feat: T4b/T4c wave 8 - weather history, phenology, honey chain, Telegram base

- Weather history from Open-Meteo behind an adapter: worker loop
  phenology-weather with backoff, Retry-After, User-Agent, chunked
  writes and forecast-to-archive correction
- Phenology: growing degree sum per DWD, phase from reports, GTS and
  calendar, calibration from previous years, daily job step,
  SeasonService reads the stored state
- Honey chain: prefill for extractions and batches (proposals only),
  plausibility and withdrawal warnings, Extraction lock, chain events
  and batch.created webhook from HoneyBatchRecorded
- Telegram base: schema, NotificationDelivery outbox, hardened bot
  client, startup check without crash, no-network-outside-loops guard
- ARCHITECTURE.md: sections 11.11-11.13, assumptions 42-46, env table

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Backend/test/extractions.e2e-spec.ts

@@ -9,6 +9,7 @@ import { login } from './utils/api';
 interface ExtractionBody {
   id: string;
   harvests: { harvestId: string }[];
+  warnings: { code: string }[];
 }
 
 describe('Extractions (e2e)', () => {
@@ -113,6 +114,10 @@ describe('Extractions (e2e)', () => {
     const extraction = response.body as ExtractionBody;
     extractionId = extraction.id;
     expect(extraction.harvests).toHaveLength(1);
+    // The harvest has no net weight: a hint, not an error.
+    expect(extraction.warnings.map((warning) => warning.code)).toEqual([
+      'HARVEST_NET_MISSING',
+    ]);
   });
 
   it('returns the extraction with its source harvests on lookup', async () => {