refactor(01-03): apply recipe.* conventions to composeApp + shared, drop js

- composeApp/build.gradle.kts now applies 4 recipe.* IDs (kotlin.multiplatform, compose.multiplatform, android.application, quality); removes all structural target/android/nativeDistributions blocks (114 -> 28 lines)
- shared/build.gradle.kts applies recipe.kotlin.multiplatform + recipe.quality + androidLibrary; adds explicitApi() (D-12) and KotlinNativeTarget/Framework baseName = "Shared" override (D-07 / PITFALL #10); keeps android { } block per Open Question #1
- Adds libs.koin.android to androidMain dependencies (for Plan 04's MainApplication androidContext)
- Drops js target per D-01: removes js { browser() } from both modules and deletes shared/src/jsMain/Platform.js.kt
- iosX64 remains absent per D-02
- No version literals leak; tools/verify-no-version-literals.sh + verify-shared-pure.sh both pass

shared/build.gradle.kts

@@ -1,42 +1,24 @@
-import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
-import org.jetbrains.kotlin.gradle.dsl.JvmTarget
-
 plugins {
-    alias(libs.plugins.kotlinMultiplatform)
+    id("recipe.kotlin.multiplatform")
+    id("recipe.quality")
     alias(libs.plugins.androidLibrary)
 }
 
 kotlin {
-    androidTarget {
-        compilerOptions {
-            jvmTarget.set(JvmTarget.JVM_11)
+    explicitApi()
+
+    // Override framework baseName: shared exposes "Shared.framework" to Swift, while
+    // composeApp's convention-plugin default is "ComposeApp.framework". (D-07 / PITFALL #10)
+    targets.withType<org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeTarget>().configureEach {
+        binaries.withType<org.jetbrains.kotlin.gradle.plugin.mpp.Framework>().configureEach {
+            baseName = "Shared"
         }
     }
 
-    iosArm64()
-    iosSimulatorArm64()
-
-    jvm {
-        compilerOptions {
-            jvmTarget.set(JvmTarget.JVM_21)
-        }
-    }
-
-    js {
-        browser()
-    }
-
-    @OptIn(ExperimentalWasmDsl::class)
-    wasmJs {
-        browser()
-    }
-
     sourceSets {
         commonMain.dependencies {
-            // put your Multiplatform dependencies here
-        }
-        commonTest.dependencies {
-            implementation(libs.kotlin.test)
+            // Phase 1: intentionally empty. Domain models + DTOs land Phase 2+.
+            // D-19 / INFRA-06: Do NOT add Ktor, Compose, or SQLDelight deps here — EVER.
         }
     }
 }