Preliminary dockerization with scheduling (#406)

Porting working docker implementation (scheduling, etc.) into revised v2

Co-authored-by: Netsky <56271887+TheNetsky@users.noreply.github.com>

compose.yaml

@@ -6,25 +6,37 @@ services:
 
     # Volume mounts: Specify a location where you want to save the files on your local machine.
     volumes:
-      - ./src/accounts.json:/usr/src/microsoft-rewards-script/accounts.json:ro
-      - ./src/config.jsonc:/usr/src/microsoft-rewards-script/config.json:ro
-      - ./sessions:/usr/src/microsoft-rewards-script/sessions # Optional, saves your login session
+      - ./src/accounts.jsonc:/usr/src/microsoft-rewards-script/dist/accounts.json:ro
+      - ./src/config.jsonc:/usr/src/microsoft-rewards-script/dist/config.json:ro
+      - ./sessions:/usr/src/microsoft-rewards-script/dist/browser/sessions # Optional, saves your login session
 
     environment:
-      TZ: "America/Toronto" # Set your timezone for proper scheduling (used by image and scheduler)
+      TZ: "America/Toronto" # Set your timezone for proper scheduling
       NODE_ENV: "production"
-      # Force headless when running in Docker (uses Chromium Headless Shell only)
-      FORCE_HEADLESS: "1"
-      #SCHEDULER_DAILY_JITTER_MINUTES_MIN: "2"
-      #SCHEDULER_DAILY_JITTER_MINUTES_MAX: "10"
-      # Watchdog timeout per pass (minutes, default 180)
-      #SCHEDULER_PASS_TIMEOUT_MINUTES: "180"
-      # Run pass in child process (default true). Set to "false" to disable for debugging.
-      #SCHEDULER_FORK_PER_PASS: "true"
+      CRON_SCHEDULE: "0 7,16,20 * * *" # Customize your schedule, use crontab.guru for formatting
+      RUN_ON_START: "true" # Runs the script immediately on container startup
 
+      # Add scheduled start-time randomization (uncomment to customize or disable, default: enabled)
+      #MIN_SLEEP_MINUTES: "5"
+      #MAX_SLEEP_MINUTES: "50"
+      SKIP_RANDOM_SLEEP: "false"
+
+      # Optionally set how long to wait before killing a stuck script run (prevents blocking future runs, default: 8 hours)
+      #STUCK_PROCESS_TIMEOUT_HOURS: "8"
+
+    # Optional resource limits for the container
+    mem_limit: 4g
+    cpus: 2
+
+    # Health check - monitors if cron daemon is running to ensure scheduled jobs can execute
+    # Container marked unhealthy if cron process dies
+    #healthcheck:
+      test: ["CMD", "sh", "-c", "pgrep cron > /dev/null || exit 1"]
+      interval: 60s
+      timeout: 10s
+      retries: 3
+      start_period: 30s
+    
     # Security hardening
     security_opt:
       - no-new-privileges:true
-
-    # Use the built-in scheduler by default; override with `command:` for one-shot runs
-    command: ["npm", "run", "start"]