Add oauth_new: Complete OAuth authentication and comment system

- Created new oauth_new directory with clean OAuth implementation
- Added 4-tab interface: Lang, Comment, Collection, User Comments
- Implemented OAuth authentication with @atproto/oauth-client-browser
- Added comment posting functionality with putRecord
- Added proper PDS detection and error handling
- Skipped placeholder users to prevent errors
- Built comprehensive documentation (README.md, DEVELOPMENT.md)

🤖 Generated with [Claude Code](https://claude.ai/code)

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

oauth_new/src/hooks/useAdminData.js

@@ -0,0 +1,57 @@
+import { useState, useEffect } from 'react'
+import { atproto, collections } from '../api/atproto.js'
+import { getApiConfig } from '../utils/pds.js'
+import { env } from '../config/env.js'
+
+export function useAdminData() {
+  const [adminData, setAdminData] = useState({ 
+    did: '', 
+    profile: null, 
+    records: [], 
+    apiConfig: null 
+  })
+  const [langRecords, setLangRecords] = useState([])
+  const [commentRecords, setCommentRecords] = useState([])
+  const [loading, setLoading] = useState(true)
+  const [error, setError] = useState(null)
+
+  useEffect(() => {
+    loadAdminData()
+  }, [])
+
+  const loadAdminData = async () => {
+    try {
+      setLoading(true)
+      setError(null)
+
+      const apiConfig = getApiConfig(`https://${env.pds}`)
+      const did = await atproto.getDid(env.pds, env.admin)
+      const profile = await atproto.getProfile(apiConfig.bsky, did)
+      
+      // Load all data in parallel
+      const [records, lang, comment] = await Promise.all([
+        collections.getBase(apiConfig.pds, did, env.collection),
+        collections.getLang(apiConfig.pds, did, env.collection),
+        collections.getComment(apiConfig.pds, did, env.collection)
+      ])
+
+      setAdminData({ did, profile, records, apiConfig })
+      setLangRecords(lang)
+      setCommentRecords(comment)
+    } catch (err) {
+      console.error('Failed to load admin data:', err)
+      setError(err.message)
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  return {
+    adminData,
+    langRecords,
+    commentRecords,
+    loading,
+    error,
+    refresh: loadAdminData
+  }
+}