every source it started. Source names SHALL be non-empty safe directory components and SHALL reject `/`, `\`, `..`, and control characters without rewriting them. A source SHALL announce typed prices and timestamps only through the sink received at start and SHALL remain unaware of its persistence path. A repeated source start SHALL reject the call before replacing its existing sink.
#### Scenario: Sources are constructed independently
- **WHEN** the Registry manager constructs and registers a price source before constructing or starting the ticker
- **WHEN** the NenjimHub constructs and registers a price source before constructing or starting the ticker
- **THEN** source construction requires neither a `PriceSink` nor a ticker reference and leaves the source unstarted
#### Scenario: Ticker resolves configured source components