Initial commit: Implement base health and cycle tracking application.

- Set up Android project structure with Gradle 8.7, Kotlin 2.0, and Hilt.
- Implement Room database with entities for Profiles, Day Logs, Conditions, Cycle Records, and Intimacy Logs.
- Integrate Jetpack Compose for the UI layer including Navigation and Material3.
- Develop a cycle prediction engine to calculate menstruation, fertile windows, and ovulation based on user history.
- Implement core screens:
    - **Onboarding:** Initial profile setup for female/male users.
    - **Calendar:** Monthly view showing cycle phases, logged symptoms, and intimacy records.
    - **Day Detail:** Detailed logging for symptoms (with ratings), period status, notes, and intimacy encounters.
    - **Cycle Insights:** Visualization of cycle phases and historical cycle length trends.
    - **Health Trends:** Frequency and recurrence analysis of logged health conditions over various time ranges.
    - **Settings:** Profile management, data clearing, and app theme configuration.
- Add DataStore for managing user preferences such as active profile and onboarding status.

Signed-off-by: whitlocktech <whitlocktech@gmail.com>

app/build.gradle.kts

@@ -0,0 +1,76 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.android)
+    alias(libs.plugins.kotlin.compose)
+    alias(libs.plugins.kotlin.serialization)
+    alias(libs.plugins.hilt)
+    alias(libs.plugins.ksp)
+}
+
+android {
+    namespace = "com.hsdiary"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.hsdiary"
+        minSdk = 26
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+    buildFeatures {
+        compose = true
+    }
+    packaging {
+        resources {
+            excludes += "/META-INF/{AL2.0,LGPL2.1}"
+        }
+    }
+}
+
+dependencies {
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.activity.compose)
+    implementation(platform(libs.compose.bom))
+    implementation(libs.compose.ui)
+    implementation(libs.compose.ui.graphics)
+    implementation(libs.compose.ui.tooling.preview)
+    implementation(libs.compose.material3)
+    implementation(libs.compose.material.icons.extended)
+    implementation(libs.lifecycle.runtime.ktx)
+    implementation(libs.lifecycle.viewmodel.compose)
+    implementation(libs.lifecycle.runtime.compose)
+    implementation(libs.navigation.compose)
+    implementation(libs.hilt.android)
+    ksp(libs.hilt.compiler)
+    implementation(libs.hilt.navigation.compose)
+    implementation(libs.room.runtime)
+    implementation(libs.room.ktx)
+    ksp(libs.room.compiler)
+    implementation(libs.datastore.preferences)
+    implementation(libs.kotlinx.coroutines.android)
+    implementation(libs.kotlinx.serialization.json)
+    debugImplementation(libs.compose.ui.tooling)
+}