Initial BizOne portal setup

docs/setup-notes.md

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+# Setup Notes
+
+## V6 improvements
+- Login page sudah ada
+- Demo token helper dipakai frontend agar alur fetch lebih kebayang
+- Contacts page sudah punya form skeleton + list fetch
+- Auth guard backend sudah return unauthorized kalau header tidak ada
+
+## Next recommended step
+- Simpan token beneran via cookie/session
+- Login form submit beneran
+- Contacts form POST beneran
+- JWT verification real, bukan check header doang