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

settings.gradle.kts

@@ -0,0 +1,18 @@
+rootProject.name = "photophetch"
+
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        mavenCentral()
+        google()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+}
+
+dependencyResolutionManagement {
+    repositories {
+        mavenCentral()
+        google()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+}