fix: anomalie fenêtres 3j+7j (worst-case) + carte plus large PC

- normales.ts : computeAnomaly évalue 2 fenêtres (3j pour détecter un pic
  récent, 7j pour la tendance lissée), retient la pire catégorie. Évite
  de noyer un +15°C sur 3 jours dans 4 jours précédents normaux.
- FranceMap : max-w-3xl → max-w-5xl (1024px sur PC, plus lisible).

Mapping dept → station SYNOP (script build-stations-synop.mjs + json statique)
pour préparer l'intégration hourly via API Météo France officielle.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/data/stations-synop.json

@@ -0,0 +1 @@
+{"10":{"stationId":"07168","distKm":4.8},"11":{"stationId":"07635","distKm":11.9},"12":{"stationId":"07552","distKm":19.5},"13":{"stationId":"07648","distKm":10.1},"14":{"stationId":"07027","distKm":13.4},"15":{"stationId":"07549","distKm":27.2},"16":{"stationId":"07412","distKm":40.8},"17":{"stationId":"07412","distKm":35.9},"18":{"stationId":"07255","distKm":2.8},"19":{"stationId":"07438","distKm":39.8},"21":{"stationId":"07280","distKm":31.8},"22":{"stationId":"07120","distKm":10.5},"23":{"stationId":"07361","distKm":12},"24":{"stationId":"07530","distKm":37.9},"25":{"stationId":"07288","distKm":30.2},"26":{"stationId":"07577","distKm":40.4},"27":{"stationId":"07038","distKm":19.8},"28":{"stationId":"07143","distKm":12.3},"29":{"stationId":"07109","distKm":21.4},"30":{"stationId":"07645","distKm":32.5},"31":{"stationId":"07630","distKm":35.4},"32":{"stationId":"07622","distKm":12.6},"33":{"stationId":"07510","distKm":17},"34":{"stationId":"07638","distKm":31.1},"35":{"stationId":"07130","distKm":12.6},"36":{"stationId":"07354","distKm":15.2},"37":{"stationId":"07240","distKm":20.8},"38":{"stationId":"07486","distKm":21.6},"39":{"stationId":"07386","distKm":34.4},"40":{"stationId":"07607","distKm":7.7},"41":{"stationId":"07245","distKm":16.5},"42":{"stationId":"07475","distKm":24.3},"43":{"stationId":"07471","distKm":8.3},"44":{"stationId":"07222","distKm":20.2},"45":{"stationId":"07249","distKm":45.2},"46":{"stationId":"07535","distKm":21.8},"47":{"stationId":"07524","distKm":25.4},"48":{"stationId":"07554","distKm":3.4},"49":{"stationId":"07230","distKm":7.7},"50":{"stationId":"07027","distKm":64.7},"51":{"stationId":"07166","distKm":18.2},"52":{"stationId":"07283","distKm":32.9},"53":{"stationId":"07134","distKm":15.1},"54":{"stationId":"07093","distKm":14.2},"55":{"stationId":"07169","distKm":57.1},"56":{"stationId":"07205","distKm":42.5},"57":{"stationId":"07093","distKm":38.2},"58":{"stationId":"07260","distKm":36.6},"59":{"stationId":"07015","distKm":13.8},"60":{"stationId":"07055","distKm":22.5},"61":{"stationId":"07139","distKm":18.2},"62":{"stationId":"07015","distKm":50.2},"63":{"stationId":"07460","distKm":5.7},"64":{"stationId":"07610","distKm":33.3},"65":{"stationId":"07621","distKm":13.5},"66":{"stationId":"07747","distKm":37.4},"67":{"stationId":"07190","distKm":22.3},"68":{"stationId":"07197","distKm":14.2},"69":{"stationId":"07480","distKm":27.6},"70":{"stationId":"07292","distKm":27.9},"71":{"stationId":"07385","distKm":43.3},"72":{"stationId":"07235","distKm":4.3},"73":{"stationId":"07497","distKm":32.5},"74":{"stationId":"07490","distKm":29.9},"75":{"stationId":"07156","distKm":3.6},"76":{"stationId":"07037","distKm":24.4},"77":{"stationId":"07153","distKm":19.6},"78":{"stationId":"07145","distKm":12.3},"79":{"stationId":"07330","distKm":25.8},"80":{"stationId":"07059","distKm":28.9},"81":{"stationId":"07632","distKm":12.9},"82":{"stationId":"07540","distKm":9.7},"83":{"stationId":"07675","distKm":11.5},"84":{"stationId":"07586","distKm":6.6},"85":{"stationId":"07306","distKm":1.9},"86":{"stationId":"07335","distKm":7.6},"87":{"stationId":"07434","distKm":4.2},"88":{"stationId":"07181","distKm":45.8},"89":{"stationId":"07266","distKm":4.8},"90":{"stationId":"07296","distKm":7.5},"91":{"stationId":"07149","distKm":24.2},"92":{"stationId":"07156","distKm":6.5},"93":{"stationId":"07150","distKm":4.9},"94":{"stationId":"07149","distKm":7.2},"95":{"stationId":"07053","distKm":5.6},"01":{"stationId":"07482","distKm":15.7},"02":{"stationId":"07061","distKm":45.1},"03":{"stationId":"07374","distKm":28.3},"04":{"stationId":"07588","distKm":23.3},"05":{"stationId":"07591","distKm":25.9},"06":{"stationId":"07690","distKm":32},"07":{"stationId":"07570","distKm":26.8},"08":{"stationId":"07075","distKm":15.2},"09":{"stationId":"07627","distKm":33.4},"2A":{"stationId":"07761","distKm":12.1},"2B":{"stationId":"07753","distKm":31.9}}