Initial commit: PhotoPhetch v1.0.0

Kotlin/Compose Multiplatform desktop app for importing photos from
phones into PhotoPhile staging directory.

Features:
- Android support via ADB subprocess
- iPhone support via gphoto2 subprocess
- Smart filtering: excludes screenshots, received images, Live Photo MOVs
- HEIC -> JPEG conversion via macOS sips (built-in)
- SHA-256 verification of every copied file
- Safe delete with explicit confirmation
- Staging path convention: _staging/{date}_{device}/
- Config persistence at ~/.photophetch/config.json

gradle/libs.versions.toml

@@ -0,0 +1,20 @@
+[versions]
+kotlin = "1.9.23"
+compose = "1.6.2"
+coroutines = "1.8.0"
+serialization = "1.6.3"
+slf4j = "2.0.12"
+logback = "1.5.3"
+
+[libraries]
+kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib", version.ref = "kotlin" }
+coroutines-core = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-core", version.ref = "coroutines" }
+coroutines-swing = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-swing", version.ref = "coroutines" }
+serialization-json = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "serialization" }
+slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
+logback-classic = { module = "ch.qos.logback:logback-classic", version.ref = "logback" }
+
+[plugins]
+kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
+compose-multiplatform = { id = "org.jetbrains.compose", version.ref = "compose" }