build(deps): upgrade gradle, agp, kotlin, compose and sdk to 37

- Bump compileSdk/targetSdk from 36 to 37 across all modules
- Upgrade gradle wrapper to 9.6.1
- Upgrade agp to 9.3.0, kotlin to 2.4.10, ksp to 2.3.10
- Upgrade composeBom to 2026.06.01 and compose libs
- Upgrade hilt to 2.60.1, room to 2.8.4, media3 to 1.10.1
- Upgrade okhttp to 5.4.0, coil to 3.5.0, datastore to 1.2.1
- Upgrade lifecycle to 2.11.0, activity-compose to 1.13.0
- Upgrade firebase crashlytics to 20.1.0, gms services to 4.5.0

gradle/wrapper/gradle-wrapper.properties

@@ -1,8 +1,8 @@
 #Thu Jan 15 19:48:32 CET 2026
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=2ab2958f2a1e51120c326cad6f385153bb11ee93b3c216c5fccebfdfbb7ec6cb
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.1-bin.zip
+distributionSha256Sum=9c0f7faeeb306cb14e4279a3e084ca6b596894089a0638e68a07c945a32c9e14
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME