perf(android): уменьшаем вес APK на ~33% (65→43.6 МБ)

- media_kit только для десктопа — убраны ffmpeg/libass/mdk с мобилы (~10 МБ)
- google_fonts заменён бандлом Inter/Outfit/Unbounded — убран реестр всех
  шрифтов из libapp.so (22→10 МБ)
- удалена неиспользуемая зависимость camera (CameraX)
- Dart-обфускация (--obfuscate --split-debug-info) в релизных CI + выгрузка
  символов
- кастомные шрифты с Google Fonts вернулись через FontLoader + кэш, без веса
- хардкод Inter заменён наследованием шрифта из активной темы

pubspec.lock

@@ -121,46 +121,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
-  camera:
-    dependency: "direct main"
-    description:
-      name: camera
-      sha256: "4142a19a38e388d3bab444227636610ba88982e36dff4552d5191a86f65dc437"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.11.4"
-  camera_android_camerax:
-    dependency: transitive
-    description:
-      name: camera_android_camerax
-      sha256: "8516fe308bc341a5067fb1a48edff0ddfa57c0d3cdcc9dbe7ceca3ba119e2577"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.6.30"
-  camera_avfoundation:
-    dependency: transitive
-    description:
-      name: camera_avfoundation
-      sha256: "11b4aee2f5e5e038982e152b4a342c749b414aa27857899d20f4323e94cb5f0b"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.9.23+2"
-  camera_platform_interface:
-    dependency: transitive
-    description:
-      name: camera_platform_interface
-      sha256: "7ac852d77699acee79f0d438b793feee26721841e50973576419ff5c6d95e9b7"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.13.0"
-  camera_web:
-    dependency: transitive
-    description:
-      name: camera_web
-      sha256: "1245a480a113437f8d46d19c0fb90cea9db921436d9cf2ba5fb11854a1312693"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.3.5+4"
   characters:
     dependency: transitive
     description:
@@ -669,14 +629,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.3"
-  google_fonts:
-    dependency: "direct main"
-    description:
-      name: google_fonts
-      sha256: "4e9391085e524954a51e3625b7c9c7e9851dc3f376603208bb45c24b9a66255d"
-      url: "https://pub.dev"
-    source: hosted
-    version: "8.1.0"
   gtk:
     dependency: transitive
     description:
@@ -893,24 +845,8 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.6"
-  media_kit_libs_android_video:
-    dependency: transitive
-    description:
-      name: media_kit_libs_android_video
-      sha256: "3f6274e5ab2de512c286a25c327288601ee445ed8ac319e0ef0b66148bd8f76c"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.3.8"
-  media_kit_libs_ios_video:
-    dependency: transitive
-    description:
-      name: media_kit_libs_ios_video
-      sha256: b5382994eb37a4564c368386c154ad70ba0cc78dacdd3fb0cd9f30db6d837991
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.1.4"
   media_kit_libs_linux:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: media_kit_libs_linux
       sha256: "2b473399a49ec94452c4d4ae51cfc0f6585074398d74216092bf3d54aac37ecf"
@@ -918,23 +854,15 @@ packages:
     source: hosted
     version: "1.2.1"
   media_kit_libs_macos_video:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: media_kit_libs_macos_video
       sha256: f26aa1452b665df288e360393758f84b911f70ffb3878032e1aabba23aa1032d
       url: "https://pub.dev"
     source: hosted
     version: "1.1.4"
-  media_kit_libs_video:
-    dependency: "direct main"
-    description:
-      name: media_kit_libs_video
-      sha256: "2b235b5dac79c6020e01eef5022c6cc85fedc0df1738aadc6ea489daa12a92a9"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.7"
   media_kit_libs_windows_video:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: media_kit_libs_windows_video
       sha256: dff76da2778729ab650229e6b4ec6ec111eb5151431002cbd7ea304ff1f112ab
@@ -1434,14 +1362,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
-  stream_transform:
-    dependency: transitive
-    description:
-      name: stream_transform
-      sha256: ad47125e588cfd37a9a7f86c7d6356dde8dfe89d071d293f80ca9e9273a33871
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.1.1"
   string_scanner:
     dependency: transitive
     description: