Added complete NLT (New Living Translation) support and NKJV fixes

**NLT Integration:**
- Added NLT directory structure matching ESV/NKJV pattern
- Updated Dockerfile to COPY NLT /app/NLT
- Added NLT_DATA_DIR path and search engine initialization
- Updated getDataDir and /versions endpoints to support NLT
- Frontend will automatically include NLT in version dropdown

**NKJV Fixes:**
- Fixed thousands of NKJV chapter files (encoding, formatting issues)
- All NKJV content now serves correctly
- Preserves existing favorites and search functionality

**Complete 3-Version Bible Library:**
- ESV (English Standard Version) ✓
- NKJV (New King James Version) ✓
- NLT (New Living Translation) ✓

All versions now follow consistent directory structure and Docker integration!

NKJV/15_Ezra/Chapter_01.md

@@ -1,3 +1,4 @@
+End of the Babylonian Captivity
 
 # Chapter 1
 1. Now in the first year of Cyrus king of Persia, that the word of the Lord by the mouth of Jeremiah might be fulfilled, the Lord stirred up the spirit of Cyrus king of Persia, so that he made a proclamation throughout all his kingdom, and also put it in writing, saying,

NKJV/15_Ezra/Chapter_02.md

@@ -1,3 +1,4 @@
+The Captives Who Returned to Jerusalem
 
 # Chapter 2
 1. Now these are the people of the province who came back from the captivity, of those who had been carried away, whom Nebuchadnezzar the king of Babylon had carried away to Babylon, and who returned to Jerusalem and Judah, everyone to his own city.

NKJV/15_Ezra/Chapter_03.md

@@ -1,3 +1,4 @@
+Worship Restored at Jerusalem
 
 # Chapter 3
 1. And when the seventh month had come, and the children of Israel were in the cities, the people gathered together as one man to Jerusalem.

NKJV/15_Ezra/Chapter_04.md

@@ -1,3 +1,4 @@
+Resistance to Rebuilding the Temple
 
 # Chapter 4
 1. Now when the adversaries of Judah and Benjamin heard that the descendants of the captivity were building the temple of the Lord God of Israel,

NKJV/15_Ezra/Chapter_05.md

@@ -1,3 +1,4 @@
+Restoration of the Temple Resumed
 
 # Chapter 5
 1. Then the prophet Haggai and Zechariah the son of Iddo, prophets, prophesied to the Jews who were in Judah and Jerusalem, in the name of the God of Israel, who was over them.

NKJV/15_Ezra/Chapter_06.md

@@ -1,3 +1,4 @@
+The Decree of Darius
 
 # Chapter 6
 1. Then King Darius issued a decree, and a search was made in the archives, where the treasures were stored in Babylon.

NKJV/15_Ezra/Chapter_07.md

@@ -1,3 +1,4 @@
+The Arrival of Ezra
 
 # Chapter 7
 1. Now after these things, in the reign of Artaxerxes king of Persia, Ezra the son of Seraiah, the son of Azariah, the son of Hilkiah,

NKJV/15_Ezra/Chapter_08.md

@@ -1,3 +1,4 @@
+Heads of Families Who Returned with Ezra
 
 # Chapter 8
 1. These are the heads of their fathers' houses, and this is the genealogy of those who went up with me from Babylon, in the reign of King Artaxerxes:

NKJV/15_Ezra/Chapter_09.md

@@ -1,3 +1,4 @@
+Intermarriage with Pagans
 
 # Chapter 9
 1. When these things were done, the leaders came to me, saying, "The people of Israel and the priests and the Levites have not separated themselves from the peoples of the lands, with respect to the abominations of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites.

NKJV/15_Ezra/Chapter_10.md

@@ -1,3 +1,4 @@
+Confession of Improper Marriages
 
 # Chapter 10
 1. Now while Ezra was praying, and while he was confessing, weeping, and bowing down before the house of God, a very large assembly of men, women, and children gathered to him from Israel; for the people wept very bitterly.