Add course schedules for ISF and ITZS programs for 2026 and 2024 sessions

- Created new snapshot files for ISF credits and daily schedules for the 26-АРХ and 26-ПГС programs.
- Added summer 2026 and winter 2024 exam schedules for the 23-ИТзс program, detailing lectures, labs, and consultations.

package.json

@@ -9,6 +9,7 @@
     "start": "node server/index.js",
     "test": "node --test test/*.test.js",
     "sync": "node scripts/sync.js",
+    "snapshot": "node scripts/snapshot.js",
     "icons": "node scripts/icons.js"
   },
   "dependencies": {