rebrand: rename project from Dispensa Manager to EverShelf

- Update app name across all files (manifest, index.html, README, docs)
- Update contact email to evershelfproject@gmail.com
- Rename Docker service/container/volume to evershelf
- Rename localStorage keys: dispensa_* → evershelf_*
- Rename SQLite DB reference: dispensa.db → evershelf.db
- Update SSH remote to dadaloop82/EverShelf
- Update Apache conf file name to evershelf.conf
- Update CI workflow Docker image/container names
- Update cron job example path
- Add data/dispensa.db to .gitignore to prevent accidental commit

backup.sh

@@ -1,23 +1,23 @@
 #!/bin/bash
-# Daily backup of Dispensa database (local only)
+# Daily backup of EverShelf database (local only)
 # The database is NOT pushed to remote repositories.
 # Runs via cron: creates a local timestamped backup copy
 #
 # Example crontab entry:
-#   0 3 * * * /var/www/html/dispensa/backup.sh
+#   0 3 * * * /var/www/html/evershelf/backup.sh
 
 INSTALL_DIR="$(cd "$(dirname "$0")" && pwd)"
 BACKUP_DIR="${INSTALL_DIR}/data/backups"
 
 mkdir -p "$BACKUP_DIR"
 
-DB_FILE="${INSTALL_DIR}/data/dispensa.db"
+DB_FILE="${INSTALL_DIR}/data/evershelf.db"
 if [ ! -f "$DB_FILE" ]; then
     exit 0
 fi
 
 DATE=$(date '+%Y-%m-%d_%H%M')
-cp "$DB_FILE" "${BACKUP_DIR}/dispensa_${DATE}.db"
+cp "$DB_FILE" "${BACKUP_DIR}/evershelf_${DATE}.db"
 
 # Keep only the last 7 backups
-ls -t "${BACKUP_DIR}"/dispensa_*.db 2>/dev/null | tail -n +8 | xargs -r rm --
+ls -t "${BACKUP_DIR}"/evershelf_*.db 2>/dev/null | tail -n +8 | xargs -r rm --