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/E2eIntegrationTest.kt

@@ -38,7 +38,6 @@ import com.m57.hermescontrol.data.model.ProfilesResponse
 import com.m57.hermescontrol.data.model.SessionInfo
 import com.m57.hermescontrol.data.model.SessionListResponse
 import com.m57.hermescontrol.data.model.Skill
-import com.m57.hermescontrol.data.model.SkillContentResponse
 import com.m57.hermescontrol.data.model.SkillHubSearchResponse
 import com.m57.hermescontrol.data.model.StatusResponse
 import com.m57.hermescontrol.data.model.SystemStatsResponse
@@ -100,8 +99,6 @@ class E2eIntegrationTest {
         every { AuthManager.getPort() } returns 9119
         every { AuthManager.getBaseUrl() } returns "https://127.0.0.1:9119/"
         every { AuthManager.setToken(any()) } returns Unit
-        every { AuthManager.setHost(any()) } returns Unit
-        every { AuthManager.setPort(any()) } returns Unit
         every { AuthManager.setBaseUrl(any()) } returns Unit
         every {
             AuthManager.endpoint()
@@ -471,47 +468,6 @@ class E2eIntegrationTest {
 
     // ── Skills Preview ────────────────────────────────────────────────────
 
-    @Test
-    fun testSkillsPreview_success() =
-        runTest {
-            val content = SkillContentResponse("my-skill", "# My Skill\n\nDo stuff")
-            coEvery { mockApiService.getSkillContent(any()) } returns
-                Response.success(content)
-
-            val viewModel = SkillsViewModel(mockApp)
-            viewModel.previewSkill("my-skill")
-
-            advanceUntilIdle()
-            assertFalse(viewModel.uiState.value.isLoadingPreview)
-            assertEquals(
-                "my-skill",
-                viewModel.uiState.value.previewSkillName,
-            )
-            assertEquals(
-                content.content,
-                viewModel.uiState.value.previewSkillContent,
-            )
-        }
-
-    @Test
-    fun testSkillsPreview_error() =
-        runTest {
-            coEvery { mockApiService.getSkillContent(any()) } returns
-                createErrorResponse(500)
-
-            val viewModel = SkillsViewModel(mockApp)
-            viewModel.previewSkill("failing-skill")
-
-            advanceUntilIdle()
-            assertFalse(viewModel.uiState.value.isLoadingPreview)
-            assertNull(viewModel.uiState.value.previewSkillContent)
-            assertNotNull(viewModel.uiState.value.toastMessage)
-            assertTrue(
-                viewModel.uiState.value.toastMessage!!
-                    .contains("HTTP 500"),
-            )
-        }
-
     // Cron Jobs Screen:
     @Test
     fun testCronJobsListing_success() =
@@ -1031,8 +987,6 @@ class E2eIntegrationTest {
 
             val connectViewModel = ConnectViewModel(mockApp)
             connectViewModel.onTokenChange("valid-token")
-            connectViewModel.onHostChange("127.0.0.1")
-            connectViewModel.onPortChange("9119")
             connectViewModel.connect()
             advanceUntilIdle()