Initialize Compose Multiplatform project with AGP 9

Set up two-module structure for AGP 9 compatibility:
- composeApp: KMP shared library (com.android.kotlin.multiplatform.library)
- androidApp: Thin Android app shell (com.android.application)

Configure all dependencies in version catalog: CMP 1.11.0, Kotlin 2.3.21,
Ktor 3.4.3, Room 2.8.4, Coil 3.4.0, kotlinx-serialization/datetime/coroutines,
AndroidX Navigation 2.9.2, Lifecycle 2.10.0, DataStore 1.2.1, WorkManager 2.11.1.

Co-Authored-By: Claude Opus 4.6 (1M context)

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>

.gitignore

@@ -0,0 +1,24 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+/.idea/deploymentTargetSelector.xml
+.DS_Store
+/build
+*/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+*.hprof
+
+# KMP
+/composeApp/schemas
+/kotlin-js-store
+.kotlin/
+composeApp/schemas/