feat: add centralized TestTags and testTag modifiers (Closes #31)

sharedUI/src/commonTest/kotlin/org/shahondin1624/TestTagsTest.kt

@@ -0,0 +1,58 @@
+package org.shahondin1624
+
+import org.shahondin1624.lib.components.TestTags
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class TestTagsTest {
+
+    @Test
+    fun attributeCardTagFormat() {
+        assertEquals("attribute_card_body", TestTags.attributeCard("Body"))
+        assertEquals("attribute_card_agility", TestTags.attributeCard("Agility"))
+        assertEquals("attribute_card_charisma", TestTags.attributeCard("Charisma"))
+    }
+
+    @Test
+    fun talentCardTagFormat() {
+        assertEquals("talent_card_firearms", TestTags.talentCard("Firearms"))
+        assertEquals("talent_card_close_combat", TestTags.talentCard("Close Combat"))
+    }
+
+    @Test
+    fun rollButtonTagFormat() {
+        assertEquals("roll_button_body", TestTags.rollButton("Body"))
+        assertEquals("roll_button_close_combat", TestTags.rollButton("Close Combat"))
+    }
+
+    @Test
+    fun navTagsAreDefined() {
+        assertEquals("nav_character_sheet", TestTags.NAV_CHARACTER_SHEET)
+        assertEquals("nav_settings", TestTags.NAV_SETTINGS)
+    }
+
+    @Test
+    fun panelTagsAreDefined() {
+        assertTrue(TestTags.PANEL_CHARACTER_HEADER.isNotBlank())
+        assertTrue(TestTags.PANEL_RESOURCES.isNotBlank())
+        assertTrue(TestTags.PANEL_DERIVED_ATTRIBUTES.isNotBlank())
+        assertTrue(TestTags.PANEL_DAMAGE_MONITOR.isNotBlank())
+    }
+
+    @Test
+    fun allTagsAreUnique() {
+        val staticTags = listOf(
+            TestTags.PANEL_CHARACTER_HEADER,
+            TestTags.PANEL_RESOURCES,
+            TestTags.PANEL_DERIVED_ATTRIBUTES,
+            TestTags.PANEL_DAMAGE_MONITOR,
+            TestTags.NAV_CHARACTER_SHEET,
+            TestTags.NAV_SETTINGS,
+            TestTags.TOP_APP_BAR,
+            TestTags.THEME_TOGGLE,
+            TestTags.MENU_BUTTON
+        )
+        assertEquals(staticTags.size, staticTags.toSet().size, "All static tags should be unique")
+    }
+}