feat: official Postiz icon + strip HTML from post content display

- Replace icon.png with official Postiz logo (1024x1024, generated from
  upstream postiz.svg at gitroomhq/postiz-app)
- Add lib/stripHtml.ts: converts <br>/<p> to newlines, strips all tags,
  decodes HTML entities
- PostCard: use stripHtml on content before truncation and display
- posts.tsx: use stripHtml for context menu preview and clipboard copy
  (API payloads keep original HTML for retry/reschedule)

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

artifacts/postiz-mobile/app/(tabs)/compose.tsx

@@ -4,6 +4,7 @@ import DateTimePicker from "@react-native-community/datetimepicker";
 import AsyncStorage from "@react-native-async-storage/async-storage";
 import * as Haptics from "expo-haptics";
 import { Image } from "expo-image";
+import * as ImageManipulator from "expo-image-manipulator";
 import * as ImagePicker from "expo-image-picker";
 import { fetch as expoFetch } from "expo/fetch";
 import { useLocalSearchParams } from "expo-router";
@@ -146,10 +147,25 @@ export default function ComposeScreen() {
     const result = await ImagePicker.launchImageLibraryAsync({
       mediaTypes: ["images"],
       allowsEditing: false,
-      quality: 0.85,
+      quality: 1,
     });
     if (!result.canceled && result.assets[0]) {
-      setImageUri(result.assets[0].uri);
+      const asset = result.assets[0];
+      const MAX_DIM = 1920;
+      const w = asset.width ?? 0;
+      const h = asset.height ?? 0;
+      const needsResize = w > MAX_DIM || h > MAX_DIM;
+      if (needsResize) {
+        const landscape = w >= h;
+        const resized = await ImageManipulator.manipulateAsync(
+          asset.uri,
+          [{ resize: landscape ? { width: MAX_DIM } : { height: MAX_DIM } }],
+          { compress: 0.85, format: ImageManipulator.SaveFormat.JPEG }
+        );
+        setImageUri(resized.uri);
+      } else {
+        setImageUri(asset.uri);
+      }
       setExistingMedia([]);
     }
   };

artifacts/postiz-mobile/app/(tabs)/posts.tsx

@@ -22,6 +22,7 @@ import { PostCard } from "@/components/PostCard";
 import { PostizPost, usePostiz } from "@/context/PostizContext";
 import { useColors } from "@/hooks/useColors";
 import { extractError } from "@/lib/extractError";
+import { stripHtml } from "@/lib/stripHtml";
 
 const SORT_STORAGE_KEY = "postiz_posts_sort";
 
@@ -193,14 +194,15 @@ export default function PostsScreen() {
   const showContextMenu = (post: PostizPost) => {
     Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Medium);
 
-    const preview = post.content.slice(0, 60) + (post.content.length > 60 ? "…" : "");
+    const plain = stripHtml(post.content);
+    const preview = plain.slice(0, 60) + (plain.length > 60 ? "…" : "");
 
     const buttons: Array<{ text: string; style?: "cancel" | "destructive" | "default"; onPress?: () => void }> = [];
 
     buttons.push({
       text: "Copy text",
       onPress: async () => {
-        await Clipboard.setStringAsync(post.content);
+        await Clipboard.setStringAsync(stripHtml(post.content));
         Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
         setCopyToast(true);
         setTimeout(() => setCopyToast(false), 2000);

artifacts/postiz-mobile/components/PostCard.tsx

@@ -12,6 +12,7 @@ import {
 import { Swipeable } from "react-native-gesture-handler";
 import { useColors } from "@/hooks/useColors";
 import { PostizPost } from "@/context/PostizContext";
+import { stripHtml } from "@/lib/stripHtml";
 import { StatusBadge } from "./StatusBadge";
 
 interface PostCardProps {
@@ -118,10 +119,11 @@ export function PostCard({ post, onDelete, onLongPress, onReschedule }: PostCard
       : undefined;
 
   const integrations = post.integrations ?? (post.integration ? [post.integration] : []);
+  const plainContent = stripHtml(post.content);
   const truncatedContent =
-    post.content.length > 140
+    plainContent.length > 140
-      ? post.content.slice(0, 140) + "…"
+      ? plainContent.slice(0, 140) + "…"
-      : post.content;
+      : plainContent;
 
   return (
     <Swipeable

artifacts/postiz-mobile/lib/stripHtml.ts

@@ -0,0 +1,14 @@
+export function stripHtml(html: string): string {
+  return html
+    .replace(/<br\s*\/?>/gi, "\n")
+    .replace(/<\/p>/gi, "\n")
+    .replace(/<[^>]+>/g, "")
+    .replace(/&amp;/g, "&")
+    .replace(/&lt;/g, "<")
+    .replace(/&gt;/g, ">")
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/&nbsp;/g, " ")
+    .replace(/\n{3,}/g, "\n\n")
+    .trim();
+}

artifacts/postiz-mobile/package.json

@@ -33,6 +33,7 @@
     "expo-glass-effect": "~0.1.4",
     "expo-haptics": "~15.0.8",
     "expo-image": "~3.0.11",
+    "expo-image-manipulator": "~13.0.6",
     "expo-image-picker": "~17.0.9",
     "expo-linear-gradient": "~15.0.8",
     "expo-linking": "~8.0.10",