feat: multi-images, media library, + fix HTML in notifications

Multi-images (compose):
- Replace single imageUri with mediaItems: MediaItem[] (local | uploaded)
- allowsMultipleSelection: true, selectionLimit up to 4 total
- Each picked image is resized to max 1920px before upload
- Thumbnail row with individual × remove buttons
- uploaded badge (cloud icon) on library/prefill images
- buildMediaPayload() uploads local items, passes uploaded items as-is

Media Library:
- New MediaLibraryModal component — full-screen modal
- Fetches GET /media from Postiz instance
- 3-column grid with multi-select (capped at remaining slots)
- Selected items added to compose media pool

Notifications:
- Strip HTML from notification body text

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

artifacts/postiz-mobile/components/MediaLibraryModal.tsx

@@ -0,0 +1,209 @@
+import { Feather } from "@expo/vector-icons";
+import { Image } from "expo-image";
+import React, { useCallback, useEffect, useState } from "react";
+import {
+  ActivityIndicator,
+  FlatList,
+  Modal,
+  StyleSheet,
+  Text,
+  TouchableOpacity,
+  View,
+} from "react-native";
+import { useSafeAreaInsets } from "react-native-safe-area-context";
+import { useColors } from "@/hooks/useColors";
+
+interface MediaItem {
+  id: string;
+  path: string;
+  createdAt?: string;
+}
+
+interface Props {
+  visible: boolean;
+  baseUrl: string;
+  apiKey: string;
+  maxSelect: number;
+  onClose: () => void;
+  onSelect: (items: MediaItem[]) => void;
+}
+
+function resolveUrl(path: string, baseUrl: string): string {
+  if (path.startsWith("http://") || path.startsWith("https://")) return path;
+  const origin = baseUrl.replace(/\/api\/.*$/, "");
+  return `${origin}/${path.replace(/^\//, "")}`;
+}
+
+export function MediaLibraryModal({ visible, baseUrl, apiKey, maxSelect, onClose, onSelect }: Props) {
+  const colors = useColors();
+  const insets = useSafeAreaInsets();
+  const [items, setItems] = useState<MediaItem[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [selected, setSelected] = useState<Set<string>>(new Set());
+
+  const load = useCallback(async () => {
+    if (!baseUrl || !apiKey) return;
+    setLoading(true);
+    setError(null);
+    try {
+      // eslint-disable-next-line no-undef
+      const res = await globalThis.fetch(`${baseUrl}/media`, {
+        headers: { Authorization: apiKey },
+      });
+      if (!res.ok) throw new Error(`HTTP ${res.status}`);
+      const data = await res.json();
+      const list: MediaItem[] = Array.isArray(data)
+        ? data
+        : (data?.media ?? data?.items ?? data?.files ?? []);
+      setItems(list);
+    } catch (e: unknown) {
+      setError(e instanceof Error ? e.message : "Failed to load media");
+    } finally {
+      setLoading(false);
+    }
+  }, [baseUrl, apiKey]);
+
+  useEffect(() => {
+    if (visible) {
+      setSelected(new Set());
+      load();
+    }
+  }, [visible, load]);
+
+  const toggle = (id: string) => {
+    setSelected((prev) => {
+      const next = new Set(prev);
+      if (next.has(id)) {
+        next.delete(id);
+      } else if (next.size < maxSelect) {
+        next.add(id);
+      }
+      return next;
+    });
+  };
+
+  const handleConfirm = () => {
+    const chosen = items.filter((i) => selected.has(i.id));
+    onSelect(chosen);
+  };
+
+  return (
+    <Modal visible={visible} animationType="slide" onRequestClose={onClose}>
+      <View style={[styles.root, { backgroundColor: colors.background, paddingTop: insets.top }]}>
+        <View style={[styles.header, { borderBottomColor: colors.border }]}>
+          <TouchableOpacity onPress={onClose} activeOpacity={0.7} style={styles.closeBtn}>
+            <Feather name="x" size={20} color={colors.foreground} />
+          </TouchableOpacity>
+          <Text style={[styles.title, { color: colors.foreground }]}>Media Library</Text>
+          <TouchableOpacity
+            onPress={handleConfirm}
+            disabled={selected.size === 0}
+            activeOpacity={0.8}
+            style={[
+              styles.addBtn,
+              { backgroundColor: selected.size > 0 ? colors.primary : colors.muted },
+            ]}
+          >
+            <Text style={[styles.addBtnText, { color: colors.primaryForeground }]}>
+              {selected.size > 0 ? `Add ${selected.size}` : "Add"}
+            </Text>
+          </TouchableOpacity>
+        </View>
+
+        {loading ? (
+          <View style={styles.centered}>
+            <ActivityIndicator color={colors.primary} size="large" />
+          </View>
+        ) : error ? (
+          <View style={styles.centered}>
+            <Feather name="alert-circle" size={28} color={colors.error} />
+            <Text style={[styles.errorText, { color: colors.mutedForeground }]}>{error}</Text>
+            <TouchableOpacity
+              onPress={load}
+              style={[styles.retryBtn, { backgroundColor: colors.primary }]}
+              activeOpacity={0.8}
+            >
+              <Text style={[styles.retryText, { color: colors.primaryForeground }]}>Retry</Text>
+            </TouchableOpacity>
+          </View>
+        ) : items.length === 0 ? (
+          <View style={styles.centered}>
+            <Feather name="image" size={36} color={colors.mutedForeground} />
+            <Text style={[styles.emptyText, { color: colors.mutedForeground }]}>No media found</Text>
+          </View>
+        ) : (
+          <FlatList
+            data={items}
+            keyExtractor={(item) => item.id}
+            numColumns={3}
+            contentContainerStyle={[styles.grid, { paddingBottom: insets.bottom + 16 }]}
+            renderItem={({ item }) => {
+              const isSelected = selected.has(item.id);
+              const uri = resolveUrl(item.path, baseUrl);
+              return (
+                <TouchableOpacity
+                  onPress={() => toggle(item.id)}
+                  activeOpacity={0.8}
+                  style={styles.cell}
+                >
+                  <Image
+                    source={{ uri }}
+                    style={styles.cellImage}
+                    contentFit="cover"
+                  />
+                  {isSelected && (
+                    <View style={[styles.selectedOverlay, { backgroundColor: colors.primary + "99" }]}>
+                      <View style={[styles.checkCircle, { backgroundColor: colors.primary }]}>
+                        <Feather name="check" size={14} color="#fff" />
+                      </View>
+                    </View>
+                  )}
+                </TouchableOpacity>
+              );
+            }}
+          />
+        )}
+      </View>
+    </Modal>
+  );
+}
+
+const CELL = 120;
+
+const styles = StyleSheet.create({
+  root: { flex: 1 },
+  header: {
+    flexDirection: "row",
+    alignItems: "center",
+    paddingHorizontal: 16,
+    paddingVertical: 14,
+    borderBottomWidth: StyleSheet.hairlineWidth,
+    gap: 12,
+  },
+  closeBtn: { padding: 4 },
+  title: { flex: 1, fontSize: 17, fontFamily: "Inter_600SemiBold" },
+  addBtn: { paddingHorizontal: 16, paddingVertical: 8, borderRadius: 20 },
+  addBtnText: { fontSize: 14, fontFamily: "Inter_600SemiBold" },
+  centered: { flex: 1, alignItems: "center", justifyContent: "center", gap: 12 },
+  errorText: { fontSize: 14, fontFamily: "Inter_400Regular", textAlign: "center", paddingHorizontal: 32 },
+  emptyText: { fontSize: 14, fontFamily: "Inter_400Regular" },
+  retryBtn: { paddingHorizontal: 20, paddingVertical: 10, borderRadius: 10 },
+  retryText: { fontSize: 14, fontFamily: "Inter_600SemiBold" },
+  grid: { padding: 2 },
+  cell: { width: CELL, height: CELL, margin: 2 },
+  cellImage: { width: CELL, height: CELL, borderRadius: 4 },
+  selectedOverlay: {
+    ...StyleSheet.absoluteFillObject,
+    borderRadius: 4,
+    alignItems: "center",
+    justifyContent: "center",
+  },
+  checkCircle: {
+    width: 28,
+    height: 28,
+    borderRadius: 14,
+    alignItems: "center",
+    justifyContent: "center",
+  },
+});

artifacts/postiz-mobile/hooks/useNotifications.ts

@@ -2,6 +2,7 @@ import { useCallback, useEffect, useRef } from "react";
 import { Platform } from "react-native";
 import { usePostiz } from "@/context/PostizContext";
 import { PostizPost } from "@/context/PostizContext";
+import { stripHtml } from "@/lib/stripHtml";
 
 const POLL_INTERVAL_MS = 15 * 60 * 1000;
 const SEEN_KEY = "postiz_seen_statuses";
@@ -44,10 +45,7 @@ async function sendStatusNotification(post: PostizPost) {
     await Notifications.scheduleNotificationAsync({
       content: {
         title: isError ? "Post failed to publish" : "Post published!",
-        body:
+        body: (() => { const t = stripHtml(post.content); return t.length > 80 ? t.slice(0, 80) + "…" : t; })(),
-          post.content.length > 80
-            ? post.content.slice(0, 80) + "…"
-            : post.content,
         data: { postId: post.id },
       },
       trigger: null,