Fix: Preserving user_email in audio job status to prevent 403 errors

Fix: Final bulletproof video pipeline with whisper and full fallbacks

Fix: Added sentencepiece and improved model patching with fail-safes

Fix: Moondream2 compatibility and added fail-safe for reasoning engine

Fix: Preserving user_email in video job status to prevent 403 errors

fix: use safe get() for DB save to prevent KeyError

clean backend deploy

Initial Deploy: FakeShield Backend v2.0 (Sovereign Vanguard)