fix(live-log): prevent freeze without GPS and prompt for day-start position

Harden geolocation with watchdog timeouts and permission checks so
desktop browsers without GPS no longer hang Live-Log. Show a hint to
log a position when none exists for the day.

Return 503 when crew-pool Prisma models are missing instead of crashing.

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

server/package.json

@@ -5,9 +5,11 @@
   "main": "dist/index.js",
   "type": "module",
   "scripts": {
-    "build": "tsc",
+    "build": "prisma generate && tsc",
+    "postinstall": "prisma generate",
     "start": "node dist/index.js",
-    "dev": "tsx watch src/index.ts",
+    "dev": "prisma generate && tsx watch src/index.ts",
+    "db:push": "prisma db push",
     "test": "vitest run",
     "test:watch": "vitest"
   },