Agregar campo username a User entity y DTO

- Columna username (unique, nullable) en auth.users
- Campo username en CreateUserDto y UpdateUserDto

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tts/piper/espeak-ng-data/lang/art/eo

@@ -0,0 +1,4 @@
+name Esperanto
+language eo
+
+apostrophe 2

tts/piper/espeak-ng-data/lang/art/ia

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+name Interlingua
+language ia

tts/piper/espeak-ng-data/lang/art/io

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+name Ido
+language io
+phonemes eo
+status testing
+ 

tts/piper/espeak-ng-data/lang/art/jbo

@@ -0,0 +1,4 @@
+name Lojban
+language jbo
+
+speed 80   // speed adjustment, percentage

tts/piper/espeak-ng-data/lang/art/lfn

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+name Lingua Franca Nova
+language lfn
+
+phonemes base2
+l_unpronouncable 0
+numbers 2 3
+
+stressLength  150 140 180 180 0 0 200 200

tts/piper/espeak-ng-data/lang/art/piqd

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+name Klingon
+language piqd
+status testing
+stressRule 3
+

tts/piper/espeak-ng-data/lang/art/py

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+name Pyash
+language py
+maintainer Logan Streondj <logan@liberit.ca>
+status testing
+
+speed 80   // speed adjustment, percentage
+stressRule 0

tts/piper/espeak-ng-data/lang/art/qdb

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+name Lang Belta
+language qdb
+
+numbers 4 3
+
+replace 1 t ?

tts/piper/espeak-ng-data/lang/art/qya

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+name Quenya
+language qya
+stressRule 2
+// rule=penultimate, with qya_rules for light penultimate syllables to move primary stress to the preceding (antepenultimate) syllable

tts/piper/espeak-ng-data/lang/art/sjn

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+name Sindarin
+language sjn
+stressRule 2
+// rule=penultimate, with sjn_rules for light penultimate syllables to move primary stress to the preceding (antepenultimate) syllable