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/21_Ecclesiastes/Chapter_01.md

@@ -1,3 +1,4 @@
+The Vanity of Life
 
 # Chapter 1
 1. The words of the Preacher, the son of David, king in Jerusalem.

NKJV/21_Ecclesiastes/Chapter_02.md

@@ -1,3 +1,4 @@
+The Vanity of Pleasure
 
 # Chapter 2
 1. I said in my heart, "Come now, I will test you with mirth; therefore enjoy pleasure"; but surely, this also was vanity.

NKJV/21_Ecclesiastes/Chapter_03.md

@@ -1,3 +1,4 @@
+Everything Has Its Time
 
 # Chapter 3
 1. To everything there is a season,

NKJV/21_Ecclesiastes/Chapter_04.md

@@ -1,3 +1,4 @@
+The Uselessness of Selfish Toil
 
 # Chapter 4
 1. Then I returned and considered all the oppression that is done under the sun:

NKJV/21_Ecclesiastes/Chapter_05.md

@@ -1,3 +1,4 @@
+Fear God, Keep Your Vows
 
 # Chapter 5
 1. Walk prudently when you go to the house of God; and draw near to hear rather than to give the sacrifice of fools, for they do not know that they do evil.

NKJV/21_Ecclesiastes/Chapter_06.md

@@ -1,3 +1,4 @@
+Wealth Is Not the Goal of Life
 
 # Chapter 6
 1. There is an evil which I have seen under the sun, and it is common among men:

NKJV/21_Ecclesiastes/Chapter_07.md

@@ -1,3 +1,4 @@
+The Value of Practical Wisdom
 
 # Chapter 7
 1. A good name is better than precious ointment,

NKJV/21_Ecclesiastes/Chapter_08.md

@@ -1,3 +1,4 @@
+Obey Authorities for God's Sake
 
 # Chapter 8
 1. Who is like a wise man?

NKJV/21_Ecclesiastes/Chapter_09.md

@@ -1,3 +1,4 @@
+Death Comes to All
 
 # Chapter 9
 1. For I considered all this in my heart, so that I could declare it all: that the righteous and the wise and their works are in the hand of God. People know neither love nor hatred by anything they see before them.

NKJV/21_Ecclesiastes/Chapter_10.md

@@ -1,3 +1,4 @@
+Wisdom and Folly
 
 # Chapter 10
 1. Dead flies putrefy the perfumer's ointment,

NKJV/21_Ecclesiastes/Chapter_11.md

@@ -1,3 +1,4 @@
+The Value of Diligence
 
 # Chapter 11
 1. Cast your bread upon the waters,

NKJV/21_Ecclesiastes/Chapter_12.md

@@ -1,3 +1,4 @@
+Seek God in Early Life
 
 # Chapter 12
 1. Remember now your Creator in the days of your youth,