fix(learning): load readme images over https

src/lib/learning.ts

@@ -132,7 +132,7 @@ export function isLearningProjectMediaUrl(value: string): boolean {
   return PROJECT_MEDIA_URL_PATTERN.test(value);
 }
 
-export function isSafeLearningCoverUrl(value: string): boolean {
+export function isSafeLearningImageUrl(value: string): boolean {
   if (PROJECT_MEDIA_URL_PATTERN.test(value)) return true;
   try {
     const url = new URL(value);

src/pages/Learning/ProjectDetail.tsx

@@ -146,6 +146,7 @@ export function LearningProjectDetail() {
                 <ProjectImage
                   src={src}
                   alt={alt || '项目说明图片'}
+                  allowHttps
                   className="my-6 max-h-[34rem] w-full rounded-2xl border border-black/10 object-contain"
                 />
               ) : null,

src/pages/Learning/ProjectImage.tsx

@@ -3,7 +3,7 @@ import { ImageOff, Loader2 } from 'lucide-react';
 import {
   fetchLearningProjectMedia,
   isLearningProjectMediaUrl,
-  isSafeLearningCoverUrl,
+  isSafeLearningImageUrl,
 } from '@/lib/learning';
 import { cn } from '@/lib/utils';
 
@@ -16,7 +16,7 @@ type ProjectImageProps = {
 
 export function ProjectImage({ src, alt, className, allowHttps = false }: ProjectImageProps) {
   const controlledMedia = isLearningProjectMediaUrl(src);
-  const directSource = allowHttps && isSafeLearningCoverUrl(src) && !controlledMedia ? src : null;
+  const directSource = allowHttps && isSafeLearningImageUrl(src) && !controlledMedia ? src : null;
   const [failedSource, setFailedSource] = useState<string | null>(null);
   const [state, setState] = useState<{ input: string; source: string; status: 'ready' | 'error' }>({
     input: '',