feat: add web app pages for org portal, thread viewer, and admin org management

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/app/_lib/org-admin-context.tsx

@@ -0,0 +1,76 @@
+'use client';
+
+import { createContext, useCallback, useContext, useEffect, useState } from 'react';
+
+interface OrgProfile {
+  id: string;
+  email: string;
+  name: string | null;
+  role: 'ORG_OWNER' | 'ORG_ADMIN';
+  organization: { id: string; slug: string; name: string };
+}
+
+interface OrgAdminState {
+  orgAdmin: OrgProfile | null;
+  loading: boolean;
+  login: (email: string, password: string) => Promise<void>;
+  logout: () => Promise<void>;
+}
+
+const OrgAdminContext = createContext<OrgAdminState | null>(null);
+
+export function OrgAdminProvider({ children }: { children: React.ReactNode }) {
+  const [orgAdmin, setOrgAdmin] = useState<OrgProfile | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  const checkSession = useCallback(async () => {
+    try {
+      const res = await fetch('/api/auth/org/me', { credentials: 'include' });
+      if (res.ok) {
+        const data = await res.json();
+        setOrgAdmin(data);
+      } else {
+        setOrgAdmin(null);
+      }
+    } catch {
+      setOrgAdmin(null);
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => { void checkSession(); }, [checkSession]);
+
+  const login = useCallback(async (email: string, password: string) => {
+    const res = await fetch('/api/auth/org/login', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ email, password }),
+    });
+    if (!res.ok) {
+      const err = await res.json().catch(() => ({ message: 'Login failed' }));
+      throw new Error(err.message ?? 'Login failed');
+    }
+    const data = await res.json();
+    setOrgAdmin(data.orgAdmin);
+    // Refresh full profile (includes organization object)
+    void checkSession();
+  }, [checkSession]);
+
+  const logout = useCallback(async () => {
+    await fetch('/api/auth/org/logout', { method: 'POST', credentials: 'include' });
+    setOrgAdmin(null);
+  }, []);
+
+  return (
+    <OrgAdminContext.Provider value={{ orgAdmin, loading, login, logout }}>
+      {children}
+    </OrgAdminContext.Provider>
+  );
+}
+
+export function useOrgAdmin(): OrgAdminState {
+  const ctx = useContext(OrgAdminContext);
+  if (!ctx) throw new Error('useOrgAdmin must be used within <OrgAdminProvider>');
+  return ctx;
+}