feat: Gezeiten im Logbuch per Open-Meteo Marine

HW/NW-Felder im Reisetag und Live-Journal mit Server-Proxy auf Basis von
Open-Meteo Marine am GPS-Standort; neueste Position und frischer DB-Stand
vor dem Abruf, Bestätigung nach Übernehmen, Accordion-Layout bereinigt.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/src/app.ts

@@ -10,6 +10,7 @@ import collaborationRouter from './routes/collaboration.js'
 import signRouter from './routes/sign.js'
 import pushRouter from './routes/push.js'
 import weatherRouter from './routes/weather.js'
+import tidesRouter from './routes/tides.js'
 import aiRouter from './routes/ai.js'
 import feedbackRouter from './routes/feedback.js'
 import adminRouter from './routes/admin.js'
@@ -120,6 +121,7 @@ export function createApp(): express.Express {
   app.use('/api/sign', signRouter)
   app.use('/api/push', pushRouter)
   app.use('/api/weather', weatherRouter)
+  app.use('/api/tides', tidesRouter)
   app.use('/api/ai', aiRouter)
   app.use('/api/feedback', feedbackRouter)
   app.use('/api/admin', adminRouter)