✨ feat(mac-mini): add stability improvements

High priority stability features:
- Add all LaunchD plists to Git for version control
- Handle crash-looping containers (Restarting status) in ensure-containers.sh
- Add database backup script with daily/weekly rotation
- Add Docker log rotation setup (50MB max, 3 files per container)

New files:
- scripts/mac-mini/backup-databases.sh - Daily pg_dump with rotation
- scripts/mac-mini/setup-docker-logging.sh - Configure daemon.json
- scripts/mac-mini/launchd/*.plist - All 8 LaunchD service configs
- scripts/mac-mini/launchd/README.md - Documentation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/mac-mini/launchd/README.md

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+# LaunchD Services for Mac Mini
+
+These plist files configure automatic services on the Mac Mini server.
+
+## Installation
+
+```bash
+# Copy all plists to LaunchAgents
+cp *.plist ~/Library/LaunchAgents/
+
+# Load all services
+for f in *.plist; do launchctl load ~/Library/LaunchAgents/$f; done
+```
+
+## Services
+
+| Service | Description | Interval |
+|---------|-------------|----------|
+| `docker-startup` | Starts Docker containers on boot | At login |
+| `ensure-containers` | Detects and restarts stuck containers | Every 5 min |
+| `health-check` | Checks all services and sends alerts | Every 5 min |
+| `ssd-check` | Monitors SSD health | Periodic |
+| `mana-stt` | Speech-to-text service (Whisper) | At login |
+| `mana-tts` | Text-to-speech service (Kokoro) | At login |
+| `image-gen` | Image generation service | At login |
+| `telegram-ollama-bot` | Telegram bot with Ollama | At login |
+
+## Management Commands
+
+```bash
+# Check status
+launchctl list | grep manacore
+
+# View logs
+tail -f /tmp/manacore-*.log
+
+# Reload a service
+launchctl unload ~/Library/LaunchAgents/com.manacore.health-check.plist
+launchctl load ~/Library/LaunchAgents/com.manacore.health-check.plist
+
+# Stop a service
+launchctl unload ~/Library/LaunchAgents/com.manacore.<service>.plist
+```
+
+## Troubleshooting
+
+Exit codes in `launchctl list`:
+- `0` = Running successfully
+- `1` = Last run had errors (check logs)
+- `-` = Not running / waiting for next interval
+- `78` = Configuration error
+
+Check error logs:
+```bash
+cat /tmp/manacore-<service>.error.log
+```