Connection Status
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OAuth Client credentials — checking…
Redirect URI — ຕ້ອງໃສ່ URL ນີ້ໃນ Google Cloud Console → OAuth consent screen → Authorized redirect URIs:
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Scopes — ✓
youtube.upload + youtube.readonlyCallback handler — ✓ ມີແລ້ວ (ໜ້ານີ້ — server-side exchange)
Token storage + refresh — ✓ Firestore + auto-refresh before expiry