compare panel, docs update, wind visualisation

docs/diagrams/seq-prediction.puml

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+@startuml seq-prediction
+title Запуск прогноза траектории
+autonumber
+
+actor "Пользователь" as user
+participant "ControlPanel /\nWorkspacesPanel" as ui
+participant "workspacesStore" as store
+participant "predictionsApi" as predapi
+participant "client.ts" as client
+participant "Backend\n(Django)" as be
+participant "parsePrediction\n(domain)" as parse
+participant "WorkspaceRenderer\n(карта)" as render
+
+user -> ui : «Выполнить прогнозирование»
+ui -> store : run(workspaceId)
+activate store
+
+store -> predapi : run(params, launchDateTime)
+activate predapi
+predapi -> predapi : buildLaunchDateTime(date, time)\n→ ISO 8601 (UTC, Z)
+predapi -> predapi : getLatestDataset()\n→ актуальный слот GFS
+predapi -> client : post('/predictions/', payload)
+client -> be : POST /api/predictions/\n{FlightParameters, launch_datetime, dataset}
+be --> client : { result: PredictionStage[] }
+client --> predapi : PredictionResponse
+predapi --> store : RawPrediction
+deactivate predapi
+
+store -> parse : parsePrediction(stages)
+parse --> store : Prediction\n{flight_path[lat,lng,alt], timestamps[], launch/burst/landing}
+store -> store : setResult(workspaceId, prediction)
+deactivate store
+
+store -> render : реактивное обновление
+render -> render : линия трека + маркеры\n(старт, разрыв, приземление)
+
+alt ошибка сервера/сети
+    store -> store : lastRunError = message
+    store --> ui : toast «Ошибка прогнозирования»
+end
+@enduml