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Maurice
a7d789fdd5
Finishes be-weather-airports-fold. The README has listed weather as the reference implementation since the migration started, while 513 lines of it sat in the legacy layer. The file is nest/weather/weather.impl.ts now, and WeatherService owns what it could not own before: the cache sweep. That sweep was a bare setInterval at module scope, so every process that so much as imported the file started a five-minute timer and nothing ever stopped it — there was nothing to call. It is startCacheCleanup/stopCacheCleanup now, driven by onModuleInit/onModuleDestroy, and the handle is unref-ed so a cache sweep can never hold the process open. The old test file says as much: its second line is "Prevent the module-level setInterval from running during tests", with a vi.useFakeTimers() to do it. That workaround is no longer what keeps the timer quiet. The cache itself stays module state, deliberately. The MCP weather tools call getWeather directly from outside the container, and a cache is only worth having if every caller sees the same one. Hoisting it into the class would mean handing the registrar the container instance to get exactly what a module singleton already provides — the same trade the place-photo cache resolved the other way, because there the scheduler needed the instance anyway. Coverage is the reason this PR carries eleven new tests rather than none. Code in services/ is ungated; the moment it lands in src/nest it counts against the 80% branch threshold, and weather.impl arrived at 75%. The gap was in paths worth having: a failing archive lookup with and without an upstream reason, a far-future date whose climate rows are all null, an expired entry being re- fetched, and the sweep evicting one on its own. Plus the lifecycle itself — start is idempotent, stop is idempotent, the handle is unref-ed. 79% now. services/ is down to 11 files, from 44.