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/27_Daniel/Chapter_01.md

@@ -1,3 +1,4 @@
+Daniel and His Friends Obey God
 
 # Chapter 1
 1. In the third year of the reign of Jehoiakim king of Judah, Nebuchadnezzar king of Babylon came to Jerusalem and besieged it.

NKJV/27_Daniel/Chapter_02.md

@@ -1,3 +1,4 @@
+Nebuchadnezzar's Dream
 
 # Chapter 2
 1. Now in the second year of Nebuchadnezzar's reign, Nebuchadnezzar had dreams; and his spirit was so troubled that his sleep left him.

NKJV/27_Daniel/Chapter_03.md

@@ -1,3 +1,4 @@
+The Image of Gold
 
 # Chapter 3
 1. Nebuchadnezzar the king made an image of gold, whose height was sixty cubits and its width six cubits. He set it up in the plain of Dura, in the province of Babylon.

NKJV/27_Daniel/Chapter_04.md

@@ -1,3 +1,4 @@
+Nebuchadnezzar's Second Dream
 
 # Chapter 4
 1. Nebuchadnezzar the king,

NKJV/27_Daniel/Chapter_05.md

@@ -1,3 +1,4 @@
+Belshazzar's Feast
 
 # Chapter 5
 1. Belshazzar the king made a great feast for a thousand of his lords, and drank wine in the presence of the thousand.

NKJV/27_Daniel/Chapter_06.md

@@ -1,3 +1,4 @@
+The Plot Against Daniel
 
 # Chapter 6
 1. It pleased Darius to set over the kingdom one hundred and twenty satraps, to be over the whole kingdom;

NKJV/27_Daniel/Chapter_07.md

@@ -1,3 +1,4 @@
+Vision of the Four Beasts
 
 # Chapter 7
 1. In the first year of Belshazzar king of Babylon, Daniel had a dream and visions of his head while on his bed. Then he wrote down the dream, telling the main facts.

NKJV/27_Daniel/Chapter_08.md

@@ -1,3 +1,4 @@
+Vision of a Ram and a Goat
 
 # Chapter 8
 1. In the third year of the reign of King Belshazzar a vision appeared to me--to me, Daniel--after the one that appeared to me the first time.

NKJV/27_Daniel/Chapter_09.md

@@ -1,3 +1,4 @@
+Daniel's Prayer for the People
 
 # Chapter 9
 1. In the first year of Darius the son of Ahasuerus, of the lineage of the Medes, who was made king over the realm of the Chaldeans--

NKJV/27_Daniel/Chapter_10.md

@@ -1,3 +1,4 @@
+Vision of the Glorious Man
 
 # Chapter 10
 1. In the third year of Cyrus king of Persia a message was revealed to Daniel, whose name was called Belteshazzar. The message was true, but the appointed time was long; and he understood the message, and had understanding of the vision.

NKJV/27_Daniel/Chapter_11.md

@@ -1,3 +1,4 @@
+Warring Kings of North and South
 
 # Chapter 11
 1. "Also in the first year of Darius the Mede, I, even I, stood up to confirm and strengthen him.)

NKJV/27_Daniel/Chapter_12.md

@@ -1,3 +1,4 @@
+Prophecy of the End Time
 
 # Chapter 12
 1. "At that time Michael shall stand up,