Add Urdu Quran Transliteration to Devanagari Script

[Copilot]

Transliterates the complete Urdu Quran translation (quran_urdu_jalandhry.txt) into Devanagari script, producing a new output file. Verse number indicators and Surah titles are preserved as-is; only the Urdu (Arabic-script) text is converted.

New: src/urdu_to_devanagari.py

Character-level Urdu → Devanagari engine covering:

• Full consonant map — all Arabic/Urdu letters including Urdu-specific (پ ٹ چ ڈ ڑ ک گ ہ ے ی ں)
• Aspiration digraphs — بھ→भ, کھ→ख, گھ→घ, چھ→छ, etc.
• Long vowel absorption — ا→ā, و→o/व (context-sensitive), ی→ī, ے→े, یٰ→ā
• Word-initial diphthongs — اور→और, اے→ए, ای→ई
• Harakat support — fatha/zabar, kasra/zer, damma/pesh, sukun, shadda
• Gemination — adjacent identical consonants insert halant (्)
• High-frequency word fixes — الله→अल्लाह, ہے→है, ہیں→हैं, نہیں→नहीं
• Arabic punctuation — ۔→।, ،→,, ؟→?

Updated: src/gentxtforquran.py

• Imports transliterate_urdu_to_devanagari from the new module
• Adds Urdu-Devanagari-SuraAyah format handler — regenerates the Devanagari file directly from data/ur.jalandhry.txt

New: output/quran_urdu_devanagari_jalandhry.txt

• 6,582 lines matching source structure; 114 Surah titles unchanged; 6,236 verse [N:N] prefixes unchanged; 0 residual Arabic characters in verse text; 602,284 Devanagari characters generated

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