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/58_Hebrews/Chapter_01.md

@@ -1,3 +1,4 @@
+God's Supreme Revelation
 
 # Chapter 1
 1. God, who at various times and in various ways spoke in time past to the fathers by the prophets,

NKJV/58_Hebrews/Chapter_02.md

@@ -1,3 +1,4 @@
+Do Not Neglect Salvation
 
 # Chapter 2
 1. Therefore we must give the more earnest heed to the things we have heard, lest we drift away.

NKJV/58_Hebrews/Chapter_03.md

@@ -1,3 +1,4 @@
+The Son Was Faithful
 
 # Chapter 3
 1. Therefore, holy brethren, partakers of the heavenly calling, consider the Apostle and High Priest of our confession, Christ Jesus,

NKJV/58_Hebrews/Chapter_04.md

@@ -1,3 +1,4 @@
+The Promise of Rest
 
 # Chapter 4
 1. Therefore, since a promise remains of entering His rest, let us fear lest any of you seem to have come short of it.

NKJV/58_Hebrews/Chapter_05.md

@@ -1,3 +1,4 @@
+Qualifications for High Priesthood
 
 # Chapter 5
 1. For every high priest taken from among men is appointed for men in things pertaining to God, that he may offer both gifts and sacrifices for sins.

NKJV/58_Hebrews/Chapter_06.md

@@ -1,3 +1,4 @@
+The Peril of Not Progressing
 
 # Chapter 6
 1. Therefore, leaving the discussion of the elementary principles of Christ, let us go on to perfection, not laying again the foundation of repentance from dead works and of faith toward God,

NKJV/58_Hebrews/Chapter_07.md

@@ -1,3 +1,4 @@
+The King of Righteousness
 
 # Chapter 7
 1. For this Melchizedek, king of Salem, priest of the Most High God, who met Abraham returning from the slaughter of the kings and blessed him,

NKJV/58_Hebrews/Chapter_08.md

@@ -1,3 +1,4 @@
+The New Priestly Service
 
 # Chapter 8
 1. Now this is the main point of the things we are saying: We have such a High Priest, who is seated at the right hand of the throne of the Majesty in the heavens,

NKJV/58_Hebrews/Chapter_09.md

@@ -1,3 +1,4 @@
+The Earthly Sanctuary
 
 # Chapter 9
 1. Then indeed, even the first covenant had ordinances of divine service and the earthly sanctuary.

NKJV/58_Hebrews/Chapter_10.md

@@ -1,3 +1,4 @@
+Animal Sacrifices Insufficient
 
 # Chapter 10
 1. For the law, having a shadow of the good things to come, and not the very image of the things, can never with these same sacrifices, which they offer continually year by year, make those who approach perfect.

NKJV/58_Hebrews/Chapter_11.md

@@ -1,3 +1,4 @@
+By Faith We Understand
 
 # Chapter 11
 1. Now faith is the substance of things hoped for, the evidence of things not seen.

NKJV/58_Hebrews/Chapter_12.md

@@ -1,3 +1,4 @@
+The Race of Faith
 
 # Chapter 12
 1. Therefore we also, since we are surrounded by so great a cloud of witnesses, let us lay aside every weight, and the sin which so easily ensnares us, and let us run with endurance the race that is set before us,

NKJV/58_Hebrews/Chapter_13.md

@@ -1,3 +1,4 @@
+Concluding Moral Directions
 
 # Chapter 13
 1. Let brotherly love continue.