docs: update scheduling instructions in Docker and setup documentation

docs/docker.md

@@ -190,102 +190,6 @@ tail -100 /var/log/cron.log
 
 ---
 
-**[← Back to Hub](index.md)** | **[Getting Started](getting-started.md)**# 🐳 Docker Guide
-
-**Run the script in a container**
-
----
-
-## ⚡ Quick Start
-
-### 1. Create Required Files
-
-Ensure you have:
-- `src/accounts.jsonc` with your credentials
-- `src/config.jsonc` (uses defaults if missing)
-
-### 2. Start Container
-
-## 🎛️ Scheduling Options
-
-### Use a host scheduler (recommended)
-
-- Trigger `docker compose up --build` on your preferred schedule (cron, systemd timers, Task Scheduler, Kubernetes CronJob, etc.).
-- Ensure volumes remain consistent so each run reuses accounts, config, and sessions.
-- See [External Scheduling](schedule.md) for concrete host examples.
-
-### Enable in-container cron (optional)
-
-1. Set environment variables in `docker-compose.yml` or `docker run`:
-    build: .
-    environment:
-      TZ: "Europe/Paris"
-    command: ["npm", "run", "start:schedule"]
-```
-
-Configure schedule in `src/config.jsonc`:
-```jsonc
-{
-  "schedule": {
-    "enabled": true,
-    "useAmPm": false,
-    "time24": "09:00",
-    "timeZone": "Europe/Paris"
-  }
-}
-```
-
-### Option 2: Native Cron (For Traditional Cron Users)
-
-**Pros:**
-- ✅ Familiar cron syntax
-- ✅ Multiple daily runs with standard crontab
-- ✅ Native Linux scheduling
-
-**Setup:**
-
-1. **Enable cron in `docker-compose.yml`:**
-```yaml
-services:
-  rewards:
-    build: .
-    environment:
-      TZ: "Europe/Paris"
-      USE_CRON: "true"
-      CRON_SCHEDULE: "0 9,16,21 * * *"  # 9 AM, 4 PM, 9 PM daily
-      RUN_ON_START: "true"                # Optional: run once on start
-```
-
-2. **Cron Schedule Examples:**
-
-| Schedule | Description | Cron Expression |
-|----------|-------------|-----------------|
-| Daily at 9 AM | Once per day | `0 9 * * *` |
-| Twice daily | 9 AM and 9 PM | `0 9,21 * * *` |
-| Three times | 9 AM, 4 PM, 9 PM | `0 9,16,21 * * *` |
-| Every 6 hours | 4 times daily | `0 */6 * * *` |
-| Weekdays only | Mon-Fri at 8 AM | `0 8 * * 1-5` |
-
-**Use [crontab.guru](https://crontab.guru) to validate your cron expressions.**
-
-3. **Rebuild and restart:**
-```bash
-docker compose down
-docker compose build --no-cache
-docker compose up -d
-```
-
-4. **Verify cron is running:**
-```bash
-# Check container logs
-docker logs -f microsoft-rewards-bot
-
-# Should see: "==> Cron mode enabled"
-
-# View cron logs inside container
-docker exec microsoft-rewards-bot tail -f /var/log/cron.log
-```
-
 ### Option 3: Single Run (Manual)
 
 ```yaml