docs: Update comprehensive documentation with AI features, health checks, and architecture improvements

- Document automatic token verification on startup and note:// prefix for Markdown notes
- Add extensive AI capabilities section (Gemini integration, auto-tagging, content classification, multi-model fallback)
- Document link health monitoring system with dead link detection and exclusion features
- Add file sharing support (Markdown/text files) and deep links documentation
- Update technology

app/build.gradle.kts

@@ -44,8 +44,8 @@ android {
 
     buildTypes {
         release {
-            isMinifyEnabled = false
-            isShrinkResources = false
+            isMinifyEnabled = true
+            isShrinkResources = true
             signingConfig = signingConfigs.getByName("release")
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
@@ -67,6 +67,7 @@ android {
     }
     buildFeatures {
         compose = true
+        buildConfig = true
     }
     composeOptions {
         kotlinCompilerExtensionVersion = "1.5.4"
@@ -78,6 +79,10 @@ android {
     }
 }
 
+ksp {
+    arg("room.schemaLocation", "$projectDir/schemas")
+}
+
 dependencies {
 
     implementation(libs.androidx.core.ktx)
@@ -145,9 +150,15 @@ dependencies {
     // JSoup for HTML parsing (metadata extraction)
     implementation(libs.jsoup)
     
+    // Biometric
+    implementation(libs.androidx.biometric)
+
     // Google Gemini AI SDK
     implementation("com.google.ai.client.generativeai:generativeai:0.9.0")
 
+    // Baseline Profiles
+    implementation("androidx.profileinstaller:profileinstaller:1.3.1")
+
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
@@ -155,4 +166,5 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+    debugImplementation("com.squareup.leakcanary:leakcanary-android:2.13")
 }