core-crash: shared on-device crash capture + report dialog

First Android-library module in the kit. Privacy-respecting crash capture
(writes a self-contained, allowlist-only report to private storage, chains to
the platform handler, uploads nothing), startup crash-loop detection, a report
dialog showing the full text before it leaves the device, and an issue-tracker
hand-off. Extracted from Calendula and generalised: app label + issue URLs come
from a CrashConfig supplied at install(); each app keeps its own thin themed
CrashReportActivity. Lean deps (Compose + core-ktx). 3 unit tests on the pure
report builder.

Adds AGP/android-library + compose plugins and the compose/core-ktx libs to the
kit catalog; core-time stays a plain JVM module.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

core-crash/build.gradle.kts

@@ -0,0 +1,58 @@
+// core-crash — privacy-respecting, on-device crash capture + a report dialog and
+// issue-tracker hand-off, shared across the family. The reusable machinery lives
+// here; each app keeps a thin themed CrashReportActivity and supplies a
+// [CrashConfig] (app label + issue-tracker URLs) at install time.
+//
+// First Android-library module in the kit. Deliberately lean: Compose + core-ktx
+// only, no buildConfig, no extra-icons dependency.
+plugins {
+    // AGP 9.x provides built-in Kotlin compilation, so only the Compose plugin is
+    // applied alongside the Android library plugin (matches the apps' setup).
+    alias(libs.plugins.android.library)
+    alias(libs.plugins.kotlin.compose)
+}
+
+android {
+    namespace = "de.jeanlucmakiola.floret.crash"
+    compileSdk = 37
+
+    defaultConfig {
+        minSdk = 29
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    buildFeatures {
+        compose = true
+    }
+
+    testOptions {
+        unitTests {
+            all { it.useJUnitPlatform() }
+            isReturnDefaultValues = true
+        }
+    }
+}
+
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
+dependencies {
+    implementation(libs.androidx.core.ktx)
+
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.ui)
+    implementation(libs.androidx.foundation)
+    implementation(libs.androidx.material3)
+
+    testImplementation(libs.junit.jupiter.api)
+    testRuntimeOnly(libs.junit.jupiter.engine)
+    testRuntimeOnly(libs.junit.platform.launcher)
+    testImplementation(libs.truth)
+}