✨ 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/com.manacore.backup-databases.plist

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>Label</key>
+    <string>com.manacore.backup-databases</string>
+
+    <key>ProgramArguments</key>
+    <array>
+        <string>/bin/bash</string>
+        <string>/Users/mana/projects/manacore-monorepo/scripts/mac-mini/backup-databases.sh</string>
+    </array>
+
+    <!-- Run daily at 3:00 AM -->
+    <key>StartCalendarInterval</key>
+    <dict>
+        <key>Hour</key>
+        <integer>3</integer>
+        <key>Minute</key>
+        <integer>0</integer>
+    </dict>
+
+    <key>StandardOutPath</key>
+    <string>/tmp/manacore-backup.log</string>
+
+    <key>StandardErrorPath</key>
+    <string>/tmp/manacore-backup.error.log</string>
+
+    <key>EnvironmentVariables</key>
+    <dict>
+        <key>PATH</key>
+        <string>/usr/local/bin:/opt/homebrew/bin:/usr/bin:/bin</string>
+    </dict>
+</dict>
+</plist>