feat: add APlayer shortcode and audio support (#650)

* docs: improve error message clarity for shortcode parent block validation

* feat: add APlayer shortcode and audio support

* feat: support both APlayer and MetingJS

* feat: initialize APlayer when content decrypted

apps/test/content/posts/alert-and-admonition-test.md

@@ -1,7 +1,6 @@
 ---
-title: "Alerts and Admonition Syntax Test"
+title: Alerts and Admonition Syntax Test
 date: 2025-09-05T16:57:58+08:00
-draft: false
 collections:
   - Tests
 categories:

apps/test/content/posts/aplayer-test/Wavelength.lrc

@@ -0,0 +1,3 @@
+[00:00.00]APlayer audio1
+[00:04.01]is
+[00:08.02]amazing

apps/test/content/posts/aplayer-test/index.md

@@ -0,0 +1,26 @@
+---
+title: APlayer Test
+date: 2025-10-21T11:00:04+08:00
+collections:
+  - Tests
+categories:
+  - Shortcodes
+tags:
+  - APlayer
+---
+
+<!--more-->
+
+{{< aplayer fixed=false mini=false autoplay=false theme="#b7daff" loop="all" order="list" preload="auto" volume=0.7 mutex=true lrcType=3 listFolded=false listMaxHeight="" storageName="aplayer-setting" >}}
+  {{< audio name="Wavelength1" artist="oldmanyoung1" url="Wavelength.mp3" cover="Wavelength.webp" lrc="Wavelength.lrc" />}}
+  {{< audio name="Wavelength2" artist="oldmanyoung2" url="Wavelength.mp3" cover="Wavelength.webp" />}}
+{{< /aplayer >}}
+
+{{< aplayer fixed=false mini=false autoplay=false theme="#b7daff" loop="all" order="list" preload="auto" volume=0.7 mutex=true lrcType=1 listFolded=false listMaxHeight="" storageName="aplayer-setting" >}}
+  {{< audio name="Wavelength1" artist="oldmanyoung1" url="Wavelength.mp3" cover="Wavelength.webp" />}}
+  {{< audio name="Wavelength2" artist="oldmanyoung2" url="Wavelength.mp3" cover="Wavelength.webp" >}}
+    [00:00.00]APlayer audio2
+    [00:04.01]is
+    [00:08.02]amazing
+  {{< /audio >}}
+{{< /aplayer >}}