Fix stallDurations metadata buffer, add web=true, rebuild provider

- Increase camera metadata buffer from 2048 to 4096 bytes to prevent
  silent truncation of stallDurations (required by Android 16)
- Add web=true to module.prop for KernelSU WebUI detection
- Rebuilt virtual_camera_provider with buffer fix
- Updated WebUI JS with improved status display
- Bump version to 3.1

webui/script.js

@@ -3,6 +3,18 @@ function log(m,t){const e=document.getElementById('console');const d=new Date();
   e.innerHTML+=`<div class="${t||'log'}">[${d.toLocaleTimeString()}] ${m}</div>`;e.scrollTop=e.scrollHeight}
 async function exec(c){try{return await KSU.exec(c)}catch(e){log('exec error','err');return null}}
 
+async function loadConfig(){
+  const r=await exec(CMD+' get_config');if(!r)return;
+  try{const c=JSON.parse(r);
+    document.querySelector(`.src-btn[data-src="${c.source_type}"]`).click();
+    document.getElementById('rtsp-url').value=c.rtsp_url||'';
+    document.getElementById('mp4-path').value=c.mp4_path||'';
+    document.getElementById('res-w').value=c.res_w||1920;
+    document.getElementById('res-h').value=c.res_h||1080;
+    document.getElementById('fps').value=c.fps||30;
+  }catch(e){}
+}
+
 async function status(){
   const r=await exec(CMD+' status');if(!r)return;
   try{
@@ -18,6 +30,7 @@ async function status(){
 }
 
 document.addEventListener('DOMContentLoaded',()=>{
+  loadConfig();
   status();
   document.querySelectorAll('.src-btn').forEach(b=>{
     b.addEventListener('click',()=>{
@@ -38,11 +51,14 @@ document.addEventListener('DOMContentLoaded',()=>{
     log('Config saved','ok');
   });
   document.getElementById('btn-start').addEventListener('click',async()=>{
-    log('Starting provider...','info');await exec(CMD+' start');log('Provider started','ok');setTimeout(status,2000);
+    log('Starting provider...','info');await exec(CMD+' start');log('Provider started','ok');setTimeout(status,3000);
   });
   document.getElementById('btn-stop').addEventListener('click',async()=>{
     log('Stopping...','info');await exec(CMD+' stop');log('Stopped','ok');status();
   });
+  document.getElementById('btn-restart').addEventListener('click',async()=>{
+    log('Restarting provider...','info');await exec(CMD+' restart');log('Provider restarted','ok');setTimeout(status,3000);
+  });
   document.getElementById('btn-feed').addEventListener('click',async()=>{
     log('Starting feeder...','info');await exec(CMD+' start_feeder');log('Feeder started','ok');setTimeout(status,2000);
   });
@@ -50,4 +66,4 @@ document.addEventListener('DOMContentLoaded',()=>{
     log('Stopping feeder...','info');await exec(CMD+' stop_feeder');log('Feeder stopped','ok');status();
   });
   document.getElementById('btn-refresh').addEventListener('click',status);
-});
+});