NocoDB: Plaintext Password Comparison in Shared Views

Summary

The shared-view password check fell back to strict-equality (===) comparison for
legacy plaintext passwords, leaking the password's length and per-character prefix
through response timing.

Details

The bcrypt branch (hashes starting with $2a$/$2b$) was unaffected. The legacy
fallback in View.ts now uses crypto.timingSafeEqual and a same-length dummy
compare on the length-mismatch path, so total comparison time is approximately
length-independent. The EE dashboard model's verifyPassword is patched the same way.

Impact

A network-positioned attacker could mount a timing oracle against shared views whose
passwords predated the bcrypt migration. Exploitation requires the ability to time
shared-view authentication responses but no prior authentication.

Credit

This issue was reported by @Proscan-one.