feat: Add template system to weevil new command

Implements template-based project creation allowing teams to start with
professional example code instead of empty projects.

Features:
- Two templates: 'basic' (minimal) and 'testing' (45-test showcase)
- Template variable substitution ({{PROJECT_NAME}}, etc.)
- Template validation with helpful error messages
- `weevil new --list-templates` command
- Template files embedded in binary at compile time

Technical details:
- Templates stored in templates/basic/ and templates/testing/
- Files ending in .template have variables replaced
- Uses include_dir! macro to embed templates in binary
- Returns file count for user feedback

Testing template includes:
- 3 complete subsystems (MotorCycler, WallApproach, TurnController)
- Hardware abstraction layer with mock implementations
- 45 comprehensive tests (unit, integration, system)
- Professional documentation (DESIGN_AND_TEST_PLAN.md, etc.)

Usage:
  weevil new my-robot                    # basic template
  weevil new my-robot --template testing # testing showcase
  weevil new --list-templates            # show available templates

This enables FTC teams to learn from working code and best practices
rather than starting from scratch.

templates/testing/build.gradle.kts

@@ -0,0 +1,84 @@
+plugins {
+    java
+}
+
+repositories {
+    mavenCentral()
+    google()
+}
+
+dependencies {
+    // Testing (runs on PC without SDK)
+    testImplementation("org.junit.jupiter:junit-jupiter:5.10.0")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+    testImplementation("org.mockito:mockito-core:5.5.0")
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
+}
+
+// Configure source sets to exclude FTC-dependent code from test compilation
+sourceSets {
+    main {
+        java {
+            // Exclude FTC-dependent files from test compilation
+            // These files use FTC SDK classes that don't exist on Windows
+            exclude(
+                "robot/hardware/FtcMotorController.java",
+                "robot/hardware/FtcDistanceSensor.java",
+                "robot/hardware/FtcGyroSensor.java",
+                "robot/opmodes/**/*.java"
+            )
+        }
+    }
+}
+
+tasks.test {
+    useJUnitPlatform()
+    testLogging {
+        events("passed", "skipped", "failed")
+        showStandardStreams = false
+        exceptionFormat = org.gradle.api.tasks.testing.logging.TestExceptionFormat.FULL
+    }
+}
+
+// Task to deploy code to FTC SDK
+tasks.register<Copy>("deployToSDK") {
+    group = "ftc"
+    description = "Copy code to FTC SDK TeamCode for deployment"
+    
+    val sdkDir = "C:\\Users\\Eric\\.weevil\\ftc-sdk"
+    
+    from("src/main/java") {
+        include("robot/**/*.java")
+    }
+    
+    into(layout.projectDirectory.dir("$sdkDir/TeamCode/src/main/java"))
+    
+    doLast {
+        println("✓ Code deployed to TeamCode")
+    }
+}
+
+// Task to build APK
+tasks.register<Exec>("buildApk") {
+    group = "ftc"
+    description = "Build APK using FTC SDK"
+    
+    dependsOn("deployToSDK")
+    
+    val sdkDir = "C:\\Users\\Eric\\.weevil\\ftc-sdk"
+    workingDir = file(sdkDir)
+    
+    commandLine = if (System.getProperty("os.name").lowercase().contains("windows")) {
+        listOf("cmd", "/c", "gradlew.bat", "assembleDebug")
+    } else {
+        listOf("./gradlew", "assembleDebug")
+    }
+    
+    doLast {
+        println("✓ APK built successfully")
+    }
+}