refactor(#78): extract shared components and common strings to resources

app/src/main/java/com/m57/hermescontrol/ui/common/HermesScaffold.kt

@@ -21,6 +21,8 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.stringResource
+import com.m57.hermescontrol.R
 
 /**
  * Shared Scaffold wrapper that standardizes the TopAppBar.
@@ -69,7 +71,7 @@ fun HermesScaffold(
                             IconButton(onClick = onBack) {
                                 Icon(
                                     imageVector = Icons.AutoMirrored.Filled.ArrowBack,
-                                    contentDescription = "Back",
+                                    contentDescription = stringResource(R.string.content_desc_back),
                                     modifier = Modifier.testTag("back_button"),
                                 )
                             }
@@ -79,7 +81,7 @@ fun HermesScaffold(
                             IconButton(onClick = onOpenDrawer) {
                                 Icon(
                                     imageVector = Icons.Filled.Menu,
-                                    contentDescription = "Open navigation drawer",
+                                    contentDescription = stringResource(R.string.content_desc_open_drawer),
                                     modifier = Modifier.testTag("menu_button"),
                                 )
                             }
@@ -91,7 +93,7 @@ fun HermesScaffold(
                         IconButton(onClick = onRefresh) {
                             Icon(
                                 imageVector = Icons.Filled.Refresh,
-                                contentDescription = "Refresh",
+                                contentDescription = stringResource(R.string.content_desc_refresh),
                                 modifier = Modifier.testTag("refresh_button"),
                             )
                         }

app/src/main/java/com/m57/hermescontrol/ui/common/SharedComponents.kt

@@ -31,8 +31,10 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
+import com.m57.hermescontrol.R
 import com.m57.hermescontrol.theme.LocalHermesStatusColors
 import com.m57.hermescontrol.theme.LocalSpacing
 
@@ -215,7 +217,7 @@ fun SearchBar(
                 IconButton(onClick = { onQueryChange("") }) {
                     Icon(
                         imageVector = Icons.Filled.Close,
-                        contentDescription = "Clear search",
+                        contentDescription = stringResource(R.string.content_desc_clear_search),
                     )
                 }
             }

app/src/main/java/com/m57/hermescontrol/ui/common/StateViews.kt

@@ -23,8 +23,10 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
+import com.m57.hermescontrol.R
 import com.m57.hermescontrol.theme.LocalSpacing
 
 // Unified loading / error / empty / skeleton placeholders so every screen
@@ -94,7 +96,7 @@ fun ErrorState(
                     modifier = Modifier.size(18.dp),
                 )
                 Spacer(modifier = Modifier.size(spacing.sm))
-                Text("Retry")
+                Text(stringResource(R.string.action_retry))
             }
         }
     }