refactor: remove verified dead code across data, UI, and resources (#680)

* refactor: remove unused dead code across data, UI, and resources

* fix: resolve dangling references left by dead-code removal

Restore empty object Motion (braces required) and remove the 12 stale
test usages that still called the now-deleted production symbols:
- ServerStoreTest: removeServer/switchToServer tests
- ServerEndpointTest: isCleartext assertions
- ConnectViewModelTest: onHostChange/onPortChange tests + 3 dropped R.string refs
- SettingsViewModelTest: renameProfile tests + clearNavigateToLogin
- E2eIntegrationTest: previewSkill tests + onHostChange/onPortChange calls

Verified locally: compileDebugUnitTestKotlin + 48 tests pass.

* fix: remove unused imports flagged by ktlint

Drops 4 no-longer-referenced imports left by the dead-code removal:
- HermesApiService: SkillScanResponse (scanHubSkill removed)
- ServerEndpointTest: assertFalse, assertTrue (isCleartext assertions dropped)
- SettingsViewModelTest: assertFalse (rename tests removed)

---------

Co-authored-by: M57 <hy4ri@users.noreply.github.com>

app/src/test/java/com/m57/hermescontrol/ui/settings/SettingsViewModelTest.kt

@@ -16,7 +16,6 @@ import kotlinx.coroutines.test.resetMain
 import kotlinx.coroutines.test.setMain
 import org.junit.After
 import org.junit.Assert.assertEquals
-import org.junit.Assert.assertFalse
 import org.junit.Before
 import org.junit.Test
 
@@ -67,8 +66,6 @@ class SettingsViewModelTest {
         every { AuthManager.getConnectionProfiles() } returns emptyList()
         every { AuthManager.getSelectedProfileId() } answers { storedSelectedProfileId }
         every { AuthManager.baseUrl() } returns "http://127.0.0.1:9119/"
-        every { AuthManager.setHost(any()) } returns Unit
-        every { AuthManager.setPort(any()) } returns Unit
         every { AuthManager.setBaseUrl(any()) } returns Unit
         every { AuthManager.setToken(any()) } returns Unit
         every { AuthManager.setAutoReconnect(any()) } returns Unit
@@ -146,47 +143,6 @@ class SettingsViewModelTest {
         assertEquals(AuthManager.DEFAULT_PROFILE_ID, viewModel.uiState.value.selectedProfileId)
     }
 
-    @Test
-    fun testOnRenameProfileNameChange_updatesState() {
-        val viewModel = createViewModel()
-        viewModel.onRenameProfileNameChange("New Name")
-        assertEquals("New Name", viewModel.uiState.value.renameProfileName)
-        assertFalse(viewModel.uiState.value.isSaved)
-    }
-
-    @Test
-    fun testRenameProfile_updatesProfileName() {
-        every { AuthManager.getConnectionProfiles() } returns testProfiles
-        every { AuthManager.getSelectedProfileId() } returns "prof-1"
-
-        val viewModel = createViewModel()
-        viewModel.onRenameProfileNameChange("Renamed Work")
-        viewModel.renameProfile()
-
-        verify { AuthManager.saveConnectionProfiles(any()) }
-    }
-
-    @Test
-    fun testRenameProfile_withBlankName_doesNothing() {
-        every { AuthManager.getConnectionProfiles() } returns testProfiles
-        every { AuthManager.getSelectedProfileId() } returns "prof-1"
-
-        val viewModel = createViewModel()
-        viewModel.onRenameProfileNameChange("   ")
-        viewModel.renameProfile()
-
-        verify(exactly = 0) { AuthManager.saveConnectionProfiles(any()) }
-    }
-
-    @Test
-    fun testRenameProfile_noSelectedProfile_doesNothing() {
-        val viewModel = createViewModel()
-        viewModel.onRenameProfileNameChange("New Name")
-        viewModel.renameProfile()
-
-        verify(exactly = 0) { AuthManager.saveConnectionProfiles(any()) }
-    }
-
     @Test
     fun testDeleteProfile_removesProfileAndToken() {
         every { AuthManager.getConnectionProfiles() } returns testProfiles
@@ -233,8 +189,5 @@ class SettingsViewModelTest {
         verify { AuthManager.saveConnectionProfiles(any()) }
         verify { AuthManager.setSelectedProfileId(any()) }
         assertEquals(true, viewModel.uiState.value.navigateToLogin)
-
-        viewModel.clearNavigateToLogin()
-        assertEquals(false, viewModel.uiState.value.navigateToLogin)
     }
 }