feat: Implement full synchronization manager, new link repository, various UI screens, and note background resources.

app/src/main/java/com/shaarit/core/storage/HiddenTagsPreferences.kt

@@ -0,0 +1,228 @@
+package com.shaarit.core.storage
+
+import android.content.Context
+import android.content.SharedPreferences
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import javax.inject.Inject
+import javax.inject.Singleton
+
+/**
+ * Définition d'un tag système prédéfini.
+ * @param tag Le nom du tag (ou pattern wildcard comme "note-color-*")
+ * @param label Nom affiché à l'utilisateur
+ * @param description Courte description du rôle du tag
+ * @param isWildcard Si true, le tag utilise un pattern wildcard (ex: "note-color-*")
+ * @param defaultHidden Si true, le tag est caché par défaut
+ */
+data class PresetSystemTag(
+    val tag: String,
+    val label: String,
+    val description: String,
+    val isWildcard: Boolean = false,
+    val defaultHidden: Boolean = true
+)
+
+@Singleton
+class HiddenTagsPreferences @Inject constructor(
+    @ApplicationContext private val context: Context
+) {
+    private val prefs: SharedPreferences =
+        context.getSharedPreferences("hidden_tags_prefs", Context.MODE_PRIVATE)
+
+    companion object {
+        private const val KEY_PRESET_PREFIX = "preset_hidden_"
+        private const val KEY_CUSTOM_TAGS = "custom_hidden_tags"
+
+        /**
+         * Liste des tags systèmes prédéfinis utilisés par l'application.
+         */
+        val PRESET_SYSTEM_TAGS = listOf(
+            PresetSystemTag(
+                tag = "note",
+                label = "note",
+                description = "Notes - Identifiant interne des notes",
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "shaarli-pin",
+                label = "shaarli-pin",
+                description = "Épinglé - Garde les favoris en haut",
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "note-color-*",
+                label = "note-color-*",
+                description = "Couleurs des Notes - Wildcard pour les couleurs",
+                isWildcard = true,
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "notebg-*",
+                label = "notebg-*",
+                description = "Fonds des Notes - Wildcard pour les arrière-plans",
+                isWildcard = true,
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "notefilter-*",
+                label = "notefilter-*",
+                description = "Filtres des Notes - Wildcard pour les filtres",
+                isWildcard = true,
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "readitlater",
+                label = "readitlater",
+                description = "À lire plus tard - Liste de lecture temporaire",
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "shaarli-archive",
+                label = "shaarli-archive",
+                description = "Archivé - Notes archivées",
+                defaultHidden = false
+            ),
+            PresetSystemTag(
+                tag = "todo",
+                label = "todo",
+                description = "Tâches - Identifiant interne des tâches",
+                defaultHidden = true
+            ),
+            PresetSystemTag(
+                tag = "brain-dump",
+                label = "brain-dump",
+                description = "Brain Dump - Capture rapide d'idées",
+                defaultHidden = true
+            )
+        )
+    }
+
+    // État réactif pour les presets
+    private val _presetStates = MutableStateFlow(loadAllPresetStates())
+    val presetStates: StateFlow<Map<String, Boolean>> = _presetStates.asStateFlow()
+
+    // État réactif pour les tags custom
+    private val _customHiddenTags = MutableStateFlow(loadCustomHiddenTags())
+    val customHiddenTags: StateFlow<Set<String>> = _customHiddenTags.asStateFlow()
+
+    /**
+     * Charge l'état (caché ou non) de chaque tag preset depuis SharedPreferences.
+     */
+    private fun loadAllPresetStates(): Map<String, Boolean> {
+        return PRESET_SYSTEM_TAGS.associate { preset ->
+            preset.tag to prefs.getBoolean(
+                KEY_PRESET_PREFIX + preset.tag,
+                preset.defaultHidden
+            )
+        }
+    }
+
+    /**
+     * Charge la liste des tags custom cachés.
+     */
+    private fun loadCustomHiddenTags(): Set<String> {
+        return prefs.getStringSet(KEY_CUSTOM_TAGS, emptySet()) ?: emptySet()
+    }
+
+    /**
+     * Active/désactive le masquage d'un tag preset.
+     */
+    fun setPresetHidden(tag: String, hidden: Boolean) {
+        prefs.edit().putBoolean(KEY_PRESET_PREFIX + tag, hidden).apply()
+        _presetStates.value = loadAllPresetStates()
+    }
+
+    /**
+     * Vérifie si un tag preset est caché.
+     */
+    fun isPresetHidden(tag: String): Boolean {
+        return _presetStates.value[tag] ?: PRESET_SYSTEM_TAGS.find { it.tag == tag }?.defaultHidden ?: false
+    }
+
+    /**
+     * Ajoute un tag custom à la liste des tags cachés.
+     */
+    fun addCustomHiddenTag(tag: String) {
+        val normalizedTag = tag.trim().lowercase()
+        if (normalizedTag.isBlank()) return
+        val currentTags = loadCustomHiddenTags().toMutableSet()
+        currentTags.add(normalizedTag)
+        prefs.edit().putStringSet(KEY_CUSTOM_TAGS, currentTags).apply()
+        _customHiddenTags.value = currentTags
+    }
+
+    /**
+     * Supprime un tag custom de la liste des tags cachés.
+     */
+    fun removeCustomHiddenTag(tag: String) {
+        val currentTags = loadCustomHiddenTags().toMutableSet()
+        currentTags.remove(tag)
+        prefs.edit().putStringSet(KEY_CUSTOM_TAGS, currentTags).apply()
+        _customHiddenTags.value = currentTags
+    }
+
+    /**
+     * Remet tous les presets à leur valeur par défaut et supprime tous les tags custom.
+     */
+    fun resetToDefaults() {
+        val editor = prefs.edit()
+        PRESET_SYSTEM_TAGS.forEach { preset ->
+            editor.putBoolean(KEY_PRESET_PREFIX + preset.tag, preset.defaultHidden)
+        }
+        editor.putStringSet(KEY_CUSTOM_TAGS, emptySet())
+        editor.apply()
+        _presetStates.value = loadAllPresetStates()
+        _customHiddenTags.value = emptySet()
+    }
+
+    /**
+     * Détermine si un tag donné doit être caché (en vérifiant les presets ET les custom).
+     * Supporte les wildcards (ex: "note-color-*" match "note-color-red").
+     */
+    fun isTagHidden(tagName: String): Boolean {
+        val normalizedTag = tagName.lowercase()
+
+        // Vérifier les presets
+        for (preset in PRESET_SYSTEM_TAGS) {
+            val isHidden = _presetStates.value[preset.tag] ?: preset.defaultHidden
+            if (!isHidden) continue
+
+            if (preset.isWildcard) {
+                val prefix = preset.tag.removeSuffix("*")
+                if (normalizedTag.startsWith(prefix)) return true
+            } else {
+                if (normalizedTag == preset.tag) return true
+            }
+        }
+
+        // Vérifier les custom
+        for (customTag in _customHiddenTags.value) {
+            if (customTag.endsWith("*")) {
+                val prefix = customTag.removeSuffix("*")
+                if (normalizedTag.startsWith(prefix)) return true
+            } else {
+                if (normalizedTag == customTag) return true
+            }
+        }
+
+        return false
+    }
+
+    /**
+     * Retourne tous les tags actuellement cachés (pour debug/info).
+     */
+    fun getAllHiddenTagPatterns(): List<String> {
+        val result = mutableListOf<String>()
+
+        for (preset in PRESET_SYSTEM_TAGS) {
+            val isHidden = _presetStates.value[preset.tag] ?: preset.defaultHidden
+            if (isHidden) result.add(preset.tag)
+        }
+
+        result.addAll(_customHiddenTags.value)
+        return result
+    }
+}

app/src/main/java/com/shaarit/data/repository/LinkRepositoryImpl.kt

@@ -212,6 +212,7 @@ constructor(
             description = description ?: "",
             tags = tags ?: emptyList(),
             isPrivate = isPrivate,
+            isPinned = tags?.contains("shaarli-pin") ?: false,
             createdAt = System.currentTimeMillis(),
             updatedAt = System.currentTimeMillis(),
             syncStatus = SyncStatus.PENDING_CREATE
@@ -255,6 +256,7 @@ constructor(
                         description = description ?: existing.description,
                         tags = tags ?: existing.tags,
                         isPrivate = isPrivate,
+                        isPinned = tags?.contains("shaarli-pin") ?: existing.isPinned,
                         updatedAt = System.currentTimeMillis(),
                         syncStatus = SyncStatus.PENDING_UPDATE
                     )
@@ -318,6 +320,7 @@ constructor(
             description = description ?: existing.description,
             tags = tags ?: existing.tags,
             isPrivate = isPrivate,
+            isPinned = tags?.contains("shaarli-pin") ?: existing.isPinned,
             updatedAt = System.currentTimeMillis(),
             syncStatus = if (existing.syncStatus == SyncStatus.PENDING_CREATE) {
                 SyncStatus.PENDING_CREATE
@@ -572,6 +575,7 @@ constructor(
             description = description ?: "",
             tags = tags ?: emptyList(),
             isPrivate = isPrivate ?: false,
+            isPinned = tags?.contains("shaarli-pin") ?: false,
             createdAt = parseDate(created),
             updatedAt = parseDate(updated),
             syncStatus = SyncStatus.SYNCED

app/src/main/java/com/shaarit/data/sync/SyncManager.kt

@@ -451,7 +451,7 @@ class SyncManager @Inject constructor(
                                 description = dto.description ?: "",
                                 tags = dto.tags ?: emptyList(),
                                 isPrivate = dto.isPrivate ?: false,
-                                isPinned = existing?.isPinned ?: false,
+                                isPinned = dto.tags?.contains("shaarli-pin") ?: false,
                                 createdAt = parseDate(dto.created),
                                 updatedAt = if (serverUpdatedAt > 0L) serverUpdatedAt else existing?.updatedAt ?: syncStartTime,
                                 syncStatus = SyncStatus.SYNCED,

app/src/main/java/com/shaarit/presentation/add/AddLinkScreen.kt

@@ -458,6 +458,41 @@ fun AddLinkScreen(
                     }
                 }
 
+                // Background Selection Section (Compact)
+                AnimatedVisibility(
+                    visible = contentTypeSelection == ContentType.NOTE,
+                    enter = expandVertically() + fadeIn(),
+                    exit = shrinkVertically() + fadeOut()
+                ) {
+                    CompactFieldCard(
+                        icon = Icons.Default.Image,
+                        label = "Arrière-plan"
+                    ) {
+                        val noteBackgrounds = listOf("Aucun", "cafe", "codes", "dune", "feuilleligne", "feuillequadrille", "fleurs", "foret", "grid", "journal", "lecture", "legumes", "montagnes", "ocean", "radio", "sports", "vague1", "vague2", "ville", "voyage")
+                        val currentBgTag = selectedTags.firstOrNull { it.lowercase().startsWith("notebg-") }?.lowercase()?.removePrefix("notebg-") ?: "Aucun"
+                        
+                        LazyRow(
+                            horizontalArrangement = Arrangement.spacedBy(8.dp),
+                            modifier = Modifier.fillMaxWidth().padding(top = 8.dp)
+                        ) {
+                            items(noteBackgrounds) { bgName ->
+                                val isSelected = currentBgTag == bgName
+                                FilterChip(
+                                    selected = isSelected,
+                                    onClick = {
+                                        val existingBgTags = selectedTags.filter { it.lowercase().startsWith("notebg-") }
+                                        existingBgTags.forEach { viewModel.removeTag(it) }
+                                        if (bgName != "Aucun") {
+                                            viewModel.addTag("notebg-$bgName")
+                                        }
+                                    },
+                                    label = { Text(if (bgName == "Aucun") "Aucun" else bgName.replaceFirstChar { it.uppercase() }) }
+                                )
+                            }
+                        }
+                    }
+                }
+
                 // Tags Section avec correction du clavier - se positionne au-dessus du clavier
                 GlassCard(
                     modifier = Modifier

app/src/main/java/com/shaarit/presentation/edit/EditLinkScreen.kt

@@ -391,6 +391,41 @@ fun EditLinkScreen(
                             }
                         }
 
+                        // Background Selection Section (Compact)
+                        AnimatedVisibility(
+                            visible = contentType == ContentType.NOTE,
+                            enter = expandVertically() + fadeIn(),
+                            exit = shrinkVertically() + fadeOut()
+                        ) {
+                            CompactFieldCard(
+                                icon = Icons.Default.Image,
+                                label = "Arrière-plan"
+                            ) {
+                                val noteBackgrounds = listOf("Aucun", "cafe", "codes", "dune", "feuilleligne", "feuillequadrille", "fleurs", "foret", "grid", "journal", "lecture", "legumes", "montagnes", "ocean", "radio", "sports", "vague1", "vague2", "ville", "voyage")
+                                val currentBgTag = selectedTags.firstOrNull { it.lowercase().startsWith("notebg-") }?.lowercase()?.removePrefix("notebg-") ?: "Aucun"
+                                
+                                LazyRow(
+                                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                                    modifier = Modifier.fillMaxWidth().padding(top = 8.dp)
+                                ) {
+                                    items(noteBackgrounds) { bgName ->
+                                        val isSelected = currentBgTag == bgName
+                                        FilterChip(
+                                            selected = isSelected,
+                                            onClick = {
+                                                val existingBgTags = selectedTags.filter { it.lowercase().startsWith("notebg-") }
+                                                existingBgTags.forEach { viewModel.removeTag(it) }
+                                                if (bgName != "Aucun") {
+                                                    viewModel.addTag("notebg-$bgName")
+                                                }
+                                            },
+                                            label = { Text(if (bgName == "Aucun") "Aucun" else bgName.replaceFirstChar { it.uppercase() }) }
+                                        )
+                                    }
+                                }
+                            }
+                        }
+
                         // Tags Section avec correction du clavier - se positionne au-dessus du clavier
                         GlassCard(
                             modifier = Modifier

app/src/main/java/com/shaarit/presentation/feed/FeedScreen.kt

@@ -297,7 +297,7 @@ fun FeedScreen(
     val bookmarkFilter by viewModel.bookmarkFilter.collectAsState()
 
     val collections by viewModel.collections.collectAsState()
-    val tags by viewModel.tags.collectAsState()
+    val visibleTags by viewModel.visibleTags.collectAsState()
 
     val context = LocalContext.current
     val haptic = LocalHapticFeedback.current
@@ -728,8 +728,8 @@ fun FeedScreen(
                             horizontalArrangement = Arrangement.spacedBy(8.dp),
                             verticalArrangement = Arrangement.spacedBy(8.dp)
                         ) {
-                            // Display all tags ordered by bookmark count (highest first)
-                            tags.forEach { tag ->
+                            // Display all visible tags ordered by bookmark count (highest first)
+                            visibleTags.forEach { tag ->
                                 val isSelected = searchTags?.split(" ")?.contains(tag.name) == true
                                 DrawerTagChip(
                                     tag = tag.name,

app/src/main/java/com/shaarit/presentation/feed/FeedViewModel.kt

@@ -4,6 +4,8 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import androidx.paging.PagingData
 import androidx.paging.cachedIn
+import androidx.paging.map
+import com.shaarit.core.storage.HiddenTagsPreferences
 import com.shaarit.core.storage.TokenManager
 import com.shaarit.data.local.dao.CollectionDao
 import com.shaarit.data.local.dao.TagDao
@@ -28,6 +30,7 @@ import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.flatMapLatest
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.launch
@@ -46,7 +49,8 @@ class FeedViewModel @Inject constructor(
     private val collectionDao: CollectionDao,
     private val tagDao: TagDao,
     private val tokenManager: TokenManager,
-    private val linkDao: LinkDao
+    private val linkDao: LinkDao,
+    val hiddenTagsPreferences: HiddenTagsPreferences
 ) : ViewModel() {
 
     private val _searchQuery = MutableStateFlow("")
@@ -76,6 +80,11 @@ class FeedViewModel @Inject constructor(
             .getAllTags()
             .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
 
+    // Tags filtered: hide system/custom hidden tags from the drawer
+    val visibleTags = combine(tags, hiddenTagsPreferences.presetStates, hiddenTagsPreferences.customHiddenTags) { tagList, _, _ ->
+        tagList.filter { !hiddenTagsPreferences.isTagHidden(it.name) }
+    }.stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), emptyList())
+
     @OptIn(FlowPreview::class, ExperimentalCoroutinesApi::class)
     val pagedLinks: Flow<PagingData<ShaarliLink>> = run {
         val debouncedSearch = _searchQuery.debounce(300)
@@ -93,6 +102,12 @@ class FeedViewModel @Inject constructor(
                     bookmarkFilter = bookmarkFilter
                 )
             }
+            // Filter hidden tags from each link's tag list for display purposes
+            .map { pagingData: PagingData<ShaarliLink> ->
+                pagingData.map { link: ShaarliLink ->
+                    link.copy(tags = link.tags.filter { tag -> !hiddenTagsPreferences.isTagHidden(tag) })
+                }
+            }
             .cachedIn(viewModelScope)
     }
 

app/src/main/java/com/shaarit/presentation/feed/LinkItemViews.kt

@@ -113,10 +113,22 @@ fun ListViewItem(
         )
     }
 
+    val context = LocalContext.current
+    val backgroundResId = remember(link.tags) {
+        val bgTag = link.tags.firstOrNull { it.lowercase().startsWith("notebg-") }
+        if (bgTag != null) {
+            val theme = bgTag.lowercase().removePrefix("notebg-")
+            val resName = "note_bg_$theme"
+            val resId = context.resources.getIdentifier(resName, "drawable", context.packageName)
+            if (resId != 0) resId else null
+        } else null
+    }
+
     GlassCard(
         modifier = Modifier.fillMaxWidth(),
         onClick = { (onItemClick ?: { onLinkClick(link.url) }).invoke() },
         onLongClick = onItemLongClick,
+        backgroundImage = backgroundResId,
         glowColor = if (isSelected) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.primary
     ) {
         Column {
@@ -338,15 +350,33 @@ fun GridViewItem(
         )
     }
 
+    val context = LocalContext.current
+    val backgroundResId = remember(link.tags) {
+        val bgTag = link.tags.firstOrNull { it.lowercase().startsWith("notebg-") }
+        if (bgTag != null) {
+            val theme = bgTag.lowercase().removePrefix("notebg-")
+            val resName = "note_bg_$theme"
+            val resId = context.resources.getIdentifier(resName, "drawable", context.packageName)
+            if (resId != 0) resId else null
+        } else null
+    }
+
+    val baseModifier = Modifier.fillMaxWidth()
+    val cardModifier = if (backgroundResId != null) {
+        baseModifier.height(240.dp)
+    } else {
+        baseModifier
+    }
+
     GlassCard(
-        modifier = Modifier
-            .fillMaxWidth(),
+        modifier = cardModifier,
         onClick = { (onItemClick ?: { onLinkClick(link.url) }).invoke() },
         onLongClick = onItemLongClick,
+        backgroundImage = backgroundResId,
         glowColor = if (isSelected) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.primary
     ) {
         Column(
-            modifier = Modifier.fillMaxWidth()
+            modifier = Modifier.fillMaxSize()
         ) {
             // Selection checkbox
             if (selectionMode) {
@@ -441,7 +471,7 @@ fun GridViewItem(
                 }
             }
 
-            Spacer(modifier = Modifier.height(8.dp))
+            Spacer(modifier = Modifier.weight(1f).heightIn(min = 8.dp))
 
             // Metadata row
             Row(

app/src/main/java/com/shaarit/presentation/settings/SettingsScreen.kt

@@ -36,7 +36,9 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.shaarit.core.storage.BiometricAuthManager
 import com.shaarit.core.storage.BiometricAvailability
+import com.shaarit.core.storage.HiddenTagsPreferences
 import com.shaarit.core.storage.LockTimeout
+import com.shaarit.core.storage.PresetSystemTag
 import com.shaarit.core.storage.SecurityPreferences
 import com.shaarit.core.storage.TimezonePreferences
 import com.shaarit.data.export.BookmarkImporter
@@ -149,6 +151,18 @@ fun SettingsScreen(
                 )
             }
 
+            // Hidden Tags Section
+            item {
+                Spacer(modifier = Modifier.height(16.dp))
+                SettingsSection(title = "Tags cachés")
+            }
+
+            item {
+                HiddenTagsSettingsItem(
+                    hiddenTagsPreferences = viewModel.hiddenTagsPreferences
+                )
+            }
+
             // Security Section
             item {
                 Spacer(modifier = Modifier.height(16.dp))
@@ -1320,3 +1334,328 @@ private fun WidgetLinkCountItem() {
         }
     }
 }
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun HiddenTagsSettingsItem(
+    hiddenTagsPreferences: HiddenTagsPreferences
+) {
+    var showDialog by remember { mutableStateOf(false) }
+    val presetStates by hiddenTagsPreferences.presetStates.collectAsState()
+    val customTags by hiddenTagsPreferences.customHiddenTags.collectAsState()
+    val hiddenCount = presetStates.count { it.value } + customTags.size
+
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable { showDialog = true }
+    ) {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(16.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Icon(
+                imageVector = Icons.Default.VisibilityOff,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.primary
+            )
+            Spacer(modifier = Modifier.width(16.dp))
+            Column(modifier = Modifier.weight(1f)) {
+                Text(
+                    text = "Tags cachés",
+                    style = MaterialTheme.typography.bodyLarge
+                )
+                Text(
+                    text = "$hiddenCount tag(s) masqué(s)",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+            Icon(
+                imageVector = Icons.Default.ChevronRight,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+    }
+
+    if (showDialog) {
+        HiddenTagsDialog(
+            hiddenTagsPreferences = hiddenTagsPreferences,
+            onDismiss = { showDialog = false }
+        )
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun HiddenTagsDialog(
+    hiddenTagsPreferences: HiddenTagsPreferences,
+    onDismiss: () -> Unit
+) {
+    val presetStates by hiddenTagsPreferences.presetStates.collectAsState()
+    val customTags by hiddenTagsPreferences.customHiddenTags.collectAsState()
+    var customTagInput by remember { mutableStateOf("") }
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 24.dp),
+        title = {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Icon(
+                    imageVector = Icons.Default.VisibilityOff,
+                    contentDescription = null,
+                    tint = MaterialTheme.colorScheme.primary,
+                    modifier = Modifier.size(28.dp)
+                )
+                Spacer(modifier = Modifier.width(12.dp))
+                Text(
+                    text = "Tags cachés",
+                    style = MaterialTheme.typography.headlineSmall
+                )
+            }
+        },
+        text = {
+            LazyColumn(
+                verticalArrangement = Arrangement.spacedBy(4.dp)
+            ) {
+                // Info banner
+                item {
+                    Surface(
+                        modifier = Modifier.fillMaxWidth(),
+                        shape = RoundedCornerShape(12.dp),
+                        color = MaterialTheme.colorScheme.primaryContainer.copy(alpha = 0.3f)
+                    ) {
+                        Row(
+                            modifier = Modifier.padding(12.dp),
+                            verticalAlignment = Alignment.Top
+                        ) {
+                            Icon(
+                                imageVector = Icons.Default.Info,
+                                contentDescription = null,
+                                tint = MaterialTheme.colorScheme.primary,
+                                modifier = Modifier.size(18.dp)
+                            )
+                            Spacer(modifier = Modifier.width(8.dp))
+                            Text(
+                                text = "Les tags cachés sont des tags fonctionnels utilisés par l'application qui restent invisibles. Ils sont toujours opérationnels pour les fonctions internes.",
+                                style = MaterialTheme.typography.bodySmall,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant
+                            )
+                        }
+                    }
+                }
+
+                // Preset System Tags Section
+                item {
+                    Spacer(modifier = Modifier.height(16.dp))
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text(
+                            text = "🏷️",
+                            style = MaterialTheme.typography.titleMedium
+                        )
+                        Spacer(modifier = Modifier.width(8.dp))
+                        Text(
+                            text = "Tags systèmes prédéfinis",
+                            style = MaterialTheme.typography.titleMedium,
+                            color = MaterialTheme.colorScheme.onSurface
+                        )
+                    }
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Text(
+                        text = "Activer/désactiver la visibilité des tags système",
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                    )
+                }
+
+                // Preset tag items
+                items(
+                    count = HiddenTagsPreferences.PRESET_SYSTEM_TAGS.size,
+                    key = { HiddenTagsPreferences.PRESET_SYSTEM_TAGS[it].tag }
+                ) { index ->
+                    val preset = HiddenTagsPreferences.PRESET_SYSTEM_TAGS[index]
+                    val isHidden = presetStates[preset.tag] ?: preset.defaultHidden
+
+                    Surface(
+                        modifier = Modifier.fillMaxWidth(),
+                        shape = RoundedCornerShape(8.dp),
+                        color = MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.4f)
+                    ) {
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .clickable {
+                                    hiddenTagsPreferences.setPresetHidden(preset.tag, !isHidden)
+                                }
+                                .padding(horizontal = 12.dp, vertical = 8.dp),
+                            verticalAlignment = Alignment.CenterVertically
+                        ) {
+                            Checkbox(
+                                checked = isHidden,
+                                onCheckedChange = { checked ->
+                                    hiddenTagsPreferences.setPresetHidden(preset.tag, checked)
+                                },
+                                colors = CheckboxDefaults.colors(
+                                    checkedColor = MaterialTheme.colorScheme.primary,
+                                    uncheckedColor = MaterialTheme.colorScheme.onSurfaceVariant
+                                )
+                            )
+                            Spacer(modifier = Modifier.width(8.dp))
+                            Column(modifier = Modifier.weight(1f)) {
+                                Text(
+                                    text = preset.label,
+                                    style = MaterialTheme.typography.bodyMedium,
+                                    color = MaterialTheme.colorScheme.onSurface
+                                )
+                                Text(
+                                    text = preset.description,
+                                    style = MaterialTheme.typography.labelSmall,
+                                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                                )
+                            }
+                        }
+                    }
+                }
+
+                // Custom Hidden Tags Section
+                item {
+                    Spacer(modifier = Modifier.height(20.dp))
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text(
+                            text = "👁️",
+                            style = MaterialTheme.typography.titleMedium
+                        )
+                        Spacer(modifier = Modifier.width(8.dp))
+                        Text(
+                            text = "Tags personnalisés cachés",
+                            style = MaterialTheme.typography.titleMedium,
+                            color = MaterialTheme.colorScheme.onSurface
+                        )
+                    }
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Text(
+                        text = "Ajoutez vos propres tags à masquer (wildcard: note-*)",
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                    )
+                }
+
+                // Input field for custom tags
+                item {
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        OutlinedTextField(
+                            value = customTagInput,
+                            onValueChange = { customTagInput = it },
+                            modifier = Modifier.weight(1f),
+                            placeholder = {
+                                Text(
+                                    "Nom du tag...",
+                                    style = MaterialTheme.typography.bodySmall
+                                )
+                            },
+                            singleLine = true,
+                            keyboardOptions = KeyboardOptions(
+                                imeAction = ImeAction.Done
+                            ),
+                            shape = RoundedCornerShape(12.dp),
+                            textStyle = MaterialTheme.typography.bodyMedium
+                        )
+                        Spacer(modifier = Modifier.width(8.dp))
+                        FilledTonalButton(
+                            onClick = {
+                                if (customTagInput.isNotBlank()) {
+                                    hiddenTagsPreferences.addCustomHiddenTag(customTagInput)
+                                    customTagInput = ""
+                                }
+                            },
+                            enabled = customTagInput.isNotBlank()
+                        ) {
+                            Icon(
+                                Icons.Default.Add,
+                                contentDescription = "Ajouter",
+                                modifier = Modifier.size(18.dp)
+                            )
+                            Spacer(modifier = Modifier.width(4.dp))
+                            Text("Ajouter")
+                        }
+                    }
+                }
+
+                // Custom tags list (chips)
+                if (customTags.isNotEmpty()) {
+                    item {
+                        Spacer(modifier = Modifier.height(8.dp))
+                        // Using FlowRow equivalent with wrapping
+                        @OptIn(ExperimentalLayoutApi::class)
+                        FlowRow(
+                            modifier = Modifier.fillMaxWidth(),
+                            horizontalArrangement = Arrangement.spacedBy(8.dp),
+                            verticalArrangement = Arrangement.spacedBy(8.dp)
+                        ) {
+                            customTags.sorted().forEach { tag ->
+                                InputChip(
+                                    selected = true,
+                                    onClick = { },
+                                    label = { Text(tag, style = MaterialTheme.typography.bodySmall) },
+                                    trailingIcon = {
+                                        IconButton(
+                                            onClick = { hiddenTagsPreferences.removeCustomHiddenTag(tag) },
+                                            modifier = Modifier.size(18.dp)
+                                        ) {
+                                            Icon(
+                                                Icons.Default.Close,
+                                                contentDescription = "Supprimer",
+                                                modifier = Modifier.size(14.dp),
+                                                tint = MaterialTheme.colorScheme.error
+                                            )
+                                        }
+                                    },
+                                    shape = RoundedCornerShape(20.dp),
+                                    colors = InputChipDefaults.inputChipColors(
+                                        selectedContainerColor = MaterialTheme.colorScheme.primaryContainer,
+                                        selectedLabelColor = MaterialTheme.colorScheme.onPrimaryContainer
+                                    )
+                                )
+                            }
+                        }
+                    }
+                }
+
+                // Reset to defaults
+                item {
+                    Spacer(modifier = Modifier.height(20.dp))
+                    OutlinedButton(
+                        onClick = { hiddenTagsPreferences.resetToDefaults() },
+                        modifier = Modifier.fillMaxWidth(),
+                        shape = RoundedCornerShape(12.dp)
+                    ) {
+                        Icon(
+                            Icons.Default.Refresh,
+                            contentDescription = null,
+                            modifier = Modifier.size(18.dp)
+                        )
+                        Spacer(modifier = Modifier.width(8.dp))
+                        Text("Réinitialiser par défaut")
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) {
+                Text("Fermer")
+            }
+        }
+    )
+}

app/src/main/java/com/shaarit/presentation/settings/SettingsViewModel.kt

@@ -4,6 +4,7 @@ import android.net.Uri
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.shaarit.core.storage.BiometricAuthManager
+import com.shaarit.core.storage.HiddenTagsPreferences
 import com.shaarit.core.storage.SecurityPreferences
 import com.shaarit.core.storage.TimezonePreferences
 import com.shaarit.core.storage.TokenManager
@@ -37,7 +38,8 @@ class SettingsViewModel @Inject constructor(
     val themePreferences: ThemePreferences,
     val securityPreferences: SecurityPreferences,
     val biometricAuthManager: BiometricAuthManager,
-    val timezonePreferences: TimezonePreferences
+    val timezonePreferences: TimezonePreferences,
+    val hiddenTagsPreferences: HiddenTagsPreferences
 ) : ViewModel() {
 
     private val _uiState = MutableStateFlow(SettingsUiState())

app/src/main/java/com/shaarit/presentation/tags/TagsViewModel.kt

@@ -2,6 +2,7 @@ package com.shaarit.presentation.tags
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import com.shaarit.core.storage.HiddenTagsPreferences
 import com.shaarit.domain.model.ShaarliLink
 import com.shaarit.domain.model.ShaarliTag
 import com.shaarit.domain.repository.LinkRepository
@@ -12,7 +13,10 @@ import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
 
 @HiltViewModel
-class TagsViewModel @Inject constructor(private val linkRepository: LinkRepository) : ViewModel() {
+class TagsViewModel @Inject constructor(
+    private val linkRepository: LinkRepository,
+    private val hiddenTagsPreferences: HiddenTagsPreferences
+) : ViewModel() {
 
     private val _uiState = MutableStateFlow<TagsUiState>(TagsUiState.Loading)
     val uiState = _uiState.asStateFlow()
@@ -62,11 +66,14 @@ class TagsViewModel @Inject constructor(private val linkRepository: LinkReposito
         if (state !is TagsUiState.Success) return emptyList()
 
         val query = _searchQuery.value.lowercase()
-        return if (query.isBlank()) {
+        val filteredBySearch = if (query.isBlank()) {
             state.tags
         } else {
             state.tags.filter { it.name.lowercase().contains(query) }
         }
+        
+        // Filter out hidden tags
+        return filteredBySearch.filter { !hiddenTagsPreferences.isTagHidden(it.name) }
     }
 
     fun onTagSelected(tag: ShaarliTag) {

app/src/main/java/com/shaarit/ui/components/PremiumComponents.kt

@@ -6,6 +6,7 @@ import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.tween
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
+import androidx.compose.ui.draw.paint
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.ExperimentalFoundationApi
@@ -34,6 +35,7 @@ fun GlassCard(
         onClick: (() -> Unit)? = null,
         onLongClick: (() -> Unit)? = null,
         glowColor: Color = MaterialTheme.colorScheme.primary,
+        backgroundImage: Int? = null,
         content: @Composable ColumnScope.() -> Unit
 ) {
     val interactionSource = remember { MutableInteractionSource() }
@@ -59,6 +61,13 @@ fun GlassCard(
                     animationSpec = tween(150)
             )
 
+                    val glassBackground = Brush.verticalGradient(
+                        colors = listOf(
+                            MaterialTheme.colorScheme.surfaceVariant.copy(alpha = if (backgroundImage != null) 0.6f else 0.95f),
+                            MaterialTheme.colorScheme.primaryContainer.copy(alpha = if (backgroundImage != null) 0.5f else 0.9f)
+                        )
+                    )
+
                     val cardModifier =
                             modifier
                                     .graphicsLayer {
@@ -72,30 +81,6 @@ fun GlassCard(
                                             spotColor = glowColor.copy(alpha = 0.2f)
                                     )
                                     .clip(RoundedCornerShape(16.dp))
-                    .background(
-                            brush =
-                                    Brush.verticalGradient(
-                                            colors =
-                                                    listOf(
-                                                            MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.95f),
-                                                            MaterialTheme.colorScheme.primaryContainer.copy(
-                                                                    alpha = 0.9f
-                                                            )
-                                                    )
-                                    )
-                    )
-                    .border(
-                            width = 1.dp,
-                            brush =
-                                    Brush.linearGradient(
-                                            colors =
-                                                    listOf(
-                                                            borderColor,
-                                                            borderColor.copy(alpha = 0.1f)
-                                                    )
-                                    ),
-                            shape = RoundedCornerShape(16.dp)
-                    )
 
     val finalModifier =
             if (onClick != null || onLongClick != null) {
@@ -109,7 +94,36 @@ fun GlassCard(
                 cardModifier
             }
 
-    Column(modifier = finalModifier.padding(16.dp), content = content)
+    Box(modifier = finalModifier) {
+        if (backgroundImage != null) {
+            androidx.compose.foundation.Image(
+                painter = androidx.compose.ui.res.painterResource(id = backgroundImage),
+                contentDescription = null,
+                contentScale = androidx.compose.ui.layout.ContentScale.Crop,
+                alignment = Alignment.BottomCenter,
+                modifier = Modifier.matchParentSize()
+            )
+        }
+        
+        // Background and border
+        Box(
+            modifier = Modifier
+                .matchParentSize()
+                .background(brush = glassBackground)
+                .border(
+                    width = 1.dp,
+                    brush = Brush.linearGradient(
+                        colors = listOf(borderColor, borderColor.copy(alpha = 0.1f))
+                    ),
+                    shape = RoundedCornerShape(16.dp)
+                )
+        )
+        
+        Column(
+            modifier = Modifier.fillMaxSize().padding(16.dp),
+            content = content
+        )
+    }
 }
 
 /** Premium gradient button with glow effect */

version.properties

@@ -1,3 +1,3 @@
-#Sun Feb 15 10:38:54 2026
-VERSION_NAME=2.1.8
-VERSION_CODE=23
+#Sun Feb 22 14:59:52 2026
+VERSION_NAME=2.5.1
+VERSION_CODE=28