Add SQL query patterns documentation and Linux package build scripts

- Created `TV_SHOWS_SQL_QUERY_PATTERNS.md` to document SQL query patterns for TV shows, including performance issues and missing indexes.
- Added `README.md` for Linux package building, detailing steps for creating Debian and Red Hat packages.
- Implemented build scripts for Debian and Red Hat, including service files and post-installation hooks.
- Added necessary scripts for managing Jellyfin service lifecycle on both Debian and Red Hat systems.
- Included package specifications and installation instructions for both distributions.

scripts/redhat/jellyfin.service

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+[Unit]
+Description=Jellyfin Media Server
+After=network.target
+
+[Service]
+Type=simple
+User=jellyfin
+Group=jellyfin
+WorkingDirectory=/var/lib/jellyfin
+
+# Run jellyfin with proper configuration directories
+ExecStart=/opt/jellyfin/jellyfin \
+    --datadir=/var/lib/jellyfin \
+    --logdir=/var/log/jellyfin \
+    --cachedir=/var/cache/jellyfin
+
+# Restart behavior
+Restart=on-failure
+RestartSec=5s
+
+# Resource limits
+LimitNOFILE=65536
+MemoryMax=4G
+
+# Logging
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=jellyfin
+
+[Install]
+WantedBy=multi-user.target

scripts/redhat/post.sh

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+#!/bin/bash
+set -e
+
+# Jellyfin Post-Installation Script (Red Hat)
+# Runs after package is installed
+
+# Create jellyfin user/group if not exists
+if ! id "jellyfin" &>/dev/null; then
+    echo "Creating jellyfin user and group..."
+    useradd -r -s /bin/false -d /var/lib/jellyfin jellyfin
+fi
+
+# Create necessary directories
+mkdir -p /var/lib/jellyfin
+mkdir -p /var/log/jellyfin
+mkdir -p /var/cache/jellyfin
+mkdir -p /etc/jellyfin
+
+# Set ownership and permissions
+chown -R jellyfin:jellyfin /opt/jellyfin
+chown -R jellyfin:jellyfin /var/lib/jellyfin
+chown -R jellyfin:jellyfin /var/log/jellyfin
+chown -R jellyfin:jellyfin /var/cache/jellyfin
+
+chmod 755 /opt/jellyfin
+chmod 750 /var/lib/jellyfin
+chmod 750 /var/log/jellyfin
+chmod 750 /var/cache/jellyfin
+
+# Enable and start service if systemd is available
+if command -v systemctl &> /dev/null; then
+    systemctl daemon-reload || true
+    systemctl enable jellyfin.service || true
+    echo "To start Jellyfin, run: sudo systemctl start jellyfin"
+fi
+
+echo "Jellyfin post-install complete!"

scripts/redhat/postun.sh

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+#!/bin/bash
+
+# Jellyfin Post-Uninstall Script (Red Hat)
+# Runs after package is removed
+
+# Remove jellyfin user/group
+if id "jellyfin" &>/dev/null; then
+    echo "Removing jellyfin user and group..."
+    userdel jellyfin || true
+fi
+
+echo "Jellyfin has been removed."

scripts/redhat/preun.sh

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+#!/bin/bash
+set -e
+
+# Jellyfin Pre-Uninstall Script (Red Hat)
+# Runs before package is removed
+
+# Stop service
+if command -v systemctl &> /dev/null; then
+    echo "Stopping Jellyfin service..."
+    systemctl stop jellyfin.service || true
+    systemctl disable jellyfin.service || true
+fi