Refactor: Consolidate navigation items into ScreenRegistry (#310)

* Refactor: Consolidate navigation items into ScreenRegistry

* fix(#310): remove unused imports, fix ktlint import ordering

* feat(#289): add ScreenRegistry for centralized screen configuration

* fix(#310): fix ktlint when-condition blank lines in Navigation.kt

* fix(#289): derive availableNavItems from ScreenRegistry

* fix(#310): use addEntryProvider instead of reified entry for dynamic screen registration

* fix(#310): remove double top padding from kanban, channels, achievements screens

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

app/src/main/java/com/m57/hermescontrol/ui/settings/SettingsViewModel.kt

@@ -2,7 +2,7 @@ package com.m57.hermescontrol.ui.settings
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.m57.hermescontrol.R
+import com.m57.hermescontrol.ScreenRegistry
 import com.m57.hermescontrol.data.local.AuthManager
 import com.m57.hermescontrol.data.remote.ApiClient
 import com.m57.hermescontrol.data.remote.NetworkResult
@@ -163,28 +163,9 @@ class SettingsViewModel : ViewModel() {
 
     /** All screens available for bottom-nav selection (name → display label). */
     val availableNavItems: List<Pair<String, Int>> =
-        listOf(
-            "ChatScreen" to R.string.screen_chat,
-            "SkillsScreen" to R.string.screen_skills,
-            "CronJobsScreen" to R.string.screen_cron,
-            "SystemScreen" to R.string.screen_system,
-            "SettingsScreen" to R.string.screen_settings,
-            "ProfilesScreen" to R.string.screen_profiles,
-            "WebhooksScreen" to R.string.screen_webhooks,
-            "GatewayScreen" to R.string.screen_gateway,
-            "HistoryScreen" to R.string.screen_history,
-            "ToolsetsScreen" to R.string.screen_toolsets,
-            "PluginsScreen" to R.string.screen_plugins,
-            "ConfigScreen" to R.string.screen_config,
-            "McpServersScreen" to R.string.screen_mcp_servers,
-            "ModelScreen" to R.string.screen_models,
-            "PairingScreen" to R.string.screen_pairing,
-            "KeysScreen" to R.string.screen_keys,
-            "ChannelsScreen" to R.string.screen_channels,
-            "LogsScreen" to R.string.screen_logs,
-            "KanbanScreen" to R.string.screen_kanban,
-            "AchievementsScreen" to R.string.screen_achievements,
-        )
+        ScreenRegistry.ALL_SCREENS.map { screen ->
+            screen.key::class.simpleName!! to screen.labelRes
+        }
 
     /** Add a nav item to the bottom bar (max 5). Auto-saves. */
     fun addNavItem(name: String) {