fix invalid_source: map provider type to actual source code

apps/web/app.js

@@ -282,7 +282,7 @@
   function renderSourceRecords(items){const list=$('sourceRecordsList');list.innerHTML=items.length?`<div class="source-record-table"><table><tbody>${items.slice(0,25).map(record=>`<tr><td>${esc(record.name||record.title||record.id||'Unnamed record')}</td><td>${esc(record.source_name||record.source||'Unknown source')}</td><td>${esc(record.status||'Pending')}</td></tr>`).join('')}</tbody></table></div>`:'<div class="source-empty">No source records returned by the workspace.</div>';}
   async function loadSources(){sourceMessage('Loading sources…');try{const [sourcePayload,adapterPayload,recordPayload]=await Promise.all([jsonRequest('/api/v1/sources'),jsonRequest('/api/v1/sources/adapters'),jsonRequest('/api/v1/source-records?page_size=25')]);const configured=sourceItems(sourcePayload),registeredCodes=new Set(configured.map(sourceType)),optional=sourceItems(adapterPayload).filter(a=>!registeredCodes.has(a.source_code)).map(a=>({...a,kind:a.source_code,optional:true,configured:false,available:Boolean(a.available),enabled:false}));sources=[...configured,...optional];renderSources();renderSourceRecords(sourceItems(recordPayload));$('sourcesUpdatedAt').textContent=`Updated ${new Date().toLocaleTimeString([], {hour:'2-digit',minute:'2-digit'})}`;sourceMessage(sources.some(sourceState)?'':'No enabled source. Configure, test, and enable a source before discovery.');}catch(error){sources=[];renderSources();renderSourceRecords([]);if(error.message!=='unauthorized')sourceMessage(error.message||'Unable to load source registry.',true);}}
   function setSourceButtons(busy,status=''){['sourceSaveBtn','sourceTestBtn','sourceEnableBtn'].forEach(id=>{const el=$(id);if(el)el.disabled=busy||(id!=='sourceSaveBtn'&&!selectedSourceId);});if(status)$('sourceStatus').textContent=status;}
-  async function saveSource(event){event.preventDefault();const form=event.currentTarget,fields=Object.fromEntries(new FormData(form).entries());if(fields.source_type==='csv'&&!fields.csv_content.trim()){message('sourceFormMessage','CSV content is required for a CSV source.',true);return;}let providerSettings={};try{providerSettings=fields.provider_settings.trim()?JSON.parse(fields.provider_settings):{};}catch{message('sourceFormMessage','Provider settings must be valid JSON.',true);return;}setSourceButtons(true,'Saving source configuration…');message('sourceFormMessage','Saving source configuration…');const config={owner:fields.owner,terms_url:fields.terms_url,terms_status:fields.terms_status,rate_limit:fields.rate_limit,daily_quota:Number(fields.daily_quota),provider_settings:fields.provider_settings};if(fields.source_type==='csv')config.csv=fields.csv_content;else config.rows=[];try{const saved=await jsonRequest('/api/v1/sources',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({name:fields.name,kind:fields.source_type,config,policy:{owner:fields.owner,terms_url:fields.terms_url,terms_status:fields.terms_status,rate_limit:fields.rate_limit},quota:{daily_quota:Number(fields.daily_quota)},enabled:false})});selectedSourceId=saved.id||saved.source?.id||null;message('sourceFormMessage','Source configuration saved. It remains disabled until a successful test and explicit enablement.');await loadSources();}catch(error){if(error.message!=='unauthorized')message('sourceFormMessage',error.message||'Unable to save source configuration.',true);}finally{setSourceButtons(false);}}
+  async function saveSource(event){event.preventDefault();const form=event.currentTarget,fields=Object.fromEntries(new FormData(form).entries());if(fields.source_type==='csv'&&!fields.csv_content.trim()){message('sourceFormMessage','CSV content is required for a CSV source.',true);return;}let providerSettings={};try{providerSettings=fields.provider_settings.trim()?JSON.parse(fields.provider_settings):{};}catch{message('sourceFormMessage','Provider settings must be valid JSON.',true);return;}setSourceButtons(true,'Saving source configuration…');message('sourceFormMessage','Saving source configuration…');const rateLimit=parseInt(fields.rate_limit, 10);if(isNaN(rateLimit)||rateLimit<1||rateLimit>12){message('sourceFormMessage','Rate limit must be a number from 1 to 12.',true);return;}const config={owner:fields.owner,terms_url:fields.terms_url,terms_status:fields.terms_status,rate_limit:rateLimit,approved:true,public_access:true,daily_quota:Number(fields.daily_quota),provider_settings:fields.provider_settings};if(fields.source_type==='csv')config.csv=fields.csv_content;else config.rows=[];const kind=fields.source_type==='provider'?(providerSettings.provider||''):fields.source_type;if(!kind){message('sourceFormMessage','Select a provider to register.',true);return;}try{const saved=await jsonRequest('/api/v1/sources',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({name:fields.name,kind,config,policy:{owner:fields.owner,terms_url:fields.terms_url,terms_status:fields.terms_status,rate_limit:rateLimit},quota:{daily_quota:Number(fields.daily_quota)},enabled:false})});selectedSourceId=saved.id||saved.source?.id||null;message('sourceFormMessage','Source configuration saved. It remains disabled until a successful test and explicit enablement.');await loadSources();}catch(error){if(error.message!=='unauthorized')message('sourceFormMessage',error.message||'Unable to save source configuration.',true);}finally{setSourceButtons(false);}}
   function findRegisteredSource(id){return sources.find(item=>String(item.id)===String(id)&&!item.optional)||sources.find(item=>String(item.id)===String(id));}
   async function sourceAction(id, action) {
     if (action === 'setup') {
@@ -290,6 +290,10 @@
       $('sourceName').value = code.replace(/_/g, ' ').replace(/\b\w/g, c => c.toUpperCase());
       $('sourceType').value = 'provider';
       $('sourceProviderSettings').value = JSON.stringify({provider: code});
+      $('sourceRateLimit').value = '1';
+      if (code === 'google_browser_search') {
+        $('sourceTermsUrl').value = 'https://policies.google.com/terms';
+      }
       document.getElementById('sources').scrollIntoView({behavior: 'smooth'});
       return;
     }