Add multi-version Bible support with ESV and NKJV translations

- Rename project from 'ESV Bible' to 'The Bible'
- Implement version selection dropdown in homepage header
- Add support for multiple Bible versions:
  * ESV (English Standard Version) - from mdbible
  * NKJV (New King James Version) - from local NKJV/ directory
- Update all API endpoints to accept version parameter (?version=esv|?version=nkjv)
- Add version-aware favorites system that stores and displays Bible version (e.g., 'Genesis 1:1 (ESV)')
- Update database schema to include version column in favorites table
- Maintain backward compatibility with existing data
- Update Docker configuration and documentation

backend/src/database.js

@@ -50,7 +50,22 @@ function initializeTables() {
     )
   `);
 
-  // Favorites table
+  // Check if favorites table exists and needs migration
+  db.all("PRAGMA table_info(favorites)", [], (err, columns) => {
+    if (!err && columns.length > 0) {
+      const hasVersionColumn = columns.some(col => col.name === 'version');
+      if (!hasVersionColumn) {
+        // Add version column to existing table
+        db.run("ALTER TABLE favorites ADD COLUMN version TEXT DEFAULT 'esv'", (err) => {
+          if (!err) {
+            console.log('Added version column to favorites table');
+          }
+        });
+      }
+    }
+  });
+
+  // Favorites table (with IF NOT EXISTS for safety)
   db.run(`
     CREATE TABLE IF NOT EXISTS favorites (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
@@ -59,10 +74,11 @@ function initializeTables() {
       chapter TEXT,
       verse_start INTEGER,
       verse_end INTEGER,
+      version TEXT DEFAULT 'esv',
       note TEXT,
       created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
       FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE,
-      UNIQUE(user_id, book, chapter, verse_start, verse_end)
+      UNIQUE(user_id, book, chapter, verse_start, verse_end, version)
     )
   `);
 
@@ -168,12 +184,12 @@ const favoritesOps = {
 
   // Add favorite
   addFavorite: (userId, favorite, callback) => {
-    const { book, chapter, verse_start, verse_end, note } = favorite;
-    
+    const { book, chapter, verse_start, verse_end, version, note } = favorite;
+
     db.run(
-      `INSERT INTO favorites (user_id, book, chapter, verse_start, verse_end, note) 
-       VALUES (?, ?, ?, ?, ?, ?)`,
-      [userId, book, chapter, verse_start, verse_end, note],
+      `INSERT INTO favorites (user_id, book, chapter, verse_start, verse_end, version, note)
+       VALUES (?, ?, ?, ?, ?, ?, ?)`,
+      [userId, book, chapter, verse_start, verse_end, version || 'esv', note],
       callback
     );
   },
@@ -188,10 +204,10 @@ const favoritesOps = {
   },
 
   // Check if verse is favorited
-  isFavorited: (userId, book, chapter, verse_start, verse_end, callback) => {
+  isFavorited: (userId, book, chapter, verse_start, verse_end, version, callback) => {
     db.get(
-      'SELECT id FROM favorites WHERE user_id = ? AND book = ? AND chapter = ? AND verse_start = ? AND verse_end = ?',
-      [userId, book, chapter, verse_start, verse_end],
+      'SELECT id FROM favorites WHERE user_id = ? AND book = ? AND chapter = ? AND verse_start = ? AND verse_end = ? AND version = ?',
+      [userId, book, chapter, verse_start, verse_end, version || 'esv'],
       (err, row) => {
         if (err) return callback(err);
         callback(null, !!row);