Multileg unified implementation test

[CarlAndreasArnegard]

No description provided.

[Copilot]

Pull request overview

This PR implements a unified multileg flight aggregation system that replaces the previous merged flights approach with a chain-based model. The new implementation handles direct flights (2 stops), multi-leg flights (3+ stops), and circular routes uniformly by stitching individual arrival/departure records into complete flight chains.

Changes:

• Introduced UnifiedFlight and FlightStop models to represent flight chains with multiple stops
• Implemented fetchUnifiedFlights() method that groups flights by ID+date and stitches legs chronologically
• Added mapUnifiedFlightsToSiri() in SiriETMapper to convert unified flights to SIRI format
• Updated /siri endpoint to use the new unified flight aggregation system
• Added comprehensive test suite covering direct, multi-leg, circular, and edge-case scenarios
• Added Svalbard (LYR) airport handling (classified as international by Avinor but treated as domestic)

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/main/kotlin/model/UnifiedFlight.kt	New model classes for representing flight chains with multiple stops and status tracking per stop
src/main/kotlin/service/FlightAggregationService.kt	Implements flight chain stitching logic with gap detection, origin/destination inference, and time window filtering
src/main/kotlin/siri/SiriETMapper.kt	Adds unified flight to SIRI mapping with route hash computation, status handling, and fully-cancelled flight detection
src/main/kotlin/Endpoint.kt	Updates /siri endpoint to use new fetchUnifiedFlights() instead of fetchAllMergedFlightsAsList()
src/main/kotlin/constants.kt	Adds SVALBARD_AIRPORTS constant for special handling of Svalbard routes
src/main/kotlin/Main.kt	Updates scanBasePackages from "routes.api" to "routes" (cosmetic change with no functional impact)
src/test/kotlin/service/FlightAggregationServiceTest.kt	Comprehensive test suite covering direct flights, multi-leg flights, circular routes, gap detection, missing data inference, and Svalbard classification

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[NiriLorentzen]

Should have some more comments to explain the flow better, otherwise nice code.

[sonarqubecloud]

Quality Gate failed

Failed conditions
73.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[NiriLorentzen]

My comments seem to have been resolved, lgtm